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Showing posts from July, 2015

In The Last Lecture, what was the author's mood while giving his presentation?

Randy's positive mood is reflective of his lecture's topic. Randy knew that people might perceive his "last lecture" as focusing on death and dying.  However, Randy challenged this preconception through his choice of topic. Randy decided to make the lecture about dreams and the power of transformative hope: Sitting there, I knew that despite the cancer, I truly believed I was a lucky man because I had lived out these dreams. And I had lived out my dreams, in great measure, because of things I was taught by all sorts of extraordinary people along the way. If I was able to tell my story with the passion I felt, my lecture might help others find a path to fulfilling their own dreams. Randy's last lecture is not about his passing.  Rather, he seized it as an opportunity to talk about the beauty of dreams.   This topic contributed to Randy's very upbeat mood. Randy was convinced that his entire life was a testament to dreams being realized.  It is for this reason h...

What are the ongoing debates among historians about Chicago Organized Crime?

According to Robert M. Lombardo, author of Organized Crime in Chicago: Beyond the Mafia , the study of crime in Chicago has long been plagued with controversies. While the media and public focused intense attention on notorious organized crime figures such as Al Capone, very few sociologists studied organized crime in a scholarly way. One of the few was John Landesco, who published Organized Crime in Chicago in 1929 (this book was reprinted in 1968). Landesco differed from most sociologists in the Chicago School of Sociology by laying blame for organized crime on the business community and the government of Chicago, and he advocated a reform of the social structure of Chicago, including services to integrate Sicilian immigrants into society, and the reform of the police department. He believed that the business, government, and social stratification of Chicago gave rise to organized crime, not immigrants themselves.  Another debate among historians and sociologists is how to even clas...

What did Sheriff Tate and Atticus decide to tell everyone about the attack?

In Chapter 30, Sheriff Tate and Atticus are discussing what happened during the attack. Initially, Atticus believes Jem is responsible for stabbing and killing Bob Ewell. Sheriff Tate then explains to Atticus that Boo Radley was the person who killed Bob Ewell, but says he will tell the community that Bob Ewell fell on his own knife and died. Sheriff Tate then comments that he refuses to tell the community that Boo Radley heroically saved the children by defending them against Bob Ewell because it would bring Boo unwanted attention. Sheriff Tate knows Boo Radley is extremely shy and reclusive. He considers it a sin to have various citizens bothering and thanking Boo for saving Jem and Scout. Scout understands why Sheriff Tate is protecting Boo Radley and compares Boo's situation to shooting a mockingbird.

What is at the top of Melba's list of New Year's resolutions in Warriors Don't Cry?

When Melba can't go out on New Year's Eve, she sits at home compiling her New Year's resolutions. At the top of her list is to survive until May 29 (the last day of school). She also resolves to have the strength not to fight back against the students who are tormenting her at Central High School, where she is part of the Little Rock Nine who are desegregating the school. Her other resolutions include understanding how Gandhi behaved when his life presented him with difficulties. Gandhi, like the Little Rock Nine, was an adherent of non-violence, and she wants to study his reaction to violence to understand how to respond to violent students and other problems in her life in a non-violent way. Clearly, her resolutions are different than those of most people of her age. 

How are Atticus and Scout presented in To Kill a Mockingbird?

Each of these characters is complex, just like individuals are in real life. As a result, the way they are represented is multi-faceted. Scout is presented as innocent, rowdy, intelligent, insensitive to some things and overly sensitive to others, ignorant (meaning she literally does not know certain things due to her age), moral, precocious, and genuine. Because she is only six when the book begins, she has a lot of room for growth as the story progresses. Her interactions with some people are different than others, so she is presented in different ways according to those interactions and circumstances. For example, she is a tomboy and her "rowdy" side is often seen in the chapters of the book where she is playing with Jem and Dill, or when she is getting into scraps with children at school or with her cousin Frances.  Atticus is presented in an overwhelmingly positive light in the novel. He is literally considered one of best fictional characters in literature in terms of h...

Let y(t) represent your retirement account balance, in dollars, after t years. Each year the account earns 4% interest, and you deposit 4% of your...

Hello! As I understand, your current annual income is $38000 at t=0, and probably y(0)=0. Then the annual income after t years is `38000*(1.02)^t.` For each next year, the retirement account balance y(t+1) becomes `y(t)*1.04+38000*(1.02)^t*1.04.` Therefore the difference y(t+1)-y(t) is equal to `y(t)*0.04+38000*1.04*(1.02)^t.` The left side is something like y'(t): `(y(t+h)-y(t))/h` for h=1 (year). A year is a discrete variable, so h cannot approach zero. Thus we obtain the differential equation `y'(t)=y(t)*0.04+39520*(1.02)^t.`

Two cyclists approach each other from opposite directions on a bike path. Amy is cycling east at 5.7 m/s, while Colin is cycling west at 6.4 m/s....

As we know, any mechanical movement of a physical body occurs only relative to some other body. The most common reference body on Earth's surface is Earth itself. We consider it "at rest," although this is relative, too. So, "Amy is cycling East at `5.7` m/s, while Colin is cycling West at `6.4` m/s" means that they have these speeds and directions relative to Earth. "Carolyn is standing" means she is at rest relative to Earth. All three persons move with constant velocities (speeds and directions) relative to each other. Relative to Amy, Colin's direction is towards her, the west direction, and the speed is the sum of their speeds relative to Earth, i.e. `5.7+6.4=12.1` (m/s). This is the answer for a) . Relative to Colin, Carolyn's speed is the same `6.4` m/s, and the direction is towards Colin, to the east. This is the answer for b) .

In The Lion and the Jewel by Wole Soyinka, what evidence is there that Sidi views her sexuality as a weapon, men as her opponents, and her...

In the first scene of the play entitled "Morning," the village girls tell Sidi that she has become famous because her image is throughout an entire magazine. Sidi is excited and believes that she is more esteemed than Baroka because of her fame. When the girls discuss how many leaves of the magazine her picture takes up, Lakunle counts three leaves, and Sidi says, " One leaf for every heart that I shall break" (Soyinka 13). In the second scene of the play entitled "Noon," Sadiku tells Sidi that Baroka asks for her hand in marriage. Sidi is quick to reject Baroka's offer and begins to criticize him for his old age. Sidi has become conceited and believes that she is more important than the Bale of Ilujinle. Sidi looks at her images in the magazine and comments that she never noticed her velvet skin before. Lakunle feels guilty for not mentioning her skin and says that he would have said something, but believed it was not the proper thing to do. Sidi pus...

Kristen has 7.5 mL of water and her lab partner Rebecca has 2.3 L. How many mL do they have?

Q: Kristen has 7.5 mL of water. Her lab partner Rebecca has 2.3 L of water. How many mL of water do they have between the two of them? A:  The key to this question is the knowledge that one liter (L) of water (or anything, for that matter) is equivalent to 1,000 milliliters (mL). An easy way to remember this is that the prefix "milli-" always means one-thousandth. Since the liter is the standard unit, a milliliter is one-thousandth of a liter. In other words, a liter is made up of one thousand milliliters. In order to add the two together, we need them to be in the same units. Since the question is asking us for milliliters, let's convert Rebecca's water into milliliters, as well (we already know Kristen has 7.5 mL). Converting will give us a common unit that we can add together.  Since we know there are 1,000 milliliters (mL) in a liter (L), we can use multiplication to get the number of milliliters that Rebecca has. In other words, Rebecca has: `2.3 L * (1,000 mL)/L...

`sum_(n=1)^oo 4/(n(n+2))` Find the sum of the convergent series.

`sum_(n=1)^oo4/(n(n+2))` Using partial fractions we can write the n'th term of the series as, `a_n=4(1/(2n)-1/(2(n+2)))`   `a_n=(2/n-2/(n+2))` Now the n'th partial sum is, `S_n=(2/1-2/(1+2))+(2/2-2/(2+2))+(2/3-2/(3+2))+(2/4-2/(4+2))+(2/5-2/(5+2))+............` `S_n=(2-2/3)+(1-1/2)+(2/3-2/5)+(1/2-1/3)+(2/5-2/7)+......` `S_n=(2+1)`  all other terms cancel out `S_n=3` `sum_(n=1)^oo4/(n(n+2))=3`

What were some characteristics of missionary movements in the modern period? What was their relationship with colonialism?

The American missionary movement was influenced by the Puritans' ideal of being "a city upon a hill." They believed that they could be an example to the rest of the world and bring "civilization" wherever they went. This goal brought together the idea of religious proselytizing with the process of building a nation or an empire. In the United States, evangelical Protestants were particularly active as missionaries, and they saw it as their mission to accompany the process of American nation-building as the country expanded west. Presbyterians, Baptists, Methodists, and Mormons were all active in the process of bringing their religions with them in the process of westward expansion. They attempted to proselytize Native Americans and others in the process of moving westward. In the 19th century, missionary activity also spread overseas with the growth of colonialism. In 1810, the American Board of Commissioners for Foreign Missions (ABCFM) was founded, in the exam...

Why was Lyddie fired, according to the agent and the overseer, in Lyddie by Katherine Paterson?

Lyddie was supposedly fired for being immoral, when she was really fired for standing up for Brigid when Mr. Marsden tried to assault her. Lyddie was fired from her job at the factory because she saw Mr. Marsden trying to assault Brigid.  She was not surprised that he would do this, since he had done the same thing to her.  When she was sick with a fever, he had tried to kiss her.  Clearly, he has a habit of taking advantage of the girls he oversees. When Lyddie saw Mr. Marsden and Brigid, she had to act. Lyddie snatched up the fire bucket. It was full of water, but she didn't notice the weight. "Please-no--" She ran down the aisle between the looms toward the voice and saw in the shadows Brigid, eyes white with fear, and Mr. Marsden's back. His hands were clamped on Brigid's arms. (Ch. 20)  Lyddie hits Mr. Marsden with the bucket, which may have been a little extreme but was her best solution under the circumstances.  They run, and Lyddie laughs. Later she regret...

After Gregor's death, what does his family do?

When the Samsa family learns of Gregor's death from the housekeeper, they first confirm it by watching as she moves Gregor's corpse with her foot.  Mr. Samsa thanks God, and all three make the sign of the cross.  They retreat into the parents' bedroom and cry "a little."  When they emerge from the bedroom, Mr. Samsa evicts the three boarders, and the family watches on the landing as the men shuffle away.  They decide that they need some time off, and all three write letters of excuse for themselves from work and school.  The cleaning lady begins to tell them how she has disposed of Gregor's body, but Mr. Samsa cuts her off.  He informs his wife and daughter that he will fire the housekeeper that evening.  They take a streetcar into the country and talk about their future. They decide to move to a smaller, nicer flat, and Grete, the daughter, becomes lively.  The parents recognize her beauty and promise, and the story ends.

What was Wiesel's response to the scene at Auschwitz?

In section three of Night , the Jews of Sighet arrive at Birkenau, reception center for the concentration camp of Auschwitz. After the "selection," Elie and his father believe they are being marched to their deaths. The fires that were foretold by Madame Schächter on the train have come true. Elie witnesses a pit of flames where the bodies of children and even babies are being dumped. The group of men are marched toward it, amidst weeping and prayers. It is during this scene that Elie begins to doubt God. As he hears the prayers of his fellows, he begins to question why he should be thankful to a God who could allow such a thing to happen: For the first time, I felt revolt rise up in me. Why should I bless His name? The Eternal, Lord of the Universe, the All-Powerful and Terrible, was silent. What had I to thank Him for? Miraculously, Elie and his father survive. Rather than the pit, they are marched into barracks and eventually go through the rest of the initiation to the ca...

Based on Chapters 5-9 of Ian Haney López's Dog Whistle Politics: How Coded Racial Appeals Have Reinvented Racism and Wrecked the Middle Class:...

Haney Lopez writes that in the aftermath of the terrorist attacks on September 11, 2001, "dog whistle politics surged anew, with much of the hysterical focus shifting from African Americans to brown immigrants, both Muslim and Mexican" (page 115). Therefore, Arabs, Muslims, and Latino were all targets of dog whistle politics in the U.S. after 9/11. After 9/11, the Bush administration carried out dragnets that targeted Arab Muslims rather than specific individuals, fostering, in the author's words, "the impression that the United States faced a racial threat rather than merely an extremist one" (page 118). In other words, dog whistle politics converted what was a political and security threat into a threat that was racial in nature. While the category of Arab Muslims is not exactly a neat one, as some Arabs do not practice Islam (and many Muslims are not Arab), the category of "Arab Muslim" was simplified in the minds of many Americans as synonymous wi...

How did Social Darwinists tend to view government aid to industries and other institutions?

Social Darwinists were (and are) generally opposed to government aid to anyone , indeed to aid to anyone, at least any aid that is not paid for and in the direct self-interest of the person providing it. They opposed welfare, social insurance, foreign aid, and even public infrastructure. Based (loosely) on Darwin's theory of evolution by natural selection, Social Darwinists argued that the way to achieve the best outcome in any system, be it biological, economic, or social, is to simply let all the different agents fiercely compete with one another, a constant war of all against all, and to the victor go the spoils. They theorized that this would ensure that the ones who win---and therefore the genes and individuals that survive---would be the best and the strongest. They also believed that any attempt to intervene in that competition would ultimately be harmful; by helping those who would otherwise fail or handicapping those who would otherwise succeed, intervention in the natural...

When Atticus went to Montgomery "to read law," what tradition was broken according to the narrative of To Kill a Mockingbird?

When Atticus Finch left Finch Landing for Montgomery in order to study law while his younger brother Jack went to Boston to study medicine, the tradition of male Finches living on Finch's Landing was broken. Only their sister Alexandra remained there.  Scout narrates that her Aunt Alexandra married a rather phlegmatic man, who mostly lay in his hammock by the river watching his trout-lines, quite unlike the ancestral patriarch of the family, Simon Finch, "a fur-trapping apothecary" from Cornwall, England. Simon Finch came to America because of religious persecution. First, he came across the Alantic Ocean to Philadelphia, then down the Atlantic all the way to Jamaica in the Caribbean Sea and on up to Mobile, Alabama, on the Gulf of Mexico. From there, he wandered in a northerly direction from Mobile on the Alabama River about forty miles from the old Spanish settlement of St. Stephens. At this location he established a homestead on the banks of the river, a location nearl...

`int xe^(2x)/(2x+1)^2 dx` Find the indefinite integral

Given to solve, `int xe^(2x)/(2x+1)^2 dx` let `u= xe^(2x) so , u' = e^(2x) +2xe^(2x)` and `v'= (1/((2x+1)^2)) = (2x+1)^(-2)` `v= int (2x+1)^(-2) dx` let `t= 2x+1 => dt = 2dx ` so `v' =t^(-2)` =>  `v= int t^(-2) dt /2`         = `t^(-2+1) /(-2+1) *(1/2)` so v =` (2x+1)^(-2+1) /(-2+1) * (1/2)`  = `-1/(2(2x+1))` by applying the integration by parts we get , `int uv' = uv - int u'v` so, `int xe^(2x)/(2x+1)^2 dx ` =` (xe^(2x))(-1/(2(2x+1))) - int (e^(2x) +2xe^(2x))(-1/(2(2x+1))) dx` = `(xe^(2x))(-1/(2(2x+1))) + int ((e^(2x) +2xe^(2x))/(2(2x+1))) dx` =`(xe^(2x))(-1/(2(2x+1))) +(1/2) int (e^(2x) (1+2x)/((2x+1))) dx` =`(xe^(2x))(-1/(2(2x+1))) +(1/2) int (e^(2x)) dx` as we know `int e^(ax) dx = e^(ax) /a` so, =`-(xe^(2x))(1/(2(2x+1))) +(1/2) (e^(2x))/2 ` = `(-xe^(2x))/(2(2x+1)) +e^(2x)/4 +c`

How were the works of female writers like the Bronte sisters looked upon by 19th century society?

Though the works of the Bronte sisters, and other female writers like Jane Austen, were undeniably good, they were looked upon with some criticism or even disregard during the 19th century. The gender norms of the time prevented most women from attaining higher education or becoming involved in academic pursuits. The Bronte sisters were really exceptional not only for the extent of their education but also their boldness in becoming published authors. During the 19th century, an Englishwoman's highest potential was to become a wife and mother. Any other accomplishments, even becoming a best-selling author, were easily overlooked or simply considered a nice addition to a woman's primarily maternal skill set. The Bronte sisters were aware of the predicament their gender posed for them in society, so for their first publication, they chose to use masculine pseudonyms. After further publications and the rising success of Charlotte's Jane Eyre,  rumors arose that the authors Ell...

`int sec^5x tan^3x dx` Find the indefinite integral

`intsec^5(x)tan^3(x)dx` Let's rewrite the integral as: `intsec^5(x)tan^3(x)dx=intsec^5(x)tan^2(x)tan(x)dx` Now using the trigonometric identity:`tan^2(x)=sec^2(x)-1` `=intsec^5(x)(sec^2(x)-1)tan(x)dx` `=intsec^4(x)(sec^2(x)-1)sec(x)tan(x)dx` Now apply the integral substitution:`u=sec(x)` `du=sec(x)tan(x)dx` `=intu^4(u^2-1)du` `=int(u^6-u^4)du` apply the sum rule, `=intu^6du-intu^4du` `=(u^(6+1)/(6+1))-(u^(4+1)/(4+1))` `=u^7/7-u^5/5` substitute back `u=sec(x)` and add a constant C to the solution, `=(sec^7(x))/7-(sec^5(x))/5+C`

Why did Jamestown change from a charter colony to a royal colony?

A charter colony is a self-governing entity in which the king grants a charter to a company to establish a colony in the Americas.  The king would do this so that he did not have to spend the country's money on a risky endeavor.  Companies like the Virginia Company, would seek investors for the project and establish colonies like the one at Jamestown.  The king did not have any political authority over this entity.  A royal colony, on the other hand, was ruled directly or indirectly by the king.  Jamestown was established as a charter in 1606 and was granted by King James I.  The king wanted the colonists to convert the natives to Christianity, while the company hoped to reap a profit from gold.  What the company found was that the region did not have vast reserves of gold and it was difficult to even sustain the population with food and protect itself from Indian attacks.  After a vicious string of Indian attacks known as the Powhatan Uprising, the king revoked the charter in 1624...

In The Crucible, how is Reverend Hale's character development significant to the play as a whole?

Reverend Hale is one of the few characters who transforms throughout the play. He starts as a firm believer in witchcraft, and by the end of Act III he has completely recanted his position and even tries to save the holdouts from execution. He represents the ability to look past bandwagon beliefs and form personal conclusions based on knowledge and observation rather than blind bigotry. In an appeal to the immovable Danforth, Hale pleads, "Excellency, it is a natural lie to tell; I beg you, stop now before another is condemned! l may shut my conscience to it no more - private vengeance is working through this testimony! From the beginning this man has struck me true. By my oath to Heaven, I believe him now." While Hale can be credited for no longer turning a blind eye, his earlier convictions proved deadly for many a character, which shows the dangers of accepting the world around you before making investigations. This can be related back to the real world with Miller's m...

How is Deborah Hall described in Same Kind of Different as Me?

This inspiring true story is told by the two men who lived it—Ron Hall and Denver Moore. Ron, a Dallas art dealer, and Denver, a homeless man who grew up picking cotton in virtual slavery in Louisiana, become unlikely friends because of Ron’s wife Deborah. Ron describes his wife in her younger days as “a bookworm and as neat as a preacher’s wife on Sunday.” Deborah’s character is evident in her reaction to finding out her husband had had an long-time affair. Speaking to the other woman on the phone, Deborah takes ownership of her part in the breakdown of her relationship, forgives the woman, and then tells her husband “You and I are now going to rewrite the future history of our marriage.” She promises to forgive her husband and never bring up the affair again. She proves to be calm in the face of adversity, forgiving in the face of betrayal. Deborah’s kind spirit shines when she convinces her husband to volunteer with her at the homeless shelter where they meet Denver. Denver describe...

What effect did Depth Charges have on WW1 and how did they change warfare?

The depth charge was invented in 1916 by British naval engineer Herbert Taylor.  His "hydrostatic pistol" could be launched out of a ship and detonated at a predetermined depth, hence the name "depth charge."  Herbert designed this weapon to combat the U-boat menace against British shipping.  The depth charge was designed to cause submarines to leak and force them to surface, where they could be shot or rammed by surface vessels.  During WWI, depth charges are credited with destroying twenty submarines.  Germany utilized 390 submarines during WWI.   The depth charge was a defensive counter against submarines who did not have to surface in order to sink ships.  By the end of the war, Americans developed ways to launch depth charges farther from ships thus placing them closer to their targets.  Depth charge technology improved and more submarines were destroyed due to depth charges than by mines in WWII.  Submarines in WWII were also built sturdier in order to better ...

Why is it reasonable to describe a large ecosystem like a biome as being in equilibrium, but not a very small ecosystem like a rotting log?

An ecosystem is an interdependent system comprised of living, nonliving, and dead components. Nonliving elements, such as light from the sun and carbon, are essential for plants ability to synthesize carbohydrate energy. As organisms die, their nutrients are utilized by other members of the ecosystem community. Fungus, in particular, is a decomposer that aids in breaking down dead matter. A log is part of a dead tree. It can be home to organisms such as moss, fungi, mold, and bacteria. However, it does not contain the nonliving elements that are essential to create a full cycle of energy exchange between living, nonliving, and dead materials. Without sunlight, moss is unable to photosynthesize the energy it needs to thrive. Without oxygen, bacteria cannot metabolize the carbohydrates found in the chlorophyll of a dead plant. Although a log can be a member of an ecosystem community, it does not contain all of the components necessary to be its own ecosystem.

How does imagery develop the setting in the opening paragraphs of the story "The Flowers"?

The opening paragraphs of "The Flowers" portray a pastoral scene of rustic and natural beauty and peace.  Walking outside at a sharecropper's farm, Myop delights in nature: The air held a keenness that made her nose twitch. The harvesting of the corn and cotton, peanuts and squash, made each day a golden surprise that caused excited little tremors to run up her jaws. This young girl is much like Rousseau's Natural Man who is spiritually and mentally free since he is not tied to any of the artificial needs that depict modern society. Myop delights in the music of her stick tapping on the fence, the sun on her face, the "tiny white bubbles" of the stream against the rich, black soil. These opening paragraphs depict the beauty of pristine nature with visual and auditory imagery, such as the pretty "silver ferns" and wildflowers, along with the sounds of her stick tapping out a tune on the wooden fence. For instance, one passage describes Myop discover...

What are some life lessons from the play The Lion and the Jewel?

Wole Soyinka incorporates several important life lessons throughout his play The Lion and the Jewel . Soyinka uses Sidi's behavior and plight to suggest that overconfidence, vanity, and pride can have adverse effects. Sidi is infatuated with her looks and becomes arrogant after gaining fame from her images in the magazine. She disrespects the Bale and decides that she will mock him, but ends up losing her virginity to him. Another important lesson Soyinka teaches the audience throughout his play, is that rumors are often false, and believing them can negatively affect a person's perspective. Sadiku spreads the false rumor that Baroka is impotent, and Sidi accepts the gossip as truth. It turns out that Baroka is not impotent, and the rumor was false. Sidi thinks that she is safe from the Bale's advances because he is impotent, which allows the Baroka the opportunity to woo Sidi. Soyinka also teaches the audience that people often have other intentions, and we should attemp...

What does it mean if I got high scores on psychopath or borderline personality self assessments?

Online quizzes and personality tests can be fun, but should not be assumed to be accurate or used as a diagnostic tool.  The high scores you obtained on the stated websites are certainly not accurate according to any true measurement tools.  The "psychopath" test you posted is hosted by a person who only has a bachelor's degree and is far from qualified to produce, document or treat any mental health disorder.  Also, the host is from India and it appears based on the syntax of the questions and the rest of the website that English is a second language.  The construct of questions on true testing instruments must be very precise in order to be accurate. The Diagnostic and Statistical Manual of Mental Disorders (DSM-V ) does not have a category for "psychopath".  The only instrument used to diagnosis people who demonstrate psychopathic tendencies is the Psychopathy Checklist-Revised (PC-R).  Mental health experts have been arguing for years whether a true psychopa...

Why did people's daily lives change in the decades following the Civil War?

The daily lives of Southerners changed more drastically than those of Northerners in the years following the Civil War.  The Southerners faced personal financial difficulties, as well as a severely weakened economy.  The Northerners experienced a period of prosperity after the Civil War. The South once again joined the Union after the Civil War.  The Confederate States were dissolved and the Southern states became part of the United States again.  Slaves were freed, which caused significant economic changes in the South.  The agricultural industry had relied heavily on slave labor.  Slaves had planted and harvested crops on large plantations.  Planters had to hire laborers for the first time after the war ended.  Many were already suffering economic ruin from the war and did not have the cash to pay workers.  Sharecropping became a common solution to this lack of funds.  Many formerly wealthy planters became poor.  Rather than produce crops like tobacco and cotton on smaller scales, th...

Is solubility increased by stirring or adding more solute?

Solubility can be thought of as the maximum amount of a solute that can dissolve in a solvent, at equilibrium. Remember that a solute is a substance that is dissolved, while solvent is a substance in which the dissolution takes place.  Since solubility is the upper limit, it cannot be increased by stirring the solution or by adding more solute. Stirring the solution will simply increase the rate of dissolution, but not the maximum amount of solute that can be dissolved. Stirring spreads the solute uniformly in a solvent and increases the number of interactions between solute and solvent molecules. This causes a higher rate of dissolution. That is why we stir hot tea after adding sugar to it. Increasing the amount of solute, beyond the solubility limit, will not help and all the extra solute will be left out of the solution. Another method to increase the rate of mixing is by providing increasing the surface area of the solute, say by grinding or crushing it into smaller fragments.  It ...

What are the industry and leisure classes in Veblen's The Theory of the Leisure Class and how do they compare to Marx’s two-class model of...

Veblen believed the leisure class was made of people who did not need to do industrial work and who had types of occupations that were of higher status. He wrote in The   Theory of the Leisure Class :  The upper classes are by custom exempt or excluded from industrial occupations, and are reserved for certain employments to which a degree of honor attaches. (2) While the industry class toils in industrial work (that is, work related to providing for the material needs of people), the leisure class occupies jobs in fields such as government, religion, warfare, learning, and sports in what Veblen called the "barbarian" culture that preceded modern culture. He believed these distinctions between the industry and leisure class continued in modern times.  Marx, on the other hand, believed in two classes: the proletariat and the bourgeoisie. The bourgeoisie own the means of production (which are land, labor, and capital), while the proletariat must sell their labor to survive. Vebl...

What type of government has a powerful parliament and a weak king?

Constitutional monarchies divide power between the monarch (king or queen) and the parliament according to fixed rules laid out in the nation's constitution. As democratic political ideas have spread throughout the world, constitutions have, generally, been altered to allot more power to citizens (via a strong parliament) and less to the monarchy. Thus many modern constitutional monarchies are essentially democratic (or republican) in nature but retain the monarchy as a symbolic head of state for the sake of tradition. The United Kingdom, which is currently nominally governed by Queen Elizabeth II, is one example of this trend. However, it is important to understand that "constitutional monarchy" does not necessarily mean a strong parliament and a weak monarch. Historically, constitutional monarchies often exhibited a power struggle between the parliament and the monarch, and the power of each branch ebbed and flowed.

In Lee's To Kill a Mockingbird, what is made clear during Mayella Ewell's testimony?

In Lee's  To Kill a Mockingbird , Mayella Ewell's testimony in court is found in chapter 18. Based on Mayella's performance on the witness stand, it becomes clear that she is a melodramatic, uneducated, socially ignorant, and abused liar. Most importantly, though, because of Tom Robinson's crippled left arm, there is no way that he could have blackened her right eye. For example, after Mayella claims that Tom blackened her right eye, Atticus has Tom stand up to show her and the courtroom that his left arm is crippled. Scout describes this revelatory moment in the following passage: "Tom Robinson's powerful shoulders rippled under his thin shirt. He rose to his feet and stood with his right hand on the back of his chair. He looked oddly off balance, but it was not from the way he was standing. His left arm was fully twelve inches shorter than his right, and hung dead at his side. It ended in a small shriveled hand, and from as far away as the balcony I could see...

In the play On Golden Pond, what is the symbolism of the dead loon that Billy catches on his fishing line? What character does the loon symbolize...

Ernest Thompson’s 1979 play On Golden Pond , later adapted to film, focuses on an aging couple, Norman and Ethel Thayer, who return every year to their cabin on Golden Pond. Norman, whom we eventually learn has dementia-like memory issues and a heart condition, is seemingly obsessed with the process of dying and death, a theme that is brought up early in the play: Norman: Maybe he was trying to kill himself. Maybe he wants to be cremated. Maybe he got    cancer or termites or something. Ethel: Are you hungry, darling? Norman: No. It wouldn’t be a bad way to go, huh? A quick front flip off the mantel, a bit of a kick at the last minute, and end up right in the fire. Nothing to it.  Ethel: Shut up, Norman!  Norman: When my number’s up, do that for me, would you? Prop me up on the mantel, and point out which way is down. I may even try for a full gainer with a half twist.  Ethel: Norman Thayer, will you shut up? Your fascination with dying is beginning to frazzle my good humor.  Norman: I...

Want the Series converges, and its sum, if there is

Evaluate ` sum_(n=2)^(infty)sqrt(n)/(ln(n)) ` This series does not converge. If the series converges, then the limit of its nth term must be 0 as n grows without bound. Using L'Hopital's rule we show that the limit does not exist: `lim_(n->oo)sqrt(n)/(ln(n))=lim_(n->oo)(1/(2sqrt(n)))/(1/n) ` `=lim_(n->oo)n/(2sqrt(n))=lim_(n->oo)(sqrt(n))/(2) = oo `

What is the meter of E.E. Cummings' "Next to of course god America"?

This work does not fall into traditional repeated feet or meter.  Instead, it both mocks and replicates the speech tones of an insincere political public rant, meant to impress the audience with a patriotic message, but in actuality exposing the hypocrisy of the speaker.  While it is possible to divide the lines into iambs, trochees, etc., the rhythm of speech is not illuminated by doing so.  Likewise, there is no line meter or rhyme that connects this poem with any traditional form such as a sonnet or limerick.  By dividing the speech into seemingly arbitrary lengths and by eliminating punctuation, Cummings manages to expose the hollowness of the sentiment.  It is by means of unorthodox meter that Cummings shows how the ambient tone of a speech can obfuscate the hypocrisy, making the message sound spontaneous and sincere even when it is really just phony patriotism.

What is Vera's perspective in "The Open Window"? What is Vera's perception of Framton? How might Vera describe Framton to some of her friends?

In Saki's "The Open Window," Vera plays a practical joke on a stranger named Framton Nuttel. First, Vera would probably tell her friends that a timid and nervous man entered her home and she couldn't resist playing the joke on him. After discovering that Mr. Nuttel didn't know anyone from around those parts, she would boast about how easy it was to draw him into the tragic story of her uncles' apparent disappearance in a bog three years earlier. Vera would probably recount to her friends just how perfectly she set the gloomy scene for Nuttel just before he told her aunt of his fragile state of health. Then, when everyone heard Uncle Ronnie singing, which was a definite sign of the men's return from hunting, or from the dead, Vera would brag to her friends about her dramatic performance to make the man believe that she thought she was seeing ghosts. "The child was staring out through the open window with dazed horror in her eyes. In a chill shock of na...

In Coelho's The Alchemist, what happens when the alchemist and the boy are both taken into the military camp?

When the alchemist and the boy are both taken to the military camp, the alchemist uses all of Santiago's money that he has saved for years to buy them three days time to save their lives. The alchemist tells the chief of the tribe that the boy is an alchemist who could destroy their whole camp by one swift command of the wind. The chief calls his bluff by saying that he wants to see the boy do that. The alchemist says that he needs three days, but he won't destroy the camp; he will only turn himself into the wind to demonstrate his powers. Santiago can't believe what the alchemist just put him up to prove. He doesn't know how to turn himself into the wind!  Over the course of the three-day grace period, Santiago talks to the desert, the wind, and the sun. They all can't help him. He discovers that he needs to talk to the Soul of the World in order to pull off this trick. As a result, he learns that he is a part of the Soul of the World and that same soul is a part o...

`int 2/(9x^2-1) dx` Use partial fractions to find the indefinite integral

`int 2/(9x^2-1)` To solve using partial fraction method, the denominator of the integrand should be factored. `2/(9x^2-1) = 2/((3x-1)(3x+1))` Then, express it as sum of fractions. `2/((3x-1)(3x+1))=A/(3x-1)+B/(3x+1)` To solve for the values of A and B, multiply both sides by the LCD of the fractions present. `(3x-1)(3x+1)*2/((3x-1)(3x+1))=(A/(3x-1)+B/(3x+1))*(3x-1)(3x+1)` `2 = A(3x+1) + B(3x-1)` Then, assign values to x in which either (3x+1) or (3x-1) will become zero. So plug-in x=1/3 to get the value of A. `2=A(3*1/3+1) +B(3*1/3-1)` `2=A(1+1) + B(1-1)` `2=A(2) + B(0)` `2=2A` `1=A` Also, plug-in `x=-1/3` to get the value of B. `2=A(3*(-1/3)+1)+B(3*(-1/3)-1)` `2=A(-1+1)+B(-1-1)` `2=A(0) + B(-2)` `2=-2B` `-1=B` So the partial fraction decomposition of the integrand is `int 2/(9x^2-1)dx` `= int (2/((3x-1)(3x+1))dx` `= int (1/(3x-1)-1/(3x+1))dx` Then, express it as difference of two integrals. `= int 1/(3x-1)dx - int 1/(3x+1)dx` To evaluate each integral, apply substitution method. `u=3x...

What is Elie's job in Buna?

After three weeks at Auschwitz, Elie and his father are marched to the work camp at Buna. After a four hour walk they arrive at a camp which Elie describes as looking as though it had gone through an "epidemic," with not many people around. Elie and his father are installed in what was called the "orchestra block" because there were several musicians living there. One of the musicians, a Polish man named Juliek, explains to Elie that they work in a warehouse and that the work was not "difficult or dangerous." He does, however, warn Elie about the "kapo," named Idek, who sometimes had "bouts of madness." The work consists of counting "bolts, bulbs, and small electrical fittings." Elie is told to take his time at the work but to beware of the SS watching. He is able to work next to his father. There were also "Polish civilians" and a "few French women" in the warehouse. One time they were also required "...

If you wanted to give a different ending to the novel David Copperfield by Charles Dickens, what would it be and why?

What has always bothered me about David Copperfield is that it is too idealistic.  Dickens presents a picture of David marrying a girl who is really all wrong for him, but then David is released from the situation when she dies in childbirth.  Dora is immortalized as the perfect young beauty.  It always seemed to me that Dickens just dispatched the wrong girl so that David could rectify his mistake and marry the girl he should have married in the first place, Agnes.   In Victorian times, divorce was not an option.  It would have been scandalous.  David marries the silly, pretty Dora Spenlow because he is infatuated with her.  It is not a deep love.  He has more of a connection with Agnes.  Yet Agnes is not the stunning beauty that Dora is, so he doesn’t see it.  He marries Dora.  Then when Dora dies, he goes and marries the more comfortable Agnes.   David did love Dora, in his own way.  He says she captured him.  I heard a voice say, 'Mr. Copperfield, my daughter Dora, and my daug...

In what way does the storm inspire Huck? Why is he not afraid of the storm?

In asking this question, I'll assume you're referring to the storm that occurs in Chapter 9 ("The House of Death Floats By"). When the storm begins in this chapter, Huck and Jim are sitting in the shelter of a cave, watching the tumultuous spectacle. However, as intense as the storm is, Huck seems to be primarily inspired by the raw, wild beauty of the weather and nature. Take, for instance, the following passage: It was one of these regular summer storms. It would get so dark that it looked all blue-black outside, and lovely;... and next, when it was just about the bluest and blackest--- fst!  it was bright as glory, and you'd have a little glimpse of tree-tops a-plunging about away off yonder in the storm, hundreds of yards further than you could see before... (55) From this passage, we can see that Huck is inspired by the wild beauty of the storm that he's witnessing. There's a kind of freedom out there in the natural world, it would seem, that is exemp...

What were some cultural advantages that allowed Britain to develop industry?

It is still debated among economists and historians why exactly Britain was the first country in the world to industrialize, and if you ask different people you'll get different answers. However, there are certain definite advantages Britain had that may have contributed to their early industrialization: 1. Britain was already rich by world standards at the time. While their level of income seems small to us today, it was larger than that of most other countries in the world; people had enough income to be consumers and investors rather than simply working to survive. 2. Britain has one of the most stable, long-standing governments in the world. Whereas most countries go through a revolution every few generations, Britain has undergone a process of gradual reform that has preserved the same core---a constitutional monarchy with Parliament as the primary governing body---for some one thousand years. Even by the start of the Industrial Revolution Britain had already been in its curre...

What impact did Qutb’s writings and teachings have on Ayman al-Zawahiri?

Ayman al-Zawahiri is currently the head of the Islamist international terrorist organization Al Qaeda, having taken power after Osama bin Laden was killed by US troops in 2011. Before that he was very important in Al Qaeda, and the source of much of its ideology and public image. One of his central influences was the Egyptian literary critic, political philosopher, and public intellectual Sayyid Qutb, who advanced a modernized fundamentalist interpretation of Islam that called for direct---and, if necessary, violent---action by loyal Muslims against their oppressors, whom he perceived to be primarily led by the United States, which he saw as a secularized "spiritual wasteland" where people had lost religion and thereby lost their way. Qutb was further radicalized when he was tortured in an Egyptian prison, and became a kind of philosophical voice for radical Islamism. Al-Zawahiri read many of Qutb's works, and often quoted him and spoke of him with great praise. Qutb appe...

In Shakespeare's Romeo and Juliet, what about Juliet should have told Romeo she was not dead?

In the final scene of Shakespeare's Romeo and Juliet , Romeo arrives at the Capulet tomb to commit suicide inside the vault with Juliet. Outside the tomb he encounters Count Paris, who believes Romeo is disrespecting the Capulet monument. The two fight and Romeo kills Paris, dragging him inside next to the Capulet dead, including Tybalt and Juliet. As soon as Romeo sees Juliet he comments, as he has often done before, that she lights up the darkness of the tomb. He further suggests that Juliet still appears to be quite alive, with red lips and cheeks, and no hint of the pale complexion of the dead. Had Romeo examined her more closely he might have realized that she still lived: Death, that hath sucked the honey of thy breath, Hath had no power yet upon thy beauty. Thou art not conquered. Beauty’s ensign yet Is crimson in thy lips and in thy cheeks, And death’s pale flag is not advancèd there. The signs are not misleading, but Romeo is overcome with grief and bent on suicide. Juliet...

Other than Romeo and Juliet themselves, what three characters have contributed to their deaths in Romeo and Juliet?

Three characters who contribute to the deaths of Romeo and Juliet are Friar Lawrence, Tybalt, and Lord Capulet. Friar Lawrence Initially, Friar Lawrence warns Romeo against impetuous behavior, but he himself acts impulsively as he abruptly decides to perform the marriage ceremony for Juliet and Romeo in the belief that their union will be a catalyst for the ending of the feud. For this alliance may so happy prove, To turn your households' rancour to pure love. (2.1.91-92) However, his plan is flawed because he performs the marriage in secret and he does not consider the fact that the resurgence of the animosity may easily prevent the two families from considering any reconciliation at this time. Instead, he should perhaps have urged Romeo to wait so that he could, perhaps, meet with the parents and ameliorate their relationship. Friar Lawrence has contributed further to the tragedy of Romeo's and Juliet's deaths with his surreptitious plan of faking Juliet's death. His ...

What are Columbus's thoughts about his journey and mission?

The prevailing theory about Columbus' motivation in journeying west into unknown territory is that he desired to gain wealth and glory for himself and Spain. However, as we know, he reached America, not Asia as he intended. It did not take long before other Europeans realized America and Asia were separate continents. Nevertheless, Columbus remained resolute in his assertion that he had reached India, or at least someplace nearby. Many people find Columbus' resistance to the "New World" concept puzzling; as an explorer, for instance, he could have received far more glory for finding an entirely new continent than for finding a new route to Asia.  However, an alternative theory about Columbus' motivations might help explain this. According to some recent historians , Christopher Columbus believed God had called him to lead a religious crusade against the Muslims, who had recently (1453) conquered the previously Christian stronghold of Constantinople. To finance thi...

What are the customs and traditions of the UAE?

To discuss all of the customs and traditions of the United Arab Emirates would require an entire book, if not more than one, but I can certainly describe a few cultural practices here which are distinctive to the UAE. A custom may be thought of as particularities in everyday behaviors and actions that is shared by an ethnic or national group. Traditions are slightly different because they are the enactment of rituals within a particular space and time. Sometimes the two can overlap, as in the Arab custom of hospitality. In the Arab world, and especially the UAE, hospitality and generosity are taken very seriously. If you were to visit a person's home or place of work in the UAE, they would demonstrate this custom of hospitality through the tradition of offering you coffee or tea and perhaps something sweet to eat. It is very unusual for even a casual visit to not involve sitting down to share something to eat and drink.  A custom which some Westerners may find unusual involves hand...

In The Crucible by Arthur Miller, what is the effect of verbal, situational, and dramatic irony?

As is the case with most irony, situational and dramatic irony is used in The Crucible to increase tension and heighten suspense.  First, the situational irony of having children calling the shots in the witch trials undermines the authority of adults who should and do know better, and it increases tension for readers because these children are essentially in charge of who lives and who dies in Salem.  As Proctor says, "now the little crazy children are jangling the keys of the kingdom [...]!"  The children's accusations overwhelm common sense, reputation, trust, everything that has always mattered.  That so much faith is put into the words of children, children who are fickle, easily manipulated, or often lie, creates irony of situation because it should be reasonable, unemotional, objective adults who are in charge of life or death scenarios (if anyone must be).  Dramatic irony also increases tension for the audience, building up to the climax of the play.  Parris and ...

In The Story of My Life, how did the introduction of the word "water" awaken Helen Keller's soul?

Miss Sullivan came to the Keller home to be six-year-old Helen Keller's teacher.  Helen had suffered from a severe illness shortly before her second birthday.  The illness left her deaf and blind.  Miss Sullivan's primary goal when she arrived was to teach Helen how to communicate.  She did so by attempting to teach Helen the manual alphabet.   The manual alphabet is a form of communication.  Signed letters are pressed into a person's palm.  The person feels the form of the letters in their palm and recognizes the words being spelled. Repeatedly, Miss Sullivan spelled words into Helen's palm while presenting the child with the object being described.  For example, she handed Helen a doll and spelled the word into her hand.  Helen thought it was a game and did not understand.  She did not yet grasp that everything around her had a name. One day, Miss Sullivan took Helen out for a walk.  They came upon a water spout, and the teacher held the little girl's hand under t...

`int (x^3-x+3)/(x^2+x-2) dx` Use partial fractions to find the indefinite integral

`int(x^3-x+3)/(x^2+x-2)dx` The given integrand is a improper rational function, as the degree of the numerator is more than the degree of the denominator. To apply the method of partial fractions,first we have to do a division with remainder. `(x^3-x+3)/(x^2+x-2)=(x-1)+(2x+1)/(x^2+x-2)` Since the polynomials do not completely divide, we have to continue partial fractions on the remainder. We need to factor the denominator, `(2x+1)/(x^2+x-2)=(2x+1)/(x^2-x+2x-2)` `=(2x+1)/(x(x-1)+2(x-1))` `=(2x+1)/((x-1)(x+2))` Now let's create the partial fraction template, `(2x+1)/((x-1)(x+2))=A/(x-1)+B/(x+2)` Multiply the above equation by denominator, `=>2x+1=A(x+2)+B(x-1)` `2x+1=Ax+2A+Bx-B` `2x+1=(A+B)x+2A-B` Equating the coefficients of the like terms, `A+B=2`    ------------------------(1) `2A-B=1`  -------------------------(2)`` Now we have to solve the above two linear equations to get A and B, Add the equations 1 and 2, `A+2A=2+1` `3A=3` `A=1` Plug in the value of A in equation 1, `1+B=2...

In "The Lottery" by Shirley Jackson, why did the lottery officials and people prefer a male from the family to draw?

One of the fascinating aspects of Shirley Jackson's short story, "The Lottery," is the strong adherence to tradition evinced by the actions and words of the townspeople before, during, and after the lottery. Not only are the traditions of the lottery followed uncritically, what conversation that does occur among characters concerning the traditional nature of the lottery is primarily to decry other places that have slipped in following tradition or that have discontinued the lottery entirely. Further, things that disrupt the strict adherence to tradition, such as Tessie Hutchinson's futile protestations over her fate, lead to discomfort and unease among the townsfolk. One such tradition apparent in the story is that the head of household is responsible for drawing in the first stage of the lottery, the one that determines from which household the sacrifice will be taken. It is also apparent that, traditionally, the head of household duties are performed by the eldest ...

When was the story "Thank You, M'am" by Langston Hughes written?

“Thank you, M’am” was written in 1958.  The story is about a teenage boy named Roger who tries to steal the purse of a very tough lady named Mrs. Luella Bates Washington Jones.  She does not let him steal her purse, but instead of calling the police she takes him home. Mrs. Jones wants to talk to Roger.  She tells him that she was young once, and understands what he is going through.  She feels sorry for him because he has no one at home.  When he tried to steal her purse it was late at night, and he hadn’t eaten and his face was dirty. Roger considers leaving, but doesn’t.  He stays and listens to Mrs. Jones.  He even asks her if she needs anything.  She tells him that if he wanted money, all he had to do was ask.  The money was for blue suede shoes.  Roger wants to thank her as he is leaving, and knows he will never see her again.

What impact did anti-slavery groups have?

Anti-slavery groups had an impact in bringing slavery to an end. There were several anti-slavery groups that existed in the 1800s. William Lloyd Garrison founded the New England Anti-Slavery Society and the American Anti-Slavery Society. His newspaper, called The Liberator , advocated for freeing the slaves. His newspaper spread the word about ending slavery. Sarah and Angelina Grimke grew up on a plantation as daughters of a plantation owner. When they got older, they spoke about and lectured about ending slavery. They wrote a book titled American Slavery As It Is . They also freed some slaves they received when their mother died. Harriet Tubman, Fredrick Douglass, and Sojourner Truth also were part of the anti-slavery movement. Fredrick Douglass wrote an anti-slavery newspaper called the North Star . Sojourner Truth spoke against slavery. Harriet Tubman was involved with the Underground Railroad. This was an organized method to get slaves from the South to freedom in the North. The e...

How does ethics limit the natural sciences?

Development of various technologies affect people and the environment in a lot of way. For instance, in the biomedical field (biosciences), the development of drugs require testing on animals and humans before they are considered viable treatment options. In biotechnology, companies might need to expand and take up land, necessitating deforestation to acquire more lot for expansion. These simple considerations all deal with ethics. Biomedical scientists cannot just give an untested drug to a person to see what happens, or lie to the person about possible side effects. Land cannot just be bought regardless of its effect on the environment or communities for a laboratory to be expanded. Ethics consists of a set of values and beliefs long believed and accepted by a culture or in the case of some universally accepted by most of the world's population - for example, murder is not acceptable. Obviously, science is not immune to any ethical questions such as whether murder is acceptable, ...

Can you summarize the poem, "The Phenomenal Woman" by Maya Angelou?

Maya Angelou's "Phenomenal Woman" describes a woman who has a certain  je ne sais quoi.  This is a French expression used to convey a quality that one senses about another without being able to exactly describe it. In Angelou's poem, the speaker initially states that prettier women than she "wonder where my secret lies" because they do not know how to define it. Indeed, the speaker possesses a quality that attracts men without objective explanation because she is not "cute or built to suit a fashion model's size." Yet, while others may not be able to define her feminine magnetism, the speaker feels that she can. Put simply, she defines herself: I'm a woman Phenomenally. Phenomenal woman, That's me. In the second stanza, the speaker expands upon her definition of herself as a "Phenomenal woman" who causes men to stand or even kneel in awe of her when she enters a room. Some even "swarm" around her as bees to a hive. T...

What is a summary of Silas Marner by George Eliot?

Silas Marner, by George Eliot, tells the story of its titular character: a weaver who lives in the slum of Lantern Yard. Silas is wrongly accused of stealing from the Calvinist congregation he belongs to while he is taking care of the church's ill deacon. His wife leaves him to marry his best friend, who is strongly implied to be the one who framed Silas. He decides to leave Lantern Yard and travel south to a village called Raveloe, where his money is stolen by a young man named Dunsey Cass, who then disappears. One night, a child wanders into Silas' house, and he follows her foot tracks in the snow back to her mother, who is lying dead on the ground. The woman is Molly Farren, the estranged, opium-addicted wife of Dunsey's older brother Godfrey Cass. For Godfrey, the death is convenient, because it frees him to marry another woman named Nancy. Silas decides to adopt the child, names her Eppie, and raises her. One day, Dunsey Cass's skeleton is discovered with the gold ...

What happened when Jonas's number should have been called and how did Jonas react in The Giver?

When Jonas’s number is called, he is skipped.  Jonas thinks he has done something wrong and is embarrassed.   The Ceremony of Twelve is the most significant day in a child’s life.  It is the day he takes the first steps to becoming an adult, because he receives his assignment.  Children in Jonas’s community do not choose their own jobs.  The community chooses for them.  Jonas has no idea what his assignment is going to be.  The children are closely watched by Elders for the years leading up to the ceremony.  The Elders review their volunteer hours and talk to their teachers.  They base the assignment on each child’s abilities, intelligence, and interests.  Jonas has not concentrated his hours in one place.  When it is Jonas’s turn at the ceremony, something extraordinary happens.  All children born in a year are assigned a number.  Jonas is number 19.  However, the Chief Elder calls number 20 after number 18.  She skipped me, Jonas thought, stunned. Had he heard wrong?  No. There was a...

Why is Reverend Parris praying at the beginning of Act One?

The Crucible  opens in the upper bedroom of a home in Salem, Massachusetts. We find Reverend Parris knelt in fervent prayer at his daughter's bedside. Betty, who is ten years old, has come down with some mysterious illness. It seems that she cannot wake, and an assistant from the local doctor arrives to say that unfortunately no medicine can be found for her. Reverend Parris fears that his daughter has been cursed, or "witched," after dancing in the forest. The Reverend accuses his niece Abigail of having tricked Betty into performing a rite of witchcraft in the forest, and now Betty has been overtaken by some spirit. The rumor of Betty's illness having been caused by witchcraft quickly spreads, with people beginning to gather in and outside the house to demand answers.

Approximately how many meters below the earth's surface is potable ground water found?

That very much depends on where you look. The depth at which stable water exists underground is called the water table (formally it is defined as the surface where water pressure is equal to atmospheric pressure). The distance you have to dig from the surface to reach the water table is called the depth-to-water. The depth-to-water varies tremendously; in some places you don't have to dig at all, and water bursts forth from the surface (0 meters); in others (mountains, typically) you may have to dig as far down as 400 meters. A more typical value is about 10 meters. The water table can also change, and for a long time now water tables around the world have been getting lower and lower as people have drawn out more groundwater than is replenished by natural forces. If this trend continues, many places are going to run out of accessible groundwater, which will be very bad for the millions of people who depend upon wells for their drinking water.

`y = sqrt(x) , 0

Given `y=sqrt(x)` ,and to find the volume of the solid of rotation about x-axis, So, this can be solved using the shell method. And is as follows, `y=sqrt(x)` =>`x=y^2` and the `0<=y<=1` these are the limits of y now in the shell method the volume is given as , `V= 2*pi int _c ^d p(y)h(y) dy` here p(y) is the average radius about x axis =y and h(y) is the function of height`=y^2` and c=0 and d=1 as the range of y so, the volume is: `V=2*pi int _c ^d p(y)h(y) dy` =`2*pi int _0 ^1 (y)(y^2) dy` =`2*pi int _0 ^1 (y^3) dy` =`2*pi [y^4/4] _0 ^1` `=2*pi[[1/4]-[0]]` =`pi/2` is the volume