SOLUTION TO HOMEWORK PROBLEMS Chapter-4: MOTION IN TWO DIMENSIONS 1 A particle starts from the origin at t = 0 with a velocity of 6.0[pic] m/s and moves in the xy plane with a constant acceleration of (-2.0[pic] + 4.0[pic]) m/s2. At the instant the particle achieves its maximum positive x coordinate‚ how far is it from the origin? [pic] 2 At t = 0‚ a particle leaves the origin with a velocity of 5.0 m/s in the positive y direction. Its acceleration is given by [pic] = (3.0[pic] - 2.0[pic])
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gibberish whenever there is a camera or a reporter nearby to capture it. However‚ what he never seems to realize is that for every racially biased supporter‚ there are ten others who are not allowed to tell their own side of the story. The Book of Unknown Americans is a novel which allows these ten others to tell their stories and contradict the preconceived notions that White America has formed about them. Cristina Henriquez uses the characters of Gustavo Milhojas and the Rivera family to discuss
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Chemical T ests for Unknowns Chemical tests have been developed as a means of identifying what functional groups are present in an unknown compound. Since IR and NMR spectroscopy has been developed‚ they are no longer critical to unknown analysis‚ but they can still be useful for confirming what you have determined by spectroscopy. Some of them look cool too! In order for a chemical reaction to work as a chemical test‚ it must 1) create a visible result (a color change‚ a precipitate‚ etc)
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Identifying an Unknown Aldehyde or Ketone Introduction The purpose of this lab is to identify an unknown aldehyde or ketone substance using chemical tests. The chemical tests used in this experiment are solubility‚ Schiff‚ Bisulfite‚ and Iodoform tests. Also‚ a 2‚4-dinitrophenylhydrazone derivative synthesis reaction will be completed from which a melting point will be obtained. The chemical test results and the melting point analysis will be compared to the table of compounds given to find the unknown’s
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Auschwitz: Overview of the Concentration Camp The Holocaust was one of the most horrifying crimes against humanity. "Hitler‚ in an attempt to establish the pure Aryan race‚ decided that Jews‚ Poles‚ Soviet prisoners of war‚ Roma (Gypsies)‚ and homosexuals amongst others were to be eliminated from the German population. One of his main methods of exterminating these "undesirables" was through the use of concentration and death camps. In January of 1941‚ Adolf Hitler and his top officials decided
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Identification of Unknown Organic Compound by Melting Point (M.P)‚ Boiling Point (B.P) and Infrared Spectroscopy Methods and Background The main objective of this lab is to identify the given unknown organic compounds with various methods. Identification of an unknown compound is important to perform through the process of melting point (M.P)‚ boiling point (B.P) and Infrared spectroscopy (I.R). Index of Hydrogen deficiency (IHD) and elemental analysis makes an experiment more efficient in
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The Effect of Salt Concentration on Osmosis in Potato Cells We should first explain what Osmosis is. It’s a passage of water from a region of high water concentration through membrane to a region of low water. Semi membrane is a very thin layer of material‚ which allows some things to pass through them but prevent other things from passing through. The cells allow small molecules like Oxygen‚ water‚ Carbon Dioxide‚ Ammonia. But will not allow larger molecules like Sucrose‚ Starch‚ or protein‚ etc
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Anna Wright Mrs. Buckley AP English 20 February 2014 Achieving Success in the Face of the Unknown During World War II‚ one of the greatest thefts in history was occurring. Adolf Hitler was adamant about expanding his private art collection and filling it with the finest art of Europe. A group known as the Monuments Men worked to stop this by recovering and protecting these priceless artworks. Along their way‚ they came across numerous challenges they had to face and overcome. These encounters
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The Atrocities and Liberation of Concentration Camps If you combine sadistic Nazi soldiers‚ a "license to kill‚" and twenty-six million people whom they took their aggression out on‚ you have the Holocaust. From torture to murder‚ the concentration camp prisoners experienced almost every despicably‚ inhumane act one can imagine. Hitler ’s Nazis will never be able to justify this ultimate example of cruelty and unfairness. Although the Holocaust occurred nearly seventy years
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individual advancement. Through depersonalization‚ the government rewards those who actually never do anything. However‚ the "Unknown Citizen" has a monument built as a symbol of his perfection. Thus‚ Auden’s "The Unknown Citizen" shows how the government makes each individual merely a number unless they do not conform to society’s norms. The monument of the "unknown citizen" is erected not to honor the memory of a man‚ but to show how he is the perfect example of a good citizen (Auden). In this
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