Explore Download 0CommentLinkEmbedof 6Readcast0 inShare Xavier Bourret-Sicotte Physics18/09/2007 Measuring the speed of sound In this experiment‚ we will measure the speed of sound.The apparatus consisted of a plastic tube filled with water linked to a water container. Thiscontainer could be displaced vertically in order to change the water level. We would thenmake a tuning fork vibrate above the pipe and change the water level until the resonance wasat maximum intensity.Hypothesis: The
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ACT 2 SCENE 2 INTRODUCTION Good afternoon. I’m going to tell you about the disposition of Julius Caesar’s wife Calpurnia‚ during the early morning hours on the Ides of March which was also the day Caesar was to be crowned king but‚ was assassinated instead. BRIEF SUMMARY The scene opens with thunder and lightning accompanied by torrential rain since the night before when Calpurnia is deeply disturbed by horrid nightmares of Caesar being slaughtered by sadistic murderers (sadistic because they were
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Is the neural pathway significantly longer for a visual stimulus or a sound stimulus (or a pressure stimulus) Data collection and processing Table 1a: Data collected by John Rha and Arthur Hamilton by dropping ruler for calculation of length of the neural pathways (Visual‚ Auditory and Sensual) Trial# | Visual | Auditory(Sound) | Sensual(Pressure) | | (cm±0.1cm) | (cm±0.1cm) | (cm±0.1cm) | | John | Arthur | John | Arthur | John | Arthur | 1 | 43.9 | 24.1 | 33.1 | 34.6 | 50.1 | 50
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International Business Unilever Student information: Rutger Vis 1006834 Leroy Chin-A-Loi IBMS 1F Teacher: Mr. Imeson Summary Unilever is one the World’s oldest multinational corporations with extensive product offerings in food‚ detergent‚ and personal care businesses. Unilever was organized on decentralized bases‚ maintaining subsidiaries in each major national market. Only in Europe it maintained 17 subsidiaries accountable for its performance in the
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Sarah Clay Internal Assessment Design Question: Does the caffeine in Coca-Cola affect blood pressure? Hypothesis: The amount of caffeine in Coca-Cola will cause to the adrenal glands‚ located on the top of the kidneys‚ to release more adrenaline which will in turn cause an increase in blood pressure. As the amount of Coca-Cola decreases‚ so will the difference between initial blood pressure and blood pressure after the consumption of the caffeine. Variables: Independent Variables | Dependent
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OxidatiOn and ReductiOn OxidatiOn & ReductiOn 9.2 9 Introduction to oxidation and reduction Redox equations Some common oxidising agents and reducing agents (EXT) 9.3 Reactivity 9.4 Voltaic cells 19.1 Standard electrode potentials (AHL) 9.5 Electrolytic cells 19.2 cORe 9.1 Electrolysis (AHL) TOK Are oxidation numbers real? I remember contemplating on the nature of reality back in Chapters 2 and 4‚ with regard to electrons and hybridization respectively
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TOK Essay – Final draft By: Sakshi Khanna 13B Word count: 1413 “That which can be asserted without evidence can be dismissed without evidence.” – Christopher Hitchens. Do you agree? “Seeing is believing.” Evidence can clarify doubts in certain areas of knowledge and can bring about conclusions. These assertions and dismissals can be driven by emotion and bias‚ while some individuals prefer to choose reason and logic over emotion in coming to asserting something‚ that is‚ they tend to assert
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Energetics 5.1 5.1.1 Endothermic: A reaction in which energy is absorbed. If your reactants are at a lower energy level than your products then the reaction is endothermic this means it has a + ΔH° Exothermic: A reaction in which energy is released. If your reactants are at a higher energy level than your products then the reaction is exothermic this means it has a ΔH° Standard Enthalpy ( ΔH°) The internal energy stored in the reactants. Only changes in enthalpy can be measured
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Acids And BAses Acids And BAses 8.1 8.2 8.3 8.4 18.1 18.2 18.3 18.4 18.5 Theories of acids and bases Properties of acids and bases Strong and weak acids & bases The pH scale Calculations involving acids and bases (AHL) Buffer solutions (AHL) Salt hydrolysis (AHL) Acid-base titrations (AHL) Indicators (AHL) 8 8.1 THeORies OF Acids And BAses 8.1.1 Define acids and bases according to the Brønsted–Lowry and Lewis theories. 8.1.2 Deduce whether or not a species could act as a Brønsted–Lowry
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Pioneer Square Observation Report In Pioneer square there are many places to sit and observe the people whom pass by‚ but perhaps one of the most interesting places to go is the food court inside the pioneer square mall. I found that the best time to observe all the micro cultures was at lunch time‚ when people take a break from their busy lives to come and enjoy a lunch from a variety of choices. The environment is one of the other things that I was able to notice right away‚ not only the setting
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