Experiment 1: Simple Harmonic Motion Dominic Stone Lab Partner: Andrew Lugliani January 9‚ 2012 Physics 132 Lab Section 13 Theory For this experiment we investigated and learned about simple harmonic motion. To do this we hung and measured different masses on a spring-mass system to calculate the force constant k. Simple harmonic motion is a special type of periodic motion. It is best described as an oscillation motion that causes an object to move back-and-forth in response to
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Leo Tran IB Chemistry SL II R5 Ms. Crane January 4‚ 2012 Restoring Balance LAB Pre-Lab Questions 1. The solubility of iodine increases because the position of equilibrium has shifted towards the triiodide side of the reaction. Addition of the reactants causes an increase in the product which is directly related to the solubility of iodine in water in this case. 2. Ammonium chloride will be more soluble in hot water as in an endothermic reaction‚ increasing the temperature (which
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certain task. In this lab we examined motor unit recruitment and muscle fatigue by electromyography (EMG) with dynamometry (DYN). When the motor unit in the muscle is activated signals are then generated‚ which result in muscle contraction. The impulse generated are a bit weak‚ yet can still be detected by the electrodes‚ EMG and is coupled by a measurements of power‚ DYN. When all the motor units reach its maximum strength the muscles will fatigue. Finally‚ the objectives of this lab were to determine
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As a small peninsula in the Persian Gulf‚ Qatar has since unique culture. Next we come to explore how the cultural background of the country under Qatar. Qatar is an advocate of Islamic countries‚ in a constitutional monarchy system of the country; Qatar ’s overall human culture is quite conservative. As a Muslim reasons‚ women low or underground‚ women can no longer be a public place‚ see passengers can not see off. However‚ this does not hamper the enthusiasm of the Qatari’s. For foreign people
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S CHOOL OF M ATHEMATICS ‚ S TATISTICS AND O PERATIONS R ESEARCH STAT 392 Tutorial – Ratio and Regression Estimation 1. Regression Estimation (from Lohr‚ Ex 3.6.4) Foresters want to estimate the average age of tress in a stand. Determining age is cumbersome because one needs to count the tree rings on a core taken from the tree. In general‚ though‚ the older the tree‚ the larger the diameter‚ and diameter is easy to measure. The foresters measure the diameter of all 1132 tress and find that
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Fit to print http://www.cbc.ca/arts/books/story/2009/05/12/f-espresso-book-machine... LETTER FROM LONDON Fit to print Will the Espresso book machine revolutionize the publishing industry? Last Updated: Wednesday‚ May 13‚ 2009 | 12:07 PM ET Comments12Recommend54 By Mike Doherty‚ CBC News The Espresso book machine prints a book at the Blackwell bookstore in central London. (Leon Neal/AFP/Getty Images) Ever since William Caxton brought a printing press to Westminster in 1476‚ London has
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There are many characteristics‚ including talent and intelligence‚ that make a person successful. However‚ the most essential characteristic that makes a person successful is perseverance. Perseverance is defined as the continued effort to do or achieve something despite difficulties‚ failure‚ or opposition. Perseverance can be shown by J.K. Rowling‚ who got rejected by twelve major publishers but worked hard to publish her book and sold over 120 million copies of it‚ and Elizabeth Blackwell‚ who
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Couva‚ Trinidad‚ W.I. Program: National Engineering Technician Diploma Course code: ENSC 110D Class: Petroleum Lab Title: Pendulum with a yielding support Instructor: Mrs. Sharon Mohammed Full time Name: Kirn Johnson
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(aq) NH3+ + H+ + Cl- →NH4+ + Cl- NH3+ + H+ → NH4+ H+ + OH- → H2O (l) ∆H= -54.0 kJ/mol NH4++ OH- → NH3+ + H2O (l) (x-1) ∆H=-4.09 kJ/mol (x-1) -54.0+4.09=-49.9 NH3+ + H+ → NH4+ =- 49.9 kJ /mol (-49.9- -26.2)/-49.9 x 100 =47.3% Lab Questions: Pre: 1. The change in thermal content in a reaction 2. The amount of energy needed to change one gram of a substance 1 degree C 3. (50 mL)(1.02 g/mL)(4.18 J/g C)(25.3-21.4) = 830 J 4. 830J+8.20J/g C(25.3-21.4)= 860J 5. .25L(.6mol/1L)+
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Lab 1 1. The white charge producer has a positive (+) polarity. The blue charge producer has a negative (-) polarity. 2. The positive charge builds significantly then remains as the charge producer is removed. 3. The negative charge builds significantly then remains as the charge producer is removed. 4. When the white charge producer is lowered then removed from the ice pail with out touching the positive charge builds then drops when the charger is removed. 5. When the ice pail
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