a. 0.000411 mol H2 2. Calculate the atomic weight of Magnesium. Atomic weight of Mg = weight of Magnesium/moles of H2. b. 59‚136.253 g/mol Mg (24.305 - weight of Mg / 0.000411 mol H2) 3. Calculate the # of molecules of H2 that were produced in the reaction – use Avagadro’s number – remember units! c. 2.47510016 × 1020 # of molecules of H2 (Avagadro’s number * moles of H2) 4. Calculate the # of atoms of Magnesium that were
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measure Rmax Use the equation to solve for initial speed Case II: Calculate new R=80/100Rmax Use to calculate () Find out another expected angle ‚ and find its relation with Adjust the launch angle to ‚ launch the ball and measure R Adjust the launch angle to ‚ launch the ball and measure R Compare R1 and R2 with R More Calculation: Calculate components of velocity for both cases using expected value Calculate maximum height for case I only Data and Calculations: In Projectile
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ersStudent name: ________________________________ Student ID Number: ________________________________ Length: 1.5 hours Instructor: Sandra Warren Instructions: Please use pen. Calculators allowed. Part A: (3 marks each) Q. 1 | Q.2 | Q.3 | Q.4 | Q.5 | Q.6 | Part B: (10 marks each) Q.1 | Q.2 | Q.3 | Q4. | Total: / 52 marks Part A: Short Answer. Only answer 4 of the 6 questions. (3 marks each) A1. Under standard state conditions‚ predict which has
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Physics 2006 (Compartment Delhi) General Instructions: 1. All questions are compulsory. 2. There is no overall choice. However‚ an internal choice has been pro vided in one question of two marks‚ one question of three marks and all three questions of five marks. You have to attempt only one of the choices in such questions. 3. Question numbers 1 to 5 are very short answer type questions‚ carrying one mark each. 4. Question numbers 6 to 12 are short answer type questions‚ carrying two marks
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2015 JC2 H2 Physics June Revision Package Measurement Techniques J02/P2/Q1 1. Make reasonable estimates of the following quantities. (a) mass of an apple [1] (b) number of joules of energy in 1 kilowatt-hour [1] (c) wavelength of red light in a vacuum [1] (d) pressure due to a depth of 10 m of water [1] J02/P2/Q2 2. A student uses a micrometer screw gauge to measure the diameter of a wire. He fails to notice that‚ with the gauge fully closed‚ the reading is not zero. (a) State and explain
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equipment and non Nike brand products‚ such as Cole Haan. When we were considering on whether it was more appropriate to use multiple cost of capitals for each segment we believe that they all mostly share similar risk factors. We therefore decided to calculate two different costs of capitals‚ one using the geometric and the other using the arithmetic method. We believe that Joanna Cohen’s methodology in determining if Nike is currently under or overvalued was incorrect. Today we will show you the mistakes
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Algorithm Example 1: Write an algorithm to determine a student’s final grade and indicate whether it is passing or failing. The final grade is calculated as the average of four marks. Pseudocode & Algorithm Pseudocode: Input a set of 4 marks Calculate their average by summing and dividing by 4 if average is below 50 Print “FAIL” else Print “PASS” Pseudocode & Algorithm Detailed Algorithm Step 1: Input M1‚M2‚M3‚M4 Step 2: GRADE (M1+M2+M3+M4)/4 Step 3: if (GRADE < 50) then Print “FAIL”
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ST ANDREW’S JUNIOR COLLEGE JC 2 Preliminary Examination CHEMISTRY 9647/03 Higher 2 13 September 2010 Paper 3 Free Response 2 hours Candidates answer on separate paper. Additional Materials: Answer paper‚ Graph Paper‚ Data Booklet READ THESE INSTRUCTIONS FIRST Write your name and civics group on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use a soft pencil for any diagrams‚ graphs or rough working. Do not use staples‚
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container at 760 torr. Calculate the volume it occupies at 2.25 atm at a constant temperature. (1.6 L) 2. Nitrogen gas contained in a 1.85 L vessel exerts a pressure of 1.00 atm at 0 oC. Determine the required change in temperature to increase the pressure of nitrogen gas to 1.65 atm after it has been transferred to a 1.50 L vessel. (92.297) 3. An empty tank of 3 dm3 has a mass of 897.3 g. It is filled with propane gas‚ C3H8‚ at 25 o C to a pressure of 3.30 atm. Calculate the mass of the tank after
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Weak | 0.1 | (50%) | Below average | 0.2 | (5%) | Average | 0.4 | 16 | Above average | 0.2 | 25 | strong | 0.1 | 60 | | 1.0 | | Calculate the stock’s expected return‚ standard deviation‚ and the coefficient of variation. 2. Required rate of return. Stock R has a beta of 1.5‚ Stock S has a beta of 0.75‚ the expected rate of return on an average stock is 13%‚ and the risk free
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