s09_exam1_makeup

s09_exam1_makeup - NAME: Exam 1: PHYS141 S09 Exam 1,...

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Unformatted text preview: NAME: Exam 1: PHYS141 S09 Exam 1, Physics 141 S09 You may bring 1 4x6 index card with whatever you want written on it. I need your name on each page of the exam SHOW YOUR WORK!!! Useful Constants: Acceleration due to gravity (g) = 9.8 m/s 2 cos(45)=sin(45)=0.7, cos(30)=sin(60)=0.866, cos(60)=sin(30)=0.5, cos(53)=sin(37)=0.6, cos(37)=sin(53)=0.8 1 mile = 1600 m Write and sign the honor pledge here: I pledge on my honor that I have not given or received any unauthorized assistance on this assignment/examination. NAME: Exam 1: PHYS141 S09 Question 1 The mass of the earth is 6x10 27 g and its radius is 6.4x10 6 m. What is its density in kg/km 3 ? NAME: Exam 1: PHYS141 S09 Question 2 Person A is at (5m,-10m) according to some coordinate system and is walking with a constant velocity of (0,2m/s). Person B is at the origin. What should person Bs velocity be so that he meets person A at (5m,0m)?...
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s09_exam1_makeup - NAME: Exam 1: PHYS141 S09 Exam 1,...

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