QMC%20Phys131-E2%20%28ch6%2C7%2C8%2C9%29

# QMC%20Phys131-E2%20%28ch6%2C7%2C8%2C9%29 - Name_Student ID...

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_______________________ _ Student ID _______________ Score______ _____ last first Physics 131, WI 2009 Exam 2 QMC Phys131-E2 (ch6,7,8,9).docx.doc I. Part B: Multiple choice questions [20 points Total] 1. In which case does block m experience a larger acceleration? In (1) a hand is providing a constant downward force of 98.1 N. In (2) there is a 10 kg mass hanging from a rope. In both cases the ropes and pulleys are massless. A. Case (1) B. Case (2) C. Same D. Not enough information 2. A block of mass m, when placed on a rough inclined plane (m > 0) and given a brief push, keeps moving down the plane with constant speed. If a similar block (same m) of mass 2m were placed on the same incline and given a brief push, it would: A. Stop B. Accelerate C. Move with constant speed D. Not enough information 3. You are standing on a scale in an elevator and see that your weight is increasing. This means that: A. You are moving upward and speeding up B. You are moving upward and slowing down. C.

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QMC%20Phys131-E2%20%28ch6%2C7%2C8%2C9%29 - Name_Student ID...

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