21. Two marbles, one twice as heavy as the other, are dropped to the ground from the roof of a building. We neglect air friction effects. Just before hitting the ground, the heavier marble has: O A. the same velocity as the lighter one O B. half as much velocity as the lighter one O C. a fourth as much velocity as the lighter one O D. less than half but more than a fourth as much velocity as the lighter one E. twice as much velocity as the lighter one F. more than twice but less than four times as much velocity as the lighter one G. four times as much velocity as the lighter one O H. more velocity than the lighter one but not twice the velocity of the lighter one. O O O OO O OO

21. Two marbles, one twice as heavy as the other, are dropped to the ground from the roof of a building. We neglect air friction effects. Just before hitting the ground, the heavier marble has: O A. the same velocity as the lighter one O B. half as much velocity as the lighter one O C. a fourth as much velocity as the lighter one O D. less than half but more than a fourth as much velocity as the lighter one E. twice as much velocity as the lighter one F. more than twice but less than four times as much velocity as the lighter one G. four times as much velocity as the lighter one O H. more velocity than the lighter one but not twice the velocity of the lighter one. O O O OO O OO

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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