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1. If the speed of a particle is doubled, by what factor is its kinetic energy changed?
1/4 1/2 2 4 8
2. Consider two superballs. If the second superball has twice the diameter of the first, its volume and mass will be larger by what factor?
2 4 8 16 32
3. In an inelastic collision between two objects, the final velocities of the two objects are always:
zero. opposite in direction. unequal in magnitude. the same. nonzero.
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