A 0.015-kg marble A moving to the right at 0.40 m/s has a head-on, elastic collision with a marble B of the same mass sitting at rest on a smooth, level surface. Which of the following are the correct magnitudes and directions of the velocities of the two marbles after the collision?
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A 0.015-kg marble A moving to the right at 0.40 m/s has a head-on, elastic collision with a marble B...
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