A ball is thrown vertically upward with an initial speed of 20 m/s. Two seconds later, a stone is thrown vertically (from the same initial height as the ball) with an initial speed of 24 m/s. At what height above the release point will the ball and stone pass each other?

A. 17 m
B. 21 m
C. 18 m
D. 27 m
E. 31 m


Answer: A

Physics & Space Science

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An experiment similar to the Miller-Urey Experiment was more recently done by NASA using an icy mixture of water, methanol, ammonia and carbon monoxide. The mixture was exposed to ultraviolet radiation

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What is the equivalent resistance between points a and b when R = 12 ??

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