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This is for a college physics 100 level class. A regulation ping-pong ball has a mass...

This is for a college physics 100 level class.

A regulation ping-pong ball has a mass of 2.7 grams and a diameter of 40 mm. If this ping-pong ball is dropped from a height of 4.0 meters, how long will it take to reach the ground, and how fast will it be traveling right before it hits the ground? (Air resistance is not negligible.)

Please include an explanation of the process.

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