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Need help with these tricky questions? 1. If the COR of a Superball is .85 and it bounces to a height of 4.5m after falling from a certain height, what height was it dropped from? 2. If the Superball is in a freezer for 24 hours, will its COR increase or decrease? 3.The COR of a ping pong...

1.If the worlds fastest man can run the 100 meter dash in 9.77 seconds, and his mass is 88kg, what is his kinetic energy during his run? B. What is the kinetic energy of the worlds fastest man while he is sitting on his sofa watching a baseball game? C. The fastest speed by a man so far is...