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A grinding wheel in the shape of a solid disk is 0.300 m in diameter and...

A grinding wheel in the shape of a solid disk is 0.300 m in diameter and has a mass of 3.00 kg. The wheel is rotating at 2200 rpm about an axis through its center. What is its kinetic energy? Express your answer with the appropriate units. How far would it have to drop in free fall to acquire the same amount of kinetic energy without rotating? Express your answer with the appropriate units.

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