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A solid ball of mass 2.30kg and diameter 16.0cm is rotating about its center of mass...

A solid ball of mass 2.30kg and diameter 16.0cm is rotating about its center of mass at 80.0rev/min. What is its kinetic energy ?

If an additional 1.20J of energy are supplied to the rotational energy, what is the new angular speed of the ball in radians/sec?

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