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A square plate has mass 0.600 kg and sides of length 0.150 m.
It is free to rotate without friction around an axis through its center and
perpendicular to the plane of the plate. How much work must you do
on the plate to change its angular speed (a) from 0 to 40.0 rad/s and
(b) from 40.0 rad/s to 80.0 rad/s?
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