A 4.00 kg solid sphere (I = 2/5 MR2) is spinning with an angular velocity of 23.0 rad/s. The diameter of the sphere is 20.0 cm. The rotational kinetic energy of the spinning sphere is
A) 3.02 J.
B) 3.52 J.
C) 3.75 J.
D) 4.02 J.
E) 4.23 J.
Correct Answer:
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