A $4.00 \mathrm{~kg}$ Solid Sphere $\left.\mathrm{I}=2 / 5 \mathrm{MR}^{2}\right)$ Is Spinning with an Angular Velocity Of

Multiple Choice

A $4.00 \mathrm{~kg}$ solid sphere ( $\left.\mathrm{I}=2 / 5 \mathrm{MR}^{2}\right)$ is spinning with an angular velocity of $23.0 \mathrm{rad} / \mathrm{s}$ . The diameter of the sphere is $20.0 \mathrm{~cm}$ . The rotational kinetic energy of the spinning sphere is

A) $4.23 \mathrm{~J}$ .
B) $3.02 \mathrm{~J}$ .
C) $3.52 \mathrm{~J}$ .
D) $3.75 \mathrm{~J}$ .
E) $4.02 \mathrm{~J}$