13. A uniform cylinder of radius R, mass M, and length L rotates freely about a horizontal axis pa o the cylinder, as shown below. The moment of inertia of the cylinder about this axis is 
(A)
(B) 
(C)MR2
(D)
(E)
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統計: A(0), B(0), C(3), D(7), E(0) #3224659
統計: A(0), B(0), C(3), D(7), E(0) #3224659