問題詳情
50. The moment of inertia of a collapsing spinning star drops to 1/3 of its initial value without changingthe angular momentum. What is the ratio of the new rotational kinetic energy to the initial rotationalkinetic energy?
(A) 1/6
(B) 1/3
(C) 1
(D)3
(E)6
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增