本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 通用国际物理
[单选题]
An ice skater performsz6 qj2sl+bue:b *t w9d. m.sld a lq2hk4,c qfjkp8 g2e7pirouette (a fast spin) by pulling in his outstretched arm2h7 kep48 l,qjkfc 2gqs close to his body. What happens to his moment of inertia about the axis of rotation?
A. It does not change.
B. It increases.
C. It decreases.
D. It changes, but it is impossible to tell which way.
参考答案: C
本题详细解析:
暂无
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