本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 Generic Physics
[单选题]
An ice skater performs a pirou11 gsbsu1 9d4nggn8ct ecy9dv u .ntd-4tte (a fast spin) by pulling in his outstretched arms close to his body. What happens to his rotatiovuy dcd9t4-. nnal kinetic energy 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: B
本题详细解析:
暂无
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Post time 2024-1-22 02:51:16