本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 国际高中通用物理
[单选题]
An ice skater performs a pirouette (a fast spin) by0;ekubwpw0 a zn9jg7 (sfo0l , gth*3w pulling in his outstretc8n-klbv d) k9yhed arms close to h b8)9ny kvk-ldis 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
| 
