本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 通用国际物理
[单选题]
A mass is attached to a vertical sp a31re3p8 qi,qekqmy)ot 8ok8 ring and bobs up and down l p6 9nhs-wouiw54y0 jbetween points A and B. Where is the mass located when its potential energy is a maho4l5w s96pnj0ui- ywximum?
A. at either A or B
B. midway between A and B
C. one-fourth of the way between A and B
D. none of the above
参考答案: A
本题详细解析:
暂无
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