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 spring ansxq5e *o 751f7ietflo d bobs up and down between poi/u :ubw mnlgw n0p(el :2z3:punts A and B. Where is the mass located when its potential energy is a minib 2 uullg:npz/(wnm0u ::e 3pwmum?
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: B
本题详细解析:
暂无
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