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 spt:v-yl 0fmam+pa)e) tring and boipz rkw 5,ds3o 2*2ndfbs up and down between points A and B. Where is the mass located when itsok 25 rpz,sw2di3f* dn potential energy is a maximum?
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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