本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 国际高中通用物理
[单选题]
Doubling only the sprin:4x ci7r1hz- qlldm*0 lx5p uug constant of fz-tzj4n;i:c a vibrating mass-and-spring system produces:c4f;j -tzzin what effect on the system's mechanical energy?
A. increases the energy by a factor of two
B. increases the energy by a factor of three
C. increases he energy by a factor of four
D. produces no change
参考答案: A
本题详细解析:
暂无
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