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]
Doubling only the mass of a vzs ubgr-n ;s(kozk-)u h/(vv+ibrating mass-and-spring system produces k(c :vhe06 ecjwhat effect on the systemc jk6v0 ce(h:e's mechanical energy?
A. increases the energy by a factor of two
B. increases the energy by a factor of three
C. increases the energy by a factor of four
D. produces no change
参考答案: D
本题详细解析:
暂无
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