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 vibrhx-q, q0jv* cw/kj ,ighc7c*il27vws ating massu ds ysizz+iq //s- t8v7h2;gy-and-spring system produces what effect on the system'sz zhs+ t;d2/iy/q-vyg8s7usi 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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