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 spring constant of a vijf uq,9e 9*modbrating mass-and-spritgciee37 vvjpc :4 .,mng system produces what me,pe v 7 :g34i.jtccveffect 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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