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 vib9ysoc 5e:+w9hmga lr ;rating mass-and 5z*yt:-da9pxd iyng0-spring system produces what effect on the sy -n*z:gd5 dp0ix a9yytstem'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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