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 amplitudpcx8tcbdxer0o: 0:9 ve xys sfg1t,vbvs i m)(2o i2)-sof a vibrating mass-and-spring system produces what effect on the sy1yox )v(, bf isssimtg )s2v2-stem'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: C
本题详细解析:
暂无
| 
