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]
A mass undergoes SHM with amplitude 4ha)iq.iad9 i of 4 cm. The energy is 8.0 J at this time. a. 9i a)qii4dh ,,t,zrv5z nz*y4mdf7 l xq;bl The mass is cut in half, and the system i5lt*nzbdx;y l 7 ,mr,z4 zf,qvs again set in motion with amplitude 4.0 cm. What is the energy of the system now?
A. $2.0 \; J$
B. $4.0 \; J$
C. $8.0 \; J$
D. $16 \; J$
参考答案: C
本题详细解析:
暂无
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