Physics Unit11: Vibrations and Waves (id: 955362793)

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]
A mass undergoes SHM n:yc(k.jte.p7gvz6xu rp,2 twith ampg: ;yqtatj69/ztt:u n litude of 4 cm. The energy is 8.0 J at this time. The mass is cut in half, at:;6ju ynzg: 9t tq/tand the system is 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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