gc textbook chapter 11 Vibrations and Waves (id: 98a1f6e42)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

[填空题]
How long must a simple r;nsbntur) (za9os3f j e5/)j-qkh/ hkx +gkcag28m5 pendulum be if it is to make exactly one swing per second? 2kac +8gxkm5g(That is, one complete vibration takes exactly 2.0 s.)    m

参考答案: 0.99±2%


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