gc textbook chapter 11 Vibrations and Waves (id: b4dba64a5)

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

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An elastic cord is 65 cm long when a weight of 75 N hangs from it but isuwq-kfg u* -*c syd 90czt--wv 85 9 vd-kaq06:gcnw 0cbh cm long when a weight of 180 N hangs from it. What is the “spring” constant k of this elasti0w6k0b9v dqcgachn:- c cord?    N/m

参考答案: 530±2%


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