Vibrations and Waves (id: b4dba64a5)

本题目来源于试卷: Vibrations and Waves，类别为 IB物理学

[填空题]
An elastic cord is 65 cm lc ayb. .0nga*d4ydv )nong whey x-drp1g8d n (lpop d0aikkys24z.6 7n a weight of 75 N hangs from it but is 85 cm long when a kp(k 0 da268ds1 p.ing- rol7d4pyyzxweight of 180 N hangs from it. What is the “spring” constant k of this elastic cord?    N/m

参考答案: 530±2%


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