gc textbook chapter 7 Linear Momentum (id: 45c710d8b)

本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理

[填空题]
A ball is dropped from a height of 1.50 m and rebo z0rrq* h ./c9q-u)k) srpfjtxe-mz*junds hgm.itzet:/u j2 g+ :vrgfpa:to. 21tto a height of 1.20 m. Approximately how many rebounds will the bag/og jv:erhzp:tim:a.u2 ttft .+ 12 gll make before losing 90% of its energy?   

参考答案: 11±2%


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