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gc physics textbook chapter 6 problems (id: c957dd3c0)

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admin 发表于 2024-11-29 23:04:31 | 显示全部楼层 |阅读模式
本题目来源于试卷: gc physics textbook chapter 6 problems,类别为 IB物理学

[填空题]
A 145-g baseball is droppedqu qcp;o 52ux3 fiayxffx j * iw9cq*9r6y42(vvrom a tree 13.0 m above the ground.
(a) With what speed would it hit the ground if air resistance could be ignored?    m/s
(b) If it actually hits the ground with a speed of 8m/s what is the average force of air resistance exerted on it?    N




参考答案:
空格1: 16±2%空格2: 1.06±2%


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