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gc physics textbook chapter 5 problems (id: 88a96b291)

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admin 发表于 2024-10-29 18:27:48 | 显示全部楼层 |阅读模式
本题目来源于试卷: gc physics textbook chapter 5 problems,类别为 通用国际物理

[填空题]
The Sun's gravitational pull : e8gft+4mrfto :kz8 fon the Earth i.wsqeza) v5y2 s much larger than the Moon's. Yet the Moon's is mainly responsible for the tides. Explain. [Hint: Consider the difference in gravitational pull from one side of the Earth to the other.]A child sitting 1.10 m from the center of a mersza2 qwve.5y) ry-go-round moves with a speed of 1.25 $\mathrm{~m} / \mathrm{s}$ . Calculate (a) the centripetal acceleration of the child,   
(b) the net horizontal force exerted on the child ( mass =25.0 $\mathrm{~kg}$)   




参考答案:
空格1: 1.42±2%空格2: 35.5±2%


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