落水

Back to the Light Pub Date : 2018-01-04 DOI:10.1515/9783035619348-010

David C Mohrmann

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引用次数: 8

摘要

两个物体之间的力的大小取决于每个物体的质量和质心之间的距离。例如，一个挂在树枝上的苹果所受的重力比它落在地球上时要小。这是因为当苹果挂在树枝上时，它的质心比它躺在地上时离地球质心更远。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fallingwater

The amount of force between two objects depends upon how much mass each contains and the distance between their centers of mass. For example, an apple hanging from a tree branch will have less gravitational force acting on it than when it has fallen to Earth. The reason for this is because the center of mass of an apple, when it is hanging from a tree branch, is farther from the center of mass of Earth than when lying on the ground.

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