牛顿时的运动定律适用于地球上一切东西。

Newton's law of motion apply to all things on the earth.

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牛顿时的运动定律适用于地球上一切东西。

Newton's laws of motion do not single out a direction of time.

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认为作用于行星的是平方反比定律的引力，这种看法在牛顿时代很流行。

Newton thought gravity was a mysterious force acting between two objects, but Einstein explained that it is the curving of spacetime.

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A typical problem that you may have done in your first pass at Newton's law, someone tells you a force of 36 Newtons is acting on a mass of whatever, 4 kilograms; what's the acceleration?

在你们第一次接触牛顿定律时,可能见过这么一道典型题目,告诉你,一个 36 牛的力,作用在一个物体上,4 千克吧,问加速度是多少

耶鲁公开课 - 基础物理课程节选