An object in the solar system could be identified if it appeared to move from its place in the earlier photograph.

VOA: special.2010.07.11

And know intuitively that if they move together, they will behave like an object of mass 5 and the acceleration will again be 2.

凭直觉认为既然它们一起运动,那么它们就相当于一个质量为 5 千克的物体,然后我们可以算出加速度为 2

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From the outside she seems far too big an object to move at all much less at better than thirty knots but deep inside is a seething power plant that will handle that speed with ease.

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Textures are well-defined-like water rippling in a trough-and the changes in definition and brightness as you move in relationship to an object are impressive.

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When a stream of light hits an object, it tends to move in the direction that the light is.

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