Physics - Satellites

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Why must the centre of the satellite orbit coincide with the centre of the Earth?

I'm such a science noob, please help >_<

  • Physics - Satellites -

    Actually, it is not. Both the satellite and Earth will rotate about a common center of gravity. However, the center of Earth and that center of rotation has a nin distance, because of the Mass of the Earth. Keplers Laws apply.

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