In his experiments with gravity, Isaac Newton showed how the motion of each planet in the solar system results from the combined gravitational pull of the Sun and of all the other planets, each contributing according to their mass and distance from the others.
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Aof all the other planets, each contributing according to their
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Bof all the other planets, with each of them contributing according to their
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Call the other planets, each of which contributing according to its
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Dall the other planets, each contributing according to its
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Eall the other planets, each of which contribute according to their
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