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Statement of a problem № 3656

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Suppose equal amount of charge of the same sign is placed on the earth and the moon, what would be its magnitude if the gravitational attraction between the two bodies may be nullified? Take mass of the earth and moon to be 6x10^24 and 7.4x10^22 kg, respectively.

Solution:
Suppose equal amount of charge of the same sign is placed on the earth and the m

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