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If the distance between the earth and moon were halved, the force of the attraction between them would be:

w) one fourth as great

x) one half as great

y) twice as great

z) four times as great
in Physics & Chemistry by Wooden Status (1,408 points) | 366 views

1 Answer

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Answer is z) four times as great

Initial force of the attraction between them, F1Gm1m2/d2

Halving the distance between the earth and moon will give F2Gm1m2/(d/2)2  = Gm1m2/(d/2)2 = Gm1m2/(d2/4) = 4Gm1m2/d2 = 4F1

by Diamond (49,178 points)

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