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calculus

the weight of a person on or above the surface of the earth varies inversely as the square of the distance the person is from the center of the earth. if a person weighs 180 pounds on the surface of the earth and the radius of the earth is 3900 miles, what will the person weigh if he or she is 400 miles above the earth's surface?

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  1. Inverse square law means that gravity is inversely proportional to the square of the distance.
    W2/W1 = (R1/R2)²

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  2. 134.11 pounds

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  3. Weight of an astronaut on the surface of the Earth is w1 and his weight on the surface on the moon is w2 . the ratio of w1 / w2 will be
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