Asked by sam
                A woman weighs 125  lbs on the surface of the earth ( radius = 3960 miles). At what distance above the surface of the earth would she weigh 85 lbs?
            
            
        Answers
                    Answered by
            oobleck
            
    Since F = GMm/r^2,
at a height of h miles, you want
(3960+h)^2/3960^2 = 125/85
    
at a height of h miles, you want
(3960+h)^2/3960^2 = 125/85
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