# math alegebra

A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

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1. The PE it gave up is changed to KE.

PE gave up= GMe*m/re-GMe*m/(h-re)
KE end= v change to miles to meters.
then
ke=PE chnange
solve for h.

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