calculus
posted by matt .
Use Newton's Law of Gravitation to compute the work W required to launch a 1500 kg satellite vertically to an orbit 800 km high. You may assume that the earth's mass is 5.98*10^24 kg and is concentrated at its center. Take the radius of the earth to be 6.37*10^6 m and G = 6.67*10^11 Nm^2/kg^2.

Work= INT Fdx
= INT GMeMs/x^2 dx
integrate from re to re+800,000m
I will be happy to check your work.
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