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What is the energy required by a satelli...

What is the energy required by a satellite to keep it orbiting?

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The correct Answer is:
D
`epsilon_(1) = (-GMm)/((R +h)) + (GMm)/(R )`
`GMm((-R + R + h)/(R(R + h))`
`epsilon_(1) = (GMmh)/(R(R + h))`
`epsilon_(1) = (GMmh)/(R (R + h))" "……(i)`
`v = sqrt((GM)/(R + h))`
`KE = E_(2) = 1/2 (GM)/((R + h))`
`(GMmh)/(R(R + h)) = (GMm)/(2(R + h))`
`2h = R`
`h = 3.2 xx 10^(3) km`
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