problem12_66

University Physics with Modern Physics with Mastering Physics (11th Edition)

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12.66: a) The energy the satellite has as it sits on the surface of the Earth is . E E i R GmM E - = The energy it has when it is in orbit at a radius . is E E 2 f E R GmM E R R - = The work needed to put it in orbit is the difference between these: . - E E 2 i f R GmM E E W = = b) The total energy of the satellite far away from the Earth is zero, so the additional
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Unformatted text preview: work needed is ( 29 . E E E E 2 2 R GmM R GmM =--c) The work needed to put the satellite into orbit was the same as the work needed to put the satellite from orbit to the edge of the universe....
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