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Physics
Physics
Problem
For a satellite in circular orbit, the centripetal acceleration equals the gravitational acceleration at its orbital radius. At what height above Earth’s surface will this acceleration be exactly one-fourth of
g
g
g
? (Take Earth’s radius
R
E
=
6400
km
R_{\rm E}=6400\,\text{km}
R
E
=
6400
km
.)
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