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Physics
Physics
Problem
A satellite of mass
m
m
m
is in orbit around a planet of radius
R
R
R
and mass
M
M
M
. The total energy of the satellite is
−
G
M
m
4
R
-\frac{GMm}{4R}
−
4
R
GM
m
. What is the radius of the orbit? A.
R
R
R
B.
4
R
3
\frac{4R}{3}
3
4
R
C.
2
R
2R
2
R
D.
8
R
3
\frac{8R}{3}
3
8
R
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