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Physics
Physics
Problem
A planet has radius
R
R
R
. The escape speed from the surface of the planet is
v
v
v
. At what distance from the surface of the planet is the orbital speed
0.5
v
0.5v
0.5
v
? A.
0.5
R
0.5R
0.5
R
B.
R
R
R
C.
2
R
2R
2
R
D.
4
R
4R
4
R
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