Work and Energy in Satellite Orbits
A satellite of mass m is in a circular orbit of radius r. What is the work required to move the satellite to a new circular orbit of radius 4r, expressed in terms of its initial gravitational potential energy?
A
The work equals 3/4 of the initial potential energy
B
The work equals the initial potential energy
C
The work equals 1/4 of the initial potential energy
D
The work equals 3/4 of the magnitude of the initial potential energy
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