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1. |
A satellite of mass “m” is in a circular orbit of radius 1.5R around the earth of radius R. How much energy is required to move it to an orbit of radius 2R? |
A. | -(G*M*m)/12R |
B. | (G*M*m)/12R |
C. | -(G*M*m)/4R |
D. | (G*M*m)/4R |
Answer» B. (G*M*m)/12R | |