1.

A satellite moves around the earth in a circular orbit of radius R centered at the earth. A second satellite moves in an elliptical orbit of major axis 8R, with the earth at one of the foci. If the former takes 1 day to complete a revolution, later would take

A. 21.6 days
B. 3 hours
C. 1.1 hours
D. 8 days
Answer» E.


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