1.

A gee-stationary satellite is orbiting the earth at a height of 6R above the surface of the earth, where R is the radius of the earth. The time period of another satellite at a height of 2.5 R from the surface of the earth is ......hours.

A.  6.45
B.  4.45 
C. Parabolic
D.  8.75
Answer» B.  4.45 


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