Which of the following statements about geostationary communication satellites is correct________
A. it must be orbiting the equator
B. The orbital radius of this kind of satellite launched by each country is the same
C. Its linear velocity must be greater than the first cosmic velocity
D. it can operate over the north and south poles
Answer:B
Which of the following statements about geostationary communication satellites is correct________
A. it must be orbiting the equator B. The orbital radius of this kind of satellite launched by each country is the same C. Its linear velocity must be greater than the first cosmic velocity D. it can operate over the north and south poles