The orbital speed ( s ) of an earth satellite is related to its distance ( r ) from the earth's center by the formula . If the satellite's orbital speed is meters per second, find its altitude a (in meters) above the earth's surface, as shown in the illustration. Round the answer to the nearest meter.
A) 4,397
B) 21,478
C) 19,331,856
D) 19,333,456
E) 19,330,256

Question

The orbital speed ( s ) of an earth satellite is related to its distance ( r ) from the earth's center by the formula  . If the satellite's orbital speed is  meters per second, find its altitude a (in meters) above the earth's surface, as shown in the illustration. Round the answer to the nearest meter. 
A) 4,397 
B) 21,478 
C) 19,331,856 
D) 19,333,456 
E) 19,330,256

Quizplus · Accepted Answer

The Answer is E

The Orbital Speed ( S ) of an Earth Satellite