Asked by Elise
The period of revolution of a satellite is 90min. What is the altitude above the surface of the earth?
Answers
Answered by
drwls
Quite low altitude. The period would be 84 minutes if it could be in a sea-level orbit.
The earth's radius is Re = 6378 km
Centripetal force must equal gravity attraction
V^2/R = G*M/R^2
V = 2 pi R/(period)
Eliminate V and solve for R. G is the universal gravity constant.
The altitude is R - Re.
The earth's radius is Re = 6378 km
Centripetal force must equal gravity attraction
V^2/R = G*M/R^2
V = 2 pi R/(period)
Eliminate V and solve for R. G is the universal gravity constant.
The altitude is R - Re.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.