Question

a satellite does not need any energy to revolve around the earth?why​

Answer 1

Answer:

Satellites do need energy in order to get to the point where they can orbit, but do not need additionally energy when they get there for a good reason. The air molecules hit the molecules of the ball, taking away energy and slowing the ball down to a stop.

Explanation:

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Answer 2

Answer:

It is because there is balanced centripetal force provided by a gravitational force.

Explanation:Hope It helped you