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## Homework Statement

## Homework Equations

I know that Fc = m * centripetal acceleration, where the Fc = the force of gravity

## The Attempt at a Solution

[/B]

I was able to use process of elimination to get B for 25 correctly, but I am not able to understand how it is the right answer.

How can I find that the right answers for 25 is B and 26 A. I tried solving with different methods, but I keep hitting the wall.

The method of solving must have something to do with the gravitational force between the planet and satellite.

Thanks in advance