- #1

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please show steps so that I can learn.

thanks a lot.

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- Thread starter sstoning
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- #1

- 2

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please show steps so that I can learn.

thanks a lot.

- #2

rock.freak667

Homework Helper

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What are the relevant equations that you think are needed here?

Newton's law of gravitation maybe?

Newton's law of gravitation maybe?

- #3

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I think the equation for the period of a planet is needed; but i'm not sure how to use it.

- #4

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If this isn't given, it can be derived by equating the equation for centripetal force to the equation for universal gravitational force.

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