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September 16, 2014

Homework Help: physics

Posted by help please on Sunday, December 11, 2011 at 7:37pm.

You have arrived at a new planet and put your starship into a circular orbit at a height above the surface that is equal to two times the radius of the planet. Your speed is 4300 m/s and it takes 7 hours and 18 minutes to complete an orbit.

a. What is the radius of the planet?

b. What is the mass of the planet?

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