February 28, 2017

Homework Help: Physics please help!

Posted by Me on Wednesday, November 30, 2011 at 10:49pm.

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with a period of 368.0 Earth days. Once on the surface you find that the free-fall acceleration is 13.00 m/s2.

What is the mass of the star (in kg)?

I have posted this multiple times and can not figure it out.

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