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April 27, 2015

Homework Help: Physics help please

Posted by Me on Saturday, November 26, 2011 at 1:02am.

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 planet (in kg)?

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

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