February 23, 2017

Homework Help: Physics

Posted by ALan on Wednesday, March 3, 2010 at 12:49am.

A hypothetical spherical planet consists entirely of iron (p=7860 kg/m^3). Calclate the period of a satellite that orbits just above its surface.
I started out with the density formula P=M/V, but i kept subbing in other formulas, but i get stuck..can someone help me? thanks.
I posted this before, but i made a mistake in the question and I am now fearing that whoever helped me will not go 3 pages into the history just to find this question and help me again. Thanks =P

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