February 28, 2017

Homework Help: density

Posted by Rebecca on Sunday, December 1, 2013 at 8:32pm.

Suppose two worlds, each having mass M and radius R, coalesce into a single world. Due to gravitational contraction, the combined world has a radius of only 3/4R. What is the average density of the combined world as a multiple of p0, the average density of the original two worlds?

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