Main Question or Discussion Point
Can someone explain the equation [tex]g/cm^3[/tex] in layman's term? I was reading up on this article on Saturn's moon Enceladus, having heat, and the first thing i though was the gravitional tuggin from Saturn and it's other moons. And i came across this equation and seem like it's used to base density levels of atmospheres on planets. Also how did they come up with this equation?