User:Kagurala/physics
This is a personal page. The articles associated in this page are created for User Kagurala to practice editing Physics aritcles.
15/12/12
[edit]This article writes the law that the gravitational force created by a mass point and an even mass sphere is equavalent to the gravitation created by the mass point and another mass point whose mass is the sphere's and lacation is on the sphere's centre.