7: The Theory of Gravitation - The Feynman Lectures on Physics
: If the distance between two objects doubles, the gravitational force between them is reduced to one-fourth of its original strength. Gravitation (Physics Series)
Fg=Gm1m2r2cap F sub g equals the fraction with numerator cap G m sub 1 m sub 2 and denominator r squared end-fraction Fgcap F sub g is the gravitational force, are the masses, is the distance between them, and is the universal gravitational constant ( 7: The Theory of Gravitation - The Feynman
: Every particle of matter attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Mathematical Formula : are the masses