Asked by colleen

Two uniform spheres , each of mass M and radius R, touch one another. What is the magnitude of their gravitational force of attraction?
Answered by bobpursley
Isn't the distance the centers of mass are apart 2R?
Answered by Marth
Fg = G*m1*m2/r^2

And as bobpursley noted, the r (distance) is 2 * R.

Try to solve for Fg.
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