physics
posted by chelsea .
Two spheres are placed so that their centers are 2.6 meters apart. The force between the two spheres is 2.75x10^12N What is the mass of each sphere if one sphere is twice the mass of the other sphere?

F=G2m/2.6^2 solve for m.

sorry...
F=G2M^2/2.6^2 
0.28