posted by Sara .
Compute the gravitational force between two 1.00 kg lead spheres whose centers are 1.00 m apart?
Use Newton's Universal Law of Gravity. Look up the value of the constant, G.
F = G*M1*M2/R^2
In your case, M1 = M2 = 1.00 kg
and R = 1.0 m
F = 6.67*10^-11 N