What must the separation be?

Question

What must the separation be between a 6.2 kg particle and a 1.1 kg particle in order for their gravitational attraction to be 2.7*10^-12 N?

if you set the problem up, i should be able to finsih it and get the answer.

thank you so much!!!

Answer 1

F = G*M1*M2/r^2
2.7*10^-12 N = (6.673*10^-11 N*m^2/kg^2)*6.2 kg*1.1 kg/r^2