What is the gravitational force of attraction between a 150,000,000 kg block of granite and a 200,000,000 kg rock if they are 18.0 meters apart?

What is the gravitational force of attraction between a 150,000,000 kg block of granite and a 200,000,000 kg rock if they are 18.0 meters apart?

G is the gravitational constant (6.673×10−11 N · (m/kg)2)F =[6.673×10−11 x 150000000 x 200000000]/182 =6.179 x 10-10N