4. The diagram below shows two point charges, X and Y, and the electric eld around them. What are the charges on X and Y? ( f2) \\kx/ /K V\\'-\\ 6. Two 1.0 kg charges each carry a charge of 1.0 C? How would the gravitational force compare to the electric force? (Calculations are not necessary.) ( 1'1) 7. A point charge has an excess of 5.0 x 10120. What would be the electric potential at a distance of 0.50 m from the charge? ( i2)