A point charge with charge = 3.00 is held stationary at the origin. A second point charge with charge = -4.40 moves from the point ( 0.130 , 0) to the point ( 0.245 , 0.250 ). How much work is done by the electric force on the moving point charge?
Express your answer in joules. Use = 8.99×109 N*m^2/C^2 for Coulomb's constant: k = 1/4piE0