A point charge with charge = 4.00 is held stationary at the origin. A second point charge with charge = -4.10 moves from the point ( 0.105 , 0) to the point ( 0.270 , 0.245 ). How much work is done by the electric force on the moving point charge?
Express your answer in joules. Use = 8.99×109 for Coulomb's constant.