A point charge -Q is placed on the x axis at the origin. A point charge of +Q is placed on the x axis at x = -1.0 m and another at x = +1.0 m. If Q = 10.0 μC, what is the magnitude of the electrostatic force on the charge at x = +1.0 m? (k = 8.99x109 Nm2/C2) 11N (How Is This 11N) i keep getting a different answer.