Compute each part of given question:
Question: A charge of -4.79 µC is located at the origin. A charge of 2.86 µC is located -3.93 cm along the y axis, that is, at the point (0.00,-3.93) cm.
Part I: Find the electric potential 6.95 cm along the x axis, that is, at the point (6.95, 0.00) cm.
Part II: Find the electric field 6.95 cm along the x axis, that is, at the point (6.95, 0.00) cm.
Part III: Find the electric force on a charge of 3.69 µC located at 6.95 cm along the x axis, that is, at the point (6.95, 0.00) cm.
I don't know how to get that answer. Please help.