Three point charges are arranged in an equilateral triangle. the bottom left charge is located at the origin (0.000 m, 0.000 m) and has a charge of +3.00 µc, the bottom right charge is 20.0 cm away at (0.200 m, 0.000 m) and has a charge of −2.00 µc, and the top charge is located at (0.100 m, 0.173 m) and has a charge of +4.00 µc. find the electric field vector (magnitude and direction! ) at the origin, and then use it to calculate the force on the +3.00 µc charge located there.'