part 1) Consider three charges arranged as shown. What is the field strength at a point 2.2 cm to the left of the middle charge? the Coulomb constant is 8.99 x 10^9 N * m^2 / C^2. Answer in units of N/C.
part 2) What is the magnitude of the force on a 2.5 uC charge placed at this point? Answer in units of N.