1. A particle (charge = +40 ,C) is located on the x axis at the point x = -20 cm, and a second particle (charge = -50 #C) is placed on the r axis at x - 130 cm. What is the magnitude of the total electrostatic force on a third particle (charge - -4.0 /C) placed at the origin (x = 0)? 2. In the figure, if Q = 30 /C, q = 5.0 #C, and d = 30 cm, what is the magnitude of the electrostatic force on g? O