A small object has a mass of 5.0 x 10" kg and a charge of -42 //C. It is placed at a certain spot where there is an electric field. When released, the object experiences an acceleration of 3.5 x 10 m/s in the direction of the +x axis. Determine the electric field, including sign, relative to the +x axis. Number HI Units N/CTwo charges are located on the x axis: q1 =+8.8 //C atx1 = +3.1 cm, and q2 = +8.8 //C at x2 = -3.1 cm. Two other charges are located on the y axis: q3 = +3.0 //C at y3 =+5.1 cm, and q4 = -8.9 //C at y4 = +7.9 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. 44 43 42 41 - - +1 (a) Number Units V (b) The net electric field points