Problem 12a. Given:k_e=8.98755*10^9Nm^2/C^2. A 5u_C point charge is on the x-axis at x=2.3m, and a 4u_C point charge is on the x-axis at x=3.3m. Determine the magnitude of the net electric field at the point on the y-axis where y=2.1 m. In N/C. Note: I been getting wrong answers from a problem that is bascially the same as problem 12a. Can someone show me the steps?