I'm having trouble getting started on a problem assigned to me in my College Physics class. First here's the problem: Four charges occupy the four corners of a square(q1 is in the upperleft hand corner, q2 bottom left, q3 bottom right, q4 upper right). q1 = q3 = -q and q2 = q4 = +q , where q = 8 C. The sides of the square are all 2.2 meters long. Calculate the x and y electric field components at the point M. (M is between q2 and q3 on the line) Ok now what I've come up with in the hours I've been staring at this problem: What I have drawn is that there are three Electric fields coming off of this point M. One goes due east and is a combination of the electric field from q2 and q3. Another electric field goes Northwest towards q1. The last one goes Southwest in a line away from q4. I have all these words and definitions in my head and I'm completely confusing everything to do with electric fields. Can someone please set me straight and help me through this problem? Hints, words of wisdom??