I got this problem wrong in my text's student companion website, but I don't understand why. Could someone let me know what went wrong? 1. The problem statement, all variables and given/known data What are the horizontal and the vertical components of the resultant electrostatic force on the charge in the lower left corner of the square if q = 0.10 micro Coulombs (Or uC as I cannot remember how to type the Greek letter equivalent.) and a = 5.0cm? 2. Relevant equations Fh = F-q + F-2q(cos(45)) Fv = -F+q + F-q(sin(45)) 3. The attempt at a solution I get .17E-6 N for Fh and -2.1E-7 N for Fv. I think I may have mixed up some decimal places on Fh, but the solution presented is .17 N for Fh and -0.046 for Fv. I just don't understand what I did wrong though.