1. The problem statement, all variables and given/known data A 10.0 nC charge is located at position (x, y) = (1.0 cm, 2.0 cm). At what (x, y) position(s) is the electric field a. -225,000i N/C b. (161,000i + 80,500j) N/C c. (28,800i + 21,600j) N/C 2. Relevant equations E = (1/4[tex]\pi[/tex][tex]\epsilon[/tex])(q/r^2) F = Kq_1q_2/r^2 3. The attempt at a solution With a) I used the Pythagorean theorem to find r^2 using (x, y) which is squareroot 5. However, I'm not exactly sure where this gets me. I honestly have no clue as to where to start with this question and any help would be greatly appreciated!