1. The problem statement, all variables and given/known data What is the Net force (include direction) acting on charge Q2 due to Q1 and q? (ans: Fnet = 174N right) 2. Relevant equations F=kQ1Q2/r2 E=F/Q 3. The attempt at a solution I've figured out a) and b). It's just c) that's giving me trouble. I tried using the first equation - (9.0 x 109)(4.1 x 10-4)(3.0 x 10-6)/22 but this isn't anywhere near the answer. I've tried using F=EQ → (2.0 x 106)(4.1 x 10-4) = 820N. Still very far off.