1. The problem statement, all variables and given/known data A nonconducting wall carries a uniform charge density of 13.62 μC/cm2. What is the electric field 5.7 cm in front of the wall? Answer in units of N/C. 2. Relevant equations Gauss's law...? 3. The attempt at a solution Honestly, this bugger's got me scratching my head since our prof never even mentioned it in lecture, and I'm trying to get the homework done a week ahead of time. I've looked around for the relation of electric field to charge density...and it's not been pretty. I tried E=Q/e where little e is our freespace constant, but that's wrong, so I'm not seeing this right. And I've searched everywhere on the web and not one god damned how-to for this type of problem. Anybody want to be merciful?