Hello everyone, i'm lost as usual. Because they are two sheets, infinite and nonconducting. I thought I would use this equation: E = [tex] \delta [/tex]/(2Eo). But they give the separation which i don't see how that fits into this equation. I figured I could find the accerlation using F = MA. But anyways, here is the question. An electron is rleleased between two infinite nonconducting sheets that are horiztonal and have uniform surface charge densities [tex] \delta[/tex](+) and [tex] \delta [/tex](-). The electron is subjected to the following three situations involving surface charge densities and sheet separations. Rank the magnitudes of the electron's acceleration, greatest first. The answer is they all tie. Here is a link to the image: http://img333.imageshack.us/img333/4792/image8pt.jpg Am I approaching this problem totally wrong?