25th February 2011 - 02:24 AM
hi, I'm a high school student, and in my class we've recently studied four different formulas that have to do with forces due to charges. these are kq1q2/r^2, kq^2/r, kq1q2/r, and kq/r i think. can anybody refresh my memory on what exactly these are used for?
25th February 2011 - 04:42 PM