Alright, after reading the posts I was able to do a few things and hope that I got it right. I distributed (1/a) and then found the LCD of the two fractions. Took out the (1/r) that was in the fraction, distributed a in the denominator, factored out a squared in the denominator, canceled the a...
Well the intended result is necessary because without it Coulumb's Law would not hold. Unless this means I need to work with the rest of the equation.
The full final equation: F = ((q*Q)/a*4*pi*epsilon-naught)*(original equation)
where q is a small fixed charge, Q being the large fixed...
After getting through the set up and integration of this problem I am stuck on using the >> operator. My objective is to show what happens when r, a constant, is >> than a, another constant.
The original equation: (1/r)-(1/(a + r)
The intended restul: (1/r^2)
My initial thought was that...