I've been having a lot of trouble with this problem:

http://www.math.ou.edu/~tjmurphy/Tea...433PS1Soln.pdf

http://www.math.utoledo.edu/~dhemmer/1840/page471.pdf

These are two links that will take you to the exact problem. The word proboblem begins with, "The resistivity p of a conducting wire is the reciprocal of the conductivity and is measured in...."

I really don't know how to solve this problem in Mathematica. Help would be greatly appreciated.

Thank you,

Kimmy.