Country Boy

Okay, since your are talking about DC current where do "electromagnetic waves" come into it? Electromagnetic waves do not travel along wires.

v apparently is a function of [tex]\rho[/tex] and [tex]\rho[/tex] is a function of both x and t so what does v' mean? Is it a derivative? With respect to x or v?

What kind of help do you want? Unless you are expecting someone to do it for you, you should tell us what you have already done, what basic concepts you are using, how you will be drawing the lines, etc.

I don't see that as particularly hard to differentiate. It is basically a= b(1- cxy)^2+ cx^2. The derivative is given by 0= 2b(1- xy)(-xy'- y)+ 2cx. Solving for y', -xy'- y= -cx/(b(1-xy)), xy'= cx/(b(1- xy)- y, y'= c/(b(1- xy))- y/x. That will be 0 when c/(b(1- xy)= y/x, cx= by(1- xy)).

No. [tex]0*\infty[/tex] is NOT 0, it is "undefined". [tex]\frac{\pi}{\infty}*\infty[/tex] is "undefined".

Joigus: "CuriosOne, I've never seen anyone who understands so little and claims to understand so much at the same time. I'm very nearly done with you too." That's why I have come to the conclusion that CuriosOne does understand all of this and just thinks it is funny to pretend to be stupid!

I assume you have already had the exam. But first, what is "the first law of Mendel"?

8/9 Pi is!

Could I just point out that "the Hebrew for 'I am'" is NOT anything like "pi"? The whole basis for this thread is untrue.

Good point. I should have said "USA" rather than just "American". On another point, I had a very good friend who objected to a person saying "American" when they meant "of the United States". I argued that "American" is a perfectly valid form because "The United States of America" is the only country that has the word "America" in its name.

I wasn't aware the Vicente Fox was a native-born American citizen!

SR and, especially, GR require that space exist. They do not require that it be "made of" anything.

No, you are correct- the "factorial" is only defined for positive itegers. What others are saying here is that the "gamma function" has the property that it is identical to the factorial for positive integer values of the argument but is defined for other numbers as well. (It is NOT defined for negative integers because the integral does not exist in that case.)