Recent content by storm4438

i was looking at the lorentz dilation and contractions for SR. My books says they are \grave{l}=l\gamma and that \grave{t}=\frac{t}{\gamma} .what i don't understand is that the velocity in the unprimed system is then \frac{l}{t} but in the primed system its \frac{l\gamma^{2}}{t} which is not...

Hey, I just remember reading about how the magnetic force can be thought of as a relativistic effect in the sense that the moving charge will see the charges in the wire contract and so it will see a higher density of positive (or negative) charges along the wire. However if this is true how...

Yes thank you that helps very much, the examples make it much more clear. Now if you don't mind me asking one more question. What is Newtons theorem of symmetric polynomials. They use it in Edwards book on galois theory but i didnt understand his explanation of it.

Homework Statement No problem exactly I am just reading a book that refrences symmetric polynomials but i don't know what a symmetric polynomial is. I looked at the wiki page but i didn't really get what it was saying. Any help on clearing up the meaning would be greatly appreciated...

1. Homework Statement [/b] 3. if X m and n are positive rational numbers, X(m^2 ~ n^2) , 2Xmn , and X(m^2+n^2) are positive rational numbers. Hence show how to determine any number of right-angle triangles the lengths of all whose sides are rational Homework Equations The Attempt...