Quote by disneygirl828
T= 3/ (all of this under a square root sign >)1(2.55 x 10^8)^2/(2.55 x 10^8)^2
t=3/0
*i get stuck here because you cant have a zero in the denominator*

Hmm, you've done:
[tex]T= \frac{3}{\sqrt{1 \frac{v^2}{v^2}}}[/tex]
I'm guessing you've accidentally done this?