Quote Originally Posted by ironchef
Well for 18 if i remember this correctly the answer will be L * (pi/t) = g.

And 13 I believe is 2 x the cube root of 75/pi and that will be the diameter.

Yea hs physics was easy, so i tried ap physics senior year, that was rough, plus my teacher wasnt good at all, and you need to know calculus before hand which i didnt .
i got it thanks man.

back in class and bored!