1. The problem statement, all variables and given/known data I know I posted a question yesterday also, but this homework is getting on my nerves. My prof isnt the best out there. So basically the question is as follows: http://img812.imageshack.us/img812/8130/problem6.png [Broken] 2. Relevant equations Not sure, I sort of answered the questions with guessing/intuition 3. The attempt at a solution Guessed on the attempt, I know 1 is correct but not sure which one. Any help on this is much appreciated!