1. The problem statement, all variables and given/known data http://puu.sh/nYQqE/2b0eaf2720.png [Broken] 2. Relevant equations http://puu.sh/nYSjQ/e48cad3a8b.png [Broken] 3. The attempt at a solution http://puu.sh/nYYjW/174ad8267c.png [Broken] My main issue is with part b) and part d). I think that part b) is mostly right, but part d) is definitely wrong and incomplete, and I have no idea how to do it.