I haven't devoted more than a first pass to proof-reading answers, and I'm missing a lot of questions about mechanics and quantum mechanics. I am going mostly from the Kahn and Anderson book. Please let me know if you find any mistakes in my answers, if you find any typos, if you think a question is missing, or if you have any suggestions.
Here is the link: http://mathandcode.com/pgre/
Good luck on the October 29th test everybody!