Read over the material below for general advice and to see what I expect in the solutions. Many of the problems ask for explanations, and these are expected in the grading. Similar requests for explanations or descriptions of physical phenomena are included in exam questions. Description and explanation are important and are tested. I generally expect you and your study partners to have made a legitimate attempt at the problems before coming for hints so your questions are focussed.
Most physics is done in collaborations.
Joint work on, and discussion of, the problem assignments will give you practice in working in a collaborative setting, something expected by most potential employers of physicists. I may assign some group problems during the semester. You may want to look at my comments on homework strategy for some advice on how to work most effectively on the problems. Homework problems at this level are more similar to the problems encountered in research than to the drill type problems in earlier courses, so this is a good time for you to think about how one can approach rather open-ended problems in a real physics context most effectively.