37. You might want to draw a diagram from a different perspective [viewing angle] than the one in the text.
38. No hint until someone tells me what is difficult about this problem. The result for magnetic moment / L is much used in particle physics.
39. Can you see how to eliminate Fx without a full calculation?
40. If you answer the questions one by one, you will have an easier time than you think at first glance. Compare the answer to the answer in # 38.
| Last revised 1997/03/11 |