Homework 12 with a real brain burner about conservation ot total mechanical energy

Your homework #12 is now UP, due Monday at the usual time. It contains some basic exercises and then a brain burner concerning Fig. 7-12. Read carefully.

Since the brain burner, question 6, is a real tough one, I am giving you unlimited attempts. Remember, the brain burner has different values for the physical quantities each time you attempt it, so read carefully. You can use it for practice with each new value.

Final note: Read carefully!