3/28 We have decided to drop an extra quiz. We will now keep the best 9 quizzes. Your quiz percentage will be the total of your best 9 quizzes divided by 90. 4/01 Due to time limitations I have chosen not to cover the Pendulum. As a result, today's reading is changed to Ch 10, Sections 5,7, and 8. Omit HW problems 65 and 72 which are about the pendulum. Add HW problems 50 and 52 which are about energy conservation for springs. The final correct problem list for assignment 16 is thus 47,50,52,53,57, 59,61,62,73, and 83. 4/11 On HW#19 for Th 4/10: drop #43 and add #94 4/24 On HW#22 for Th 4/24: drop 68,69 and add 76,77 4/29 On HW#23 for T 4/29: drop 20,22, and 67 add 41,46, and 57 (all from CH 16) 5/6 On HW#24 for T 5/06: drop 23, add 5