Physics 213 Discussion # 18 Friday 9-28-2007

0. Announcements.

Test 2 next wed
Hwk 10 & 11 due Monday.

1. Today's OTQ is Q18 = 10a

2. Do Exp 7: N's Third Law

3. Go to Observatory &;Farm

F 9-28

Exp 7 N's 3rd Law Q18 = 10a

Up next: Rotational Motion

M 10-1

CM &;Rotational Mot I S&J;Chap 10 D13: 9-10 to 10-7 wkb chap 8 Q19 = 10b

Hwk #11 Chap 9 P 15,17,19,20, ans .556 m, 24, ans vb=2ˆgl, v =(4M/m)ˆgl , 25