Solutions to assigned even problems

Please let me know if any of the problems have incorrect solutions or typos; also let me know if I forgot to put a solution on this page.

Chap 19:
6 ---  -1.0 cm

Chap 20:
34 --- 3.1 X 10-4 N m

Chap 23:
38 --- (a) 1.9 microF ; (b) 22 microC

Chap 24:
8 --- (a) 0.50 cm ; (b) 8.0 cm

Chap 25:
18 --- The current is 0 except between 0.1 and 0.3 s. Between these times, the current is 25 mA.

Chap 27:
36 --- 0.417 c