Forgot to Give Homework

Email me and I'll forward you the homework. Deal is you will have it on Monday to finish in only a day - so its better to have it now when you have more time to work on it.

Sorry guys, I'll make it up to you somehow.

Zim

Electrostatics and Capacitance Practice Answers

Here you go.
1. C
2. B
3. C
4. C
5. D
6. D
7. D
8. E
9. C
10. E
11. D
12. C
13. E
14. C
15. A
16. B
17. A
18. B
19. D
20. B
21. E
22. C
23. B
24. A
25. A

Sweater Vests?

Practice Multiple Choice Answers

1 D 19 D
2 D 20 E
3 B 21 C
4 E 22 C
5 D 23 E
6 A 24 B
7 A 25 D
8 D 26 E
9 D 27 C
10 A 28 C
11 A 29 B
12 D 30 C
13 B 31 A
14 D 32 E
15 D 33 E
16 E 34 C
17 E 35 E
18 B

Answers to 1/11 homework.

1a. 1.5 s
b. no tension - no period
2. (2gl(1-cos theta))^1/2
3. a. 5.43 hz
b. 0.0684 s^-1
c. 20.3 s
4. a. 2.4 x 10^4 N/m
b. 0.63 s
5. a. 130 N/m
b. 9.6 cm

Break Problem Set Answers

I got the following answers to the problem set. Let me know if you can't get them.

1.a. (3.91 x 10^-2 m/s)t
b. v(t)=-0.25 m/s sin(1646 rad/s)t
a(t)=-(406 m/s^2) cos (1646 rad/s)t
c. x(t)=-1.13 x 10^-5 m

2.a. k=19.6 N/m
w(omega)=8.08 rad/s
b. A=0.100 m
c. v(max)=0.81 m/s
d. a=6.53 m/s^2
e. T=0.78 s, f = 1.29 Hz
f. x(t)=-(0.1 m) cos (8.08 rad/s)t
g. dx/dt=0.757 m/s

3.a. 206.3 deg or 3.6 rad
b. A=0.11 m
c. x(t)=(0.11 m) cos (8.08 rad/s t + 3.6 rad)

If you respond to this blog by Tuesday at 2:45 pm, I'll add a point to your picture extra cedit. Just make sure it says your name and time you responded.

Finished Writing Test

Decided to put a few questions from previous multiple choice exams. I do this in AP Physics B, and it seems to work well. There are a couple from Rotation and a few from Kinematics. 20 Multiple Choice in all.

I am going to scan last nights' homework now, so check the extras drive for those.