2 days scribe

05-06-08

Ms. K was back and we continued the presentations. Thanks to Jordan's laptop for the presentation. There are still few people who didn't present yet so i guess some of our time on wed will be spend for presentations again. There's only two presentations for today so for the rest of our class time, we went over the solutions for Gravitational fields worksheet.


05-05-08

Monday's class, Ms. K was away and Mr Harrison was the sub for her. At first, we just went over the answers for the universal law of gravitation sheet and here's the answer:

1. FG= 7.41 x 10^-12N
   
2. a. m= 72.7kg
   b. FG= 712.3N
   c. Fw= 159.9 lb
   
3. a. double
   b. 1/4 F
   c. 4F
   d. 16F
   
4. Gmoon= 1.62 m/s^2

after that, he gave us 2 hand outs... 1. Mass of a central object and radius of motion of a satellite 2. review chapter 8.

the rest of our class time was spent to answer problems from the green book p.172 # 6, 7, 11, 13, 18 or the review chapter8 but don't do #s 4 & 7

i noticed that when no one was called to do the scribing, no one is really doing it. So I choose xxcoolguyxx to do the scribe for wed's class=)

FBD 02-14-08

As of today's class, Ms. K is back and we corrected our first test that we did last tuesday which is the acceleration test. You can check the answers that Ms. K had posted. I think Ms. K is still sick so THANK YOU for the effort. Next thing, she discuss a little about Free Body Diagram and as you can see at the bottom, the slide tells us that in the 1st case, the car was just steady on the ground; 2nd case, the car is moving at constant speed; and 3rd case, the car is moving to the left and its speed is increasing.

We also corrected the front page of the FBD sheet that we received yesterday and handed in the back of the page. I think that's all for today. I got to go=)

Happy Valentines Day!!!
next scribe, as she wished, is...90039305.