Saturday, April 24, 2010

Friday!

Hey!!!! Hope everyone's having a great weekend. So as you may have figured out I'm the scribe for Friday April 23rd. I believe the first thing we did, or one of the first things, was answer the questions that were on the board when the subs were in class. Apparently I forgot to write down the first set of questions, but here are the answers for the second set.

P. 172 8-13

8. 5.8x10^-10 N

9. 8.0x10^10 N

10. 6.48x10^-8 N

11.A) 491 N

B) 490N

12. 9.01x10^-31 kg

13. m1= 0.37 kg m2= 0.75 kg

Ms. K desided that the concept questions on page 163 are due on Monday... hand in assignment.. eekk.. hope everyone did it and has a way of getting a green book to do it, if not then here:

1.1 Earth is attracted to the sun by the force of gravity. Why doesn't Earth fall into the sun? Explain.

1.2 If Earth began to shrinkbut it's mass remained the same, predict what would happen to the value of "g" on shrinking Earth's surface.

1.3 Cavendish did his experiment using lead spheres. Suppose he had used equal masses of copper instead. Would his value of G be the same or different?

1.4 Critical thinking: In a space colony on the moon, an astronaut can pick up a rock with less effort than on earth. Is this also true when she throws the rock horizontally? If the rock drops on here toe, will it hurt more or less than on earth? Explain your answers.

Well thats it for now hope you all have a wonderful weekend, and YAY! My first scribe is done!!!!! haha.

BYE!!!

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