Today in our class Ms. K was not around and Ms. Voon was our substitute teacher. We went over the worksheet given to us yesterday "Work and Energy: Springs". We answered the Chapter 8 study guide.
Here are the corrections for the “Work and Energy: springs” worksheet.
1. Fg = mg k= F/x
k = mg/x
2. a. k = F/x
= 10N/.132 m
=75.76 N/m
b. F =kx
=3.0 N/m *.55 m
=1.65 N
c. x = F/k
= 20 N/ 3.0 N/m
= 6.7 m
d. k = F/x
= 19.6 N / .04 m
= 490 N/m
3. F = 95 N/m * .025 m
= 23.75 N
4. Es = 1/2kx^2
x =
=
.png)
= 0.53 m
5.a. k =F/x
= 56N/ .18 m
= 311 N/m
b.Es = 1/2kx^2
= 1/2 *311 N/m * (0.18 m)^2
= 5.04 J
6. Es = 1/2kx^2
= 1/2* 144 N/m * (0.165 m)^2
= 1.96 J
7.a. k = F/x
= 12 N/ .6 m
= 20 N/ m
Tomorrow we will have test in Circular motion and Work/ Energy. So guys please stuDY? LOL wahhahaha. Goodluck to all. :)
Camille will be the next scribe.
No comments:
Post a Comment