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Allisa [31]
3 years ago
13

Student A pushed on the cart with a force of 500 N. Student B pushed on the other side of the cart. The cart did not move. How m

uch force did student B apply? Explain how you know.
Chemistry
1 answer:
Nadusha1986 [10]3 years ago
5 0
I depends on the height of the other side of the cart. If it was lower, 400 N. If Higher, at least 600 N. 
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2 years ago
1. A 2-kg bowling ball sits on top of a building that is 40 meters tall. (5 pts) Circle one: KE / GPE / both ( can you show work
masha68 [24]
Potential energy is energy due to an object's height above the ground.
Potential energy = mass x gravity x height
Kinetic energy is energy due to the motion of the object.
Kinetic energy = 1/2 x mass x velocity²

1.
The ball is not moving and is at a height above the ground so it has only potential energy.
P.E = 2 x 9.81 x 40
P.E = 784.8 J

2.
The ball is moving and has a height above the Earth's surface so it has both kinetic and potential energy.
P.E = same as part 1 = 784.8 J
K.E = 1/2 x 2 x 5²
K.E = 25 J

3.
The ball has no height above the Earth's surface and is moving so it has only kinetic energy.
K.E = 1/2 x 2 x 10²
K.E = 100 J

4.
50000 = 1/2 x 1000 x v²
v = 10 m/s

5.
39200 = 200 x 9.81 x h
h = 20.0 m

6.
12.5 = 1/2 x 1 x v²
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98 = 1 x 9.81 x h
h = 10.0 m
3 0
3 years ago
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