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Sliva [168]
3 years ago
15

Can someone help me with any of these problems or all of them? It will get you an easy ten points per question

Physics
1 answer:
MrRa [10]3 years ago
6 0

Answer: For number 9, the children would not be able to close the box.

Explanation: The combined force of the children is 55 N. The box spring overpowers them with 60 N. I hope this helps!

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A 5 kilograms bowling ball is dropped out a window. It hits the ground, and bounces upward. The velocity change of the ball is n
ioda

Answer:

13.5

Explanation:

Mass: 5kg

Initial Velocity: -15

Final Velocity: 12

Force: 10

We can use the equation: Vf = Vi + at

We need to find acceleration, and we can use the equation, F=ma,

We have mass and the force so it would look like this, 10=5a, and 5 times 2 would equal 10, so acceleration would be 2.

Now we have all the variables to find time.

Back to Vf = Vi + at, plug the numbers in, 12 = -15 + 2(t)

Plugging them in into desmos gives 13.5 for time.

4 0
2 years ago
What is a characteristic of a gas?
DerKrebs [107]

Answer:

Gases have three characteristic properties: 1. they are easy to compress, 2. they expand to fill their containers, and 3.they occupy far more space than the liquids or solids from which they form. Compressibility. An internal combustion engine provides a good example of the ease with which gases can be compressed.

Explanation:

3 0
3 years ago
Read 2 more answers
I need help, please answer
Burka [1]

This being a perfect collision means no energy is lost during the collision. Because this question asks for speed and not velocity, the speed will be the same because the final energy is the same. The speed after the collision would therefore be 1.27 m/s.

7 0
4 years ago
A hockey puck is pushed by a stick with a force of 750 newton’s. the puck tracked 2.0 meters in 0.30 seconds. how powerful is th
Anit [1.1K]
Work= force x distance
work= 750 x 2
work =1500
power =work/time
power= 1500/ 0.3
power= 5000W

answer: b. 5000W
7 0
3 years ago
1. What outdoor activities do you prefer? Why? 2. What outdoor activities are you interested in, but have never tried?​
DochEvi [55]

Answer:

My favorate activies is skateboareding, and I prerfer outdoor actives.

Explanation:

3 0
3 years ago
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