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wolverine [178]
3 years ago
11

Determine the kinetic energy of 1000-kg roller coaster car that is moving with speed of 20.0m/s

Physics
1 answer:
nevsk [136]3 years ago
7 0
B, i got the same question
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Participating in team sports can have a positive effect on all aspects of life. Please select the best answer from the choices p
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Answer: True

Explanation:

Participating in team sports can lead to the development of healthy fellowship and brotherhood behavior among the participants. It induces team spirit and allows to lead a healthy competition. It can be a good recreational activity which can be used for removing the emotional and physiological stress. Hence, can improve positivity in all aspects of life.

5 0
2 years ago
Emily uses a rifle to shoot a bullet at a target. The bullet has a mass of 13 grams. The rifle has a mass of 3,500 grams. When s
sp2606 [1]
Force exerted by the bullet = mass * acceleration = 0.013 * 850 = 11.05 Newtons.

the rifle exerts same force in opposite direction so we have

11.05 = 3.5 * a
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4 0
3 years ago
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Bacteria which do not live in extreme conditions are found in this kingdom:
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The bacteria that doesn’t live in extreme conditions is Eubacteria
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1. A sample of gas has a constant temperature and number of particles. As the volume of the gas sample is increased, the pressur
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1.C

2.C

3.C

Explanation:

hope its help hehe:(

4 0
2 years ago
Question 7 of 10
Dahasolnce [82]
Kinetic friction (also referred to as dynamic friction) is the force that resists the relative movement of the surfaces once they're in motion.
https://www.khanacademy.org › stat...
Static and kinetic friction example (video) | Khan Academy

Answer a would be static friction
Answer b is fluid friction
(Air resistance is fluid friction. Fluid friction is the friction experienced by objects which are moving in a fluid and the air is a fluid.)
Answer c is static friction
ANSWER D IS KINETIC FRICTION

Hope this helps :D



4 0
2 years ago
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