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kirza4 [7]
4 years ago
11

True or false if an object has energy it must be moving

Physics
2 answers:
masha68 [24]4 years ago
8 0
False. Non moving objects can have energy in the form of gravitational potential energy, elastic potential energy, thermal energy, internal energy, nuclear energy, or chemical energy.
Drupady [299]4 years ago
3 0

Answer:

Explanation:

If an object is moving, it is said to have kinetic energy (KE). Potential energy (PE) is energy that is "stored" because of the position and/or arrangement of the object. The classic example of potential energy is to pick up a brick. When it's on the ground, the brick had a certain amount of energy.

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A railroad car whose mass is 30,000. kg is traveling with a velocity of 2.2 m/s due east and collides with a second railroad car
Yakvenalex [24]

Answer:

V = 1.1 m/s

Explanation:

given,

mass of railroad car 1 , m =  30,000. kg

travelling at the speed , u = 2.2 m/s

mass of car 2, M =  30,000. kg

initial speed, u' = 0 m/s

final speed of the car after collision, V = ?

using conservation of momentum

  m u + M u' =  (M+m)V

 30000 x 2.2 + 0 = (30000 + 30000) V

  60000 V = 66000

  V= \dfrac{66000}{60000}

          V = 1.1 m/s

he velocity of the two cars is equal to V = 1.1 m/s

3 0
4 years ago
King crimson vs DIO? for science of course. and for an essay
torisob [31]

Answer:

king crimson

Explanation:

bc

4 0
3 years ago
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When solid surfaces slide over each other, the kind of friction that occurs is called sliding friction.
LekaFEV [45]

Answer:

True

Explanation:

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Hope this helps! :)

6 0
4 years ago
What is required for an electric charge to flow through a wire?
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Answer:

AN electric current is required for  an electric charge

Explanation:

7 0
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When one wave crest overlaps the crest of another and they add together what happens to the amplitude?
inessss [21]
I’d say the answer is “B”
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