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vivado [14]
2 years ago
7

How does the work needed to lift an object and the gravitational potential energy of an object compare

Physics
1 answer:
Ganezh [65]2 years ago
8 0

When you do work to lift the object, the amount of work you do BECOMES the object's gravitational potential energy.  It GETS its potential energy from the work you do to lift it.  They're equal.  You lose it, and the object gains it.  Energy is not created or destroyed.  It's just transferred from you to the object.  

Later, when you DROP the object, GRAVITY does the same amount of work on it, to pull it to the ground.  Again, no energy is created or destroyed.  Every time a force acts to move anything, the energy to do it comes from somewhere, and the energy goes somewhere.

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What happens in terms of energy when a moving car hits a parked car, causing the parked car to move?
meriva
This is an example Newton's Third Law. All the kinectic energy from the moving car transferred the potential energy of the parked car. This potential is not much since the brakes are on (hopefully) and it's not in a non-moving position.
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3 0
3 years ago
Which style of painting is the Peale family known for?
Misha Larkins [42]

The correct answer is option B, representational

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8 0
3 years ago
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Which of the following can be determined by studying the spectrum of a star?
Alex73 [517]
The right answer is 
  
all of the above 
 
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3 0
3 years ago
a brick is suspended above the ground at a height of 6.6 m. it has a mass of 5.3 kg. what is the potential energy of the brick
Svetradugi [14.3K]
The formula for potential energy is
E(p) = mgh

(Mass x gravity x height)

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= 342.8 J

How did I get 9.8?
9.8 is the constant for gravity
8 0
3 years ago
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