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Snowcat [4.5K]
3 years ago
15

Energy is A) conserved OB) created only OC) destroyed only OD) created or destroyed

Physics
2 answers:
saw5 [17]3 years ago
5 0

Answer:

A

Explanation:

Conserving energy produces a higher quality of life. Reduced emissions result in cleaner air quality. In addition, it helps create a healthier planet, or at least helps sustain the resources we already have

Delicious77 [7]3 years ago
4 0
Conserved.

Your explanation is that energy can be neither created, nor destroyed. Therefor, created wouldn’t be an answer, destroyed, or both. A is the only option left.

Hope this helps.
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erastovalidia [21]

Answer:

2*10^{5}

Explanation:

Kinetic energy = \frac{1}{2} M V^{2}

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V is velocity

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K.E. = 2*10^{5}

8 0
3 years ago
A force of gravity pulls downward on a book on a table. What force prevents the book from accelerating downward?
Nadusha1986 [10]

Answer: The Normal Force

Explanation:

According to Third Newton's Law,  also konwn as The principle of action and reaction :

<em>"If a body A exerts an action on another body B, it performs on A another action that is the same and in the opposite direction."</em>

In this case this is what happens with the book on a table,  gravity force pulls it downward, but the Normal Force (perpendicular to the surface of the table) acts in the opposite direction with the same magnitude, preventing the book from accelerating downward.

3 0
3 years ago
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Naya [18.7K]

Answer: D. There is a lot of light pollution on earth

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3 0
3 years ago
A rectangular certificate has a perimeter of 32 inches. Its area is 63 square inches. What are the dimensions of the certificate
irina1246 [14]
Perimeter = 2 ( L + W )
32 = 2 ( L + W )
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63 = L W
63 = (16-W) W
63 = 16W - W²
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3 0
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Explanation:

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