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3 years ago

The most abundant energy resource in the Balkans is _____.

Physics

2 answers:

9966 [12]3 years ago

7 0

Coal is abundant energy

lara [203]3 years ago

4 0

Coal is the correct answer.

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Electrical metallic tubing would be used in an electrical installation because it

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Hey There!

Electrical metallic tubing would be used in an electrical installation because it <span>is less expensive.</span>

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4 years ago

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Three point charges are fixed in place in a right triangle, as shown in the figure.

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3 years ago

On the moon what would be the force of gravity acting on an object that has a mass of 7 kg?

Rudiy27

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Explanation:

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3 years ago

If a car's speed triples, how does the momentum and kinetic energy of the

Harrizon [31]

Answer: When the car speed triples, momentum also triples but Kinetic energy increases 9 times or by 9 fold.

Explanation:

The momentum of a car (an object) is

p= mv

where

m is =the mass of the object( in this case car)

v is its= velocity

While the kinetic energy is is given by the formulae

K=1/2mv²

To determine how momentum and kinetic energy of the car changes when the speed of the object triples, We have that the new velocity,

v¹= 3v

So that the momentum change becomes

p¹=mv¹=m (3v)= 3mv

mv=p

therefore p¹= 3p

we can see that the momentum also triples.

And the kinetic energy change becomes

K¹=1/2m(v¹)²= 1/2m (3v)²

= 1/2m9v²= 1/2 x m x 9 x v²=9 x1/2mv²

1/2mv²=K

K¹= Kinetic energy = 9k

but Kinetic energy increases 9 times

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3 years ago

What is Motion ?????

Mama L [17]

Answer:

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5 0

3 years ago

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