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just olya [345]
3 years ago
12

What is the kinetic energy of an object with a mass of 10 kilograms traveling at a speed of 10 meters per second?

Physics
1 answer:
bagirrra123 [75]3 years ago
5 0

Answer:

500 J

Explanation:

Kinetic Energy = (mass x velocity x velocity) ÷ 2

We know that mass = 10 kg and velocity = 10 m/s.

KE = (m × v × v) ÷ 2

KE = (10 kg × 10 m/s × 10 m/s) ÷ 2

KE = 500 J

The kinetic energy of the object is 500 J (joules). Hope this helps, thank you !!

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If a dog is accelerating at a constant rate of 6.57 m/s2, what is the mass of the dog if 25 N of force is being applied to it?
Oliga [24]

Answer:

<h3>The answer is 3.81 kg</h3>

Explanation:

The mass of the dog can be found by using the formula

m =  \frac{f}{a}  \\

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From the question we have

m =  \frac{25}{6.57}  \\  = 3.80517503

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Hope this helps you

8 0
3 years ago
g As a proton moves in the direction the electric field lines A) it is moving from low potential to high potential and gaining e
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Answer:

Option D => it is moving from high potential to low potential and losing electric potential energy.

Explanation:

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Electric Field can be represented mathematically by using the formula below; E = kQ/r^2.

So, let us answer the question with what we have considered above. It is worthy of note to know that electric Field moves from a region of higher potential to a region of lower potential. So, any option that says this is correct.

But, there is only one problem and that is the fact that the question asked us about the direction of the movement of proton. Since, proton is s a positive charge, it is going to lose electric potential energy. So, Option D is correct.

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Answer:

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Dafna11 [192]

Answer:

It tells us

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The number of valence shell electrons in an element's atom that is measured by a vertical column in the periodic table.

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