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PSYCHO15rus [73]
3 years ago
5

The moon is always circling around the earth, in a stable orbit. This movement is the reason we see the different phases of the

moon. The moon is not the only thing in the solar system that is in orbit. It is also true that
A) the sun orbits around the moon.
B) the earth orbits around the sun.
C) the sun orbits around the earth.
D) the earth orbits around the other planets.
Physics
1 answer:
Darina [25.2K]3 years ago
3 0
The answer would be B. This is because all planets in our galaxy orbit the sun.
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The kinetic energy in the first case is 4 times more than the second case.

Hence, option D)It is 4 times greater is the correct answer.

<h3>What is Kinetic Energy?</h3>

Kinetic energy is simply a form of energy a particle or object possesses due to its motion.

It is expressed as;

K = (1/2)mv²

Where m is mass of the object and v is its velocity.

Given that;

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  • For the second case, velocity = 8m/s
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For the first case, kinetic energy of the car will be;

K = (1/2)mv²

K = (1/2) × m × (16m/s)²

K = (1/2) × m × 256m²/s²

K = mass × 128m²/s²

For the second case, kinetic energy of the car will be;

K = (1/2)mv²

K = (1/2) × m × (8m/s)²

K = (1/2) × m × 64m²/s²

K = mass × 32m²/s²

Comparing the kinetic energy of the car with the same mass but different velocity, we can see that the kinetic energy in the first case is 4 times more than the second case.

Hence, option D)It is 4 times greater is the correct answer.

Learn more about kinetic energy here: brainly.com/question/12669551

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