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NikAS [45]
2 years ago
15

Calculate the frequency if the number of revolutions is 300 and the paired poles are 50.

Physics
1 answer:
Andrei [34K]2 years ago
3 0

Answer: A

Explanation: We know that f=p*n

f=50*300=15000 Hz = 15kHz.

Have a great day! <3

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If two stars have the same absolute magnitude, what can be a reason for the difference in their brightness?
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B. their distances from the sun.

Explanation:

Absolute Magnitude:

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Apparent Magnitude:

Apparent magnitude of a star refers to how bright the star appears at its distance from the Earth.

If two stars have the same absolute magnitude but their apparent magnitude differs, the reason is that the distance of both the stars from the Earth varies. Hence their brightness differs when measured from Earth. The farther a star is from the Earth, the fainter its brightness.

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What is produced as the result of unequal warming of the earth's surface?
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Unusual precipitation patterns 
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In a car with a mass of 4,000 KG is accelerating at a rate of 2m/s2 and hits a tree what force does it have
Ilia_Sergeevich [38]

According to Newton's second law of motion, the acceleration of a body is directly proportional to the force acting on the body and inversely proportional to its mass. The formula for this law is

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3 years ago
What is the net force on a bag pulled down by gravity with a force of 18 newtons and pulled upward by a rope with a force of 18
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Answer:

0 N.

Explanation:

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The expression of net force when both force act in the different direction is given as

F' = W-F ........................ Equation 1

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Substitute into equation 1

F' = 18-18

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Hence the net force = 0 N.

4 0
3 years ago
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