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olga2289 [7]
3 years ago
15

Pleaseeeee help!! It’s due very soon

Physics
1 answer:
iris [78.8K]3 years ago
6 0

Answer:

accelerated motion

Explanation:

a change in velocity (10 m/s to 50 m/s) over time (5 s) is called acceleration.

40/5 = 8 m/s²

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Option B

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Option A is the wrong answer because the horizontal vector is in the opposite direction.

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What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally h
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Complete question:

What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field 0.425 T. (This is 60 rev/s.)

Answer:

The peak emf generated by the coil is 15.721 kV

Explanation:

Given;

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magnetic field strength, B = 0.425 T

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where;

A is the area of the coil

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ω is angular velocity

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Induced peak emf = NABω

                               = 500 x (π x 0.25²) x 0.425 x 376.738

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Therefore, the peak emf generated by the coil is 15.721 kV

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