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nata0808 [166]
3 years ago
12

Which of the following shows kinetic energy being converted into potential energy?

Physics
1 answer:
Komok [63]3 years ago
3 0
B) a rock being tossed high into the air
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You are designing a generator with a maximum emf 8.0 V. If the generator coil has 200 turns and a cross-sectional area of 0.030
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Answer:

7.1 Hz

Explanation:

In a generator, the maximum induced emf is given by

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B is the magnetic field strength

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In this problem, we have

N = 200

A=0.030 m^2

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So we can re-arrange the equation to find the frequency of the generator:

f=\frac{\epsilon}{2\pi NAB}=\frac{8.0 V}{2\pi (200)(0.030 m^2)(0.030 T)}=7.1 Hz

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