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Oksana_A [137]
3 years ago
8

Which is a device made from a coil of wire that carries a current and produces a magnetic field?

Physics
2 answers:
slega [8]3 years ago
8 0
A device made from a coil of wire that carries a current and produces a magnetic field is called a <span>solenoid. </span><span>✅
</span><span>
Answer: Letter B

Hope that helps. -UF aka Nadia</span>
sattari [20]3 years ago
7 0
The answer is B.) A solenoid. Hope it helps! :) 
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800 joules of work were done with a force of 200 newtons. Over what
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A person sitting on a pier observes incoming waves that have a sinusoidal form with a distance of 2.5 m between the crests. Of a
Doss [256]

Answer:

Part(a): The frequency is \bf{0.2~Hz}.

Part(b): The speed of the wave is \bf{0.5~m/s}.

Explanation:

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The distance between the crests of the wave, d = 2.5~m.

The time required for the wave to laps against the pier, t = 5.0~s

The distance between any two crests of a wave is known as the wavelength of the wave. So the wavelength of the wave is \lambda = 2.5~m.

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Part(a):

The relation between the frequency and time period is given by

\nu = \dfrac{1}{T}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(1)

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Part(b):

The relation between the velocity of a wave to its frequency is given by

v = \nu \lambda~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(2)

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5 0
3 years ago
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