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Nina [5.8K]
2 years ago
5

Why does the coil of wire in a speaker become attracted to or repelled by the permanent magnet on the back of the speaker?

Social Studies
1 answer:
Thepotemich [5.8K]2 years ago
3 0

The second speaker's cone and coil will vibrate, causing a change in magnetic field on the magnet, which will induce a current along the wire to the first speaker. The current induces a magnetic field on the first coil, which is then attracted and repelled from the magnet, causing the cone to vibrate and produce sound

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Leonard walked to the podium, made direct eye contact with the audience, then asked the audience: "have you ever wondered what a
Setler [38]

Answer: Rhetorical question.

An introductory device is a strategy used to begin a speech or an essay. It is meant to engage your audience. A rhetorical question is a good mechanism to do this because, whether the question is meant to be answered or not, it helps the audience focus on your speech by making it more personal and forcing them to think about the answer.

8 0
3 years ago
A sound barrier along a highway reduced the intensity of the noise reaching a community by 95%. By how many decibels was the noi
aalyn [17]

Answer:

The noise was reduced by 5.7884 decibels

Explanation:

Using the percentage-decibel table, the 95% decibel level y obtained by interpolation

Percentage Decibel

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95-75/100-75 = y-4.86/6.0205-4.86

0.8 = y-4.86/1.1605

y-4.86 = 0.8×1.1605

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3 0
2 years ago
What are roles of the government in a mixed market economy? Select all that apply)
Marat540 [252]

From the given the roles of the government in a mixed market economy helps to ensure that prices are fair and ensures businesses are able to make a profit.

Option A and D

<u>Explanation: </u>

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Yet India's mixed economy is special, as the government sector plays a more involved, critical and comprehensive role in economic growth and operating in the mixed economy in India.  

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