3 years ago

Do electric lights in some electronic devices change electricity into motion

1 answer:

6 0

Answer:

A generator converts mechanical energy into electrical energy, while a motor does the opposite - it converts electrical energy into mechanical energy. Both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field....

Explanation:

I hope this helps with what you were looking for!!!

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Answer:

f>1000Hz and wavelength=0.343 m

Explanation:

We are given that

Frequency of stationary siren,f=1000 Hz

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Therefore,an observer who is moving towards the siren measure a frequency >1000 Hz.

The wavelength depends upon the speed of source.

But we are given that siren is stationary.

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f>1000Hz and wavelength=0.343 m

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The normal force pushes up and is between the ground and the scale. The gravitational force is the force exerted on the ground.

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