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Vitek1552 [10]
3 years ago
5

Sound waves can not travel through outer t space. True or false

Physics
2 answers:
RideAnS [48]3 years ago
5 0

The answer to your question is in fact <u>True</u>

Why?

Sound waves can only travel through things like water, walls, and solids. so sound cannot travel through space because there is no matter for the vibrations of the sound to work in.

ahrayia [7]3 years ago
4 0

True i took the test and got it right


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Answer:

The current would be same in both situation.

Explanation:

Given that,

Current I = 13 A

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We need to calculate the induced emf

Using formula of induced emf is

\epsilon=NA\dfrac{dB}{dt}

For N = 1

\epsilon=A\dfrac{dB}{dt}

We need to calculate the current

Using formula of current

i=\dfrac{\epsilon}{R}

Put the value of emf

i=\dfrac{A\dfrac{dB}{dt}}{R}

Now, if the number of turn is 22 , then induced emf would be

\epsilon'=NA\dfrac{dB}{dt}

Then the current would be

i'=\dfrac{\epsilon'}{NR}

i'=\dfrac{NA\dfrac{dB}{dt}}{NR}

i'=\dfrac{A\dfrac{dB}{dt}}{R}

i'=i

Hence, The current would be same in both situation.

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A wedge with a mechanical advantage of 0.78 is used to raise a house corner from its foundation. If the output force is 7500 N,
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