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Tresset [83]
3 years ago
9

A ball hangs on a string. The force of tension (Ft) in the string is 15n. The force due to gravity (Fg) pulls the ball down with

a force of 15 N. Show your work.
Physics
1 answer:
Tanya [424]3 years ago
7 0

Answer: 0N

Explanation: 15N-15N =0N

they are a balanced force,meaning they canceled each other out.

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Hi

before I answer a question I think very deeply and try my best, hope it helps...

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8 0
2 years ago
How do noise canceling headphones work?
postnew [5]

Answer:

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Explanation:

As we know that the interference of sound waves is of two types

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now we know that constructive interference means the resultant intensity will be more than the intensity of interfering waves as here two waves are in same phase.

In destructive interference the resultant of two waves is given by the minimum resultant of the intensity as here the phase of two waves are opposite to each other.

So we will say that

I = \sqrt{(I_1 + I_2 + 2\sqrt{I_1I_2}cos\theta)}

here in case of noise cancelling headphones we know that the phase of noise is always made in opposite phase with the sound which is used to cancelled the noise.

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5 0
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Extra Info : -

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2 years ago
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Answer:

D. Upward force on the shuttle

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