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lys-0071 [83]
3 years ago
9

A speaker vibrates at a frequency of 200 hz. What is it's period ?

Physics
1 answer:
Katen [24]3 years ago
8 0
200 Hz = 200 cycles per sec 

<span>1 cycle, the period = 1/200 = 0.005 seconds, or 5 milli seconds.</span>
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To solve this problem we must rely on the equations of the simple harmonic movement that define the period as a function of length and gravity as

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Where

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A box-shaped metal can has dimensions 5 in. by 19 in. by 4 in. high. All of the air inside the can is removed with a vacuum pump
GuDViN [60]

Answer:

The force is  F  =  1397 lb

Explanation:

From the question we are told that

    The length of the box is  l  =  19 \ in

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     The height is  h  =  4\ in

The pressure experience on one of the sides is mathematically represented as

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Where A is the area of the box which is mathematically evaluated as

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substituting values

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This pressure is equivalent to the atmospheric pressure which has a constant value of  p = 14.7 pi

This implies that

        14.7  = \frac{F}{95}

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I believe it is
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x~4.4
4.4*1.6
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3 years ago
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