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3 years ago

Which one of the following accurately pairs the device with its function?

Physics

2 answers:

Juliette [100K]3 years ago

7 0

Answer;

D. Bourdon gage—indicate steam pressure in a furnace

Explanation;

-Steam boiler or furnaces use pressure gage to measure pressure at some places either for water fluid or steam fluid. The pressure gages includes Bourdon pressure gage, bellow pressure gage and the spiral pressure gage.

-The bourdon pressure gage is type pressure gage which has bourdon tube, (an oval cross section of hollow tube). The tube has two ends, open and close. Open end is connected to fluids either water or steam and close end is connected to mechanical linkage in gage pointer. When the pressure builds up, the bourdon tube will be straightened out.

Westkost [7]3 years ago

5 0

<span>D is the correct answer. A Bourdon gage is a popular and commonly used kind of gauge for measuring pressure and vacuum. One use for a Bourdon gage is to indicate steam pressure.</span>

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While bats emit a wide variety of sounds, one type emits pulses of sound at a frequency between 39 kHz and 78 kHz. What is the r

sdas [7]

Answer:

The range of wavelengths of the sound is 7692.30 m and 3846.15 m

Explanation:

A bat emits pulses of sound at a frequency between 39 kHz and 78 kHz. It is required to find the range of wavelengths of this sound.

Bat uses ultrasonic waves. It moves with the speed of light.

If f = 39 kHz,

$\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{39\times 10^3}\\\\\lambda=7692.30\ m$

If f = 78 kHz,

$\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{78\times 10^3}\\\\\lambda=3846.15\ m$

So, the range of wavelengths of the sound is 7692.30 m and 3846.15 m.

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weqwewe [10]

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THIS IS NOT THE EXACT ANSWER BUT IT MIGHT HELP
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