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skad [1K]
2 years ago
9

A friend wants to know whether her wedding ring is made of pure

Physics
1 answer:
masha68 [24]2 years ago
8 0

Answer:

mixture of gold and silver

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6 0
3 years ago
To practice Problem-Solving Strategy 16.1 Standing waves. An air-filled pipe is found to have successive harmonics at 800 HzHz ,
bazaltina [42]

Answer:

Length of the pipe = 53.125 cm

Explanation:

given data

harmonic frequency f1  = 800 Hz

harmonic frequency f2  = 1120 Hz

harmonic frequency f3  = 1440 Hz

solution

first we get here fundamental frequency that  is express as

2F = f2 - f1    ...............1

put here value

2F = 1120 - 800

F = 160 Hz

and

Wavelength is express as

Wavelength  = Speed ÷ Fundamental frequency    ................2

here speed of waves in air  = 340 m/s

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Wavelength   = 2.125 m

so

Length of the pipe will be

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Length of the pipe = 53.125 cm

7 0
3 years ago
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