Question

2)If the positions of resonance in the tube were found at: 15.00 cm, 20.2 cm, 26.2...

2)If the positions of resonance in the tube were found at: 15.00 cm, 20.2 cm, 26.2 cm, 32.4 cm, 38.2 cm, 43.7 cm, and 49.2 cm. Explain how these numbers are related to the wavelength. Calculate the wavelength. Calculate the wavelength of the wave.

3)Calculate the next position of the resonance on the tube in cm.

4)The sound propagation velocity in air is only dependent of the temperature of the air. If the room temperature is 68.9F, calculate the sound wave velocity using:

5)Using the information at 2) and 3), calculate the wave frequency in Hz.

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Homework Answers

Answer #1

Let

etc...

These numbers are related to the wavelength as :

So,

Wavelength :

3.

New position :

4.

68.9F = 293.4 K

Velocity of sound :

5.

Frequency,

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