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A 33 kHz sound wave travels in air at v=355 m/s; what is the temperature of...

A 33 kHz sound wave travels in air at v=355 m/s; what is the temperature of the air through which it travels?

b) What is its velocity and wavelength?

c) Two sound waves arrive at an observer; one is -30 dB quieter than the other which is at 1000 mW/m2. What is the intensity of the quieter one in mW/m2?

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