What frequency would you need to produce a sound wave in room-temperature air with a wavelength of 9 m?

the answer in Hz

at room temperature=20°c

v=f*wavelength
v=342.2m/s wave length=10m

f=342.2m/s/10m
34.22Hz

To calculate the frequency of a sound wave, we can use the formula:

frequency = speed of sound / wavelength.

The speed of sound in dry air at room temperature is approximately 343 meters per second.

Given that the wavelength is 9 meters, we can substitute these values into the formula:

frequency = 343 m/s / 9 m = 38.1 Hz.

Therefore, you would need a frequency of 38.1 Hz to produce a sound wave with a wavelength of 9 meters in room-temperature air.