To find the wavelength of a sound wave, we can use the formula:
wavelength = speed of sound / frequency
Given that the frequency of the note played by the drummer is 85 Hz and the speed of sound in air is 340 m/s, we can substitute these values into the formula:
wavelength = 340 m/s / 85 Hz
Dividing 340 m/s by 85 Hz gives us:
wavelength = 4 m
Therefore, the wavelength of the sound wave produced by the drummer is 4 meters.