Question

the weve length w, in meters per cycle,of a musical note is given by
w=r/f
where r is the speed of sound in meters per second and f is the frequency in cycles per second. The speed of sound in air is 344 m/sec. What is the wavelength of a note whose frequency in air is 45 cycles per second? Round to the nearest tenth of a meter per cycle

Answer 1

to do this, replace r with a number, and replace f with a number
then divide

do you know what r is ?

Answer 2

no this is the first problem i have had like this

Answer 3

from the problem:
r is the speed of sound
The speed of sound in air is 344 m/sec

so what is r?