The middle-A organ pipe was designed to sound at exactly 440 Hz when the temperature is 20 C.
(A) What is the speed of sound when the temperature is 20 C?
m/s
(B) How long is the organ pipe if it is open on both ends?
m
(C) When it is an extremely hot 37 C what is the frequency sounded by the same organ pipe (ignore any thermal expansion by the metal organ pipe)?
Hz