We get: VexpSound = 2f(L2 - L1) For the Actual velocity of sound, we use the equation VactSound = 331.3(1 + T/273.15).5 DATA Air at 0 Celsius. Tuning fork frequency = Hz L1 = m, L2 = m VexpSound = m/s VactSound = m/s Error = (Show work) (Show work) (Show work) Air at 20 Celsius. Tuning fork frequency 1 = Hz L1 = m, L2 = m VexpSound = m/s VactSound = m/s Error = (Show work) (Show work) (Show work) Tuning fork frequency 2 = Hz L1 = m, L2 = m VexpSound = m/s VactSound = m/s Error = (Show work) (Show work) Air at 100 Celsius. Tuning fork frequency = Hz L1 = m, L2 = m VexpSound = m/s VactSound = m/s Error = (Show work) (Show work) (Show work) Helium at 20 Celsius. Tuning fork frequency = Hz L1 = m, L2 = m VexpSound = m/s VactSound = m/s Error = (Show work) (Show work)