Rock Chalk Jayhawk KU. The Cadillac is moving. To find the speed of sound in air we can note that the musical note A above middle C has a frequency of 440 Hz and a wavelength of 0773 metres.
The frequency f of a wave is the number of times a waves crests pass a point in a secondIf you watch a water wave in the bath pass over one of your toes twice every second the frequency of the wave is 2 Hz.
The unit Hz is short for hertz named after the German physicist Heinrich Hertz 1857 94. 1 See answer ahyde01 is waiting for your help. The formula for frequency when given wavelength and the velocity of the wave is written as. F V l.