1. The problem statement, all variables and given/known data A guitar string is set in vibrations at a frequency of 437 Hz. How many vibrations did the guitar's string make while the sound propagated 235 m in the air? 2. Relevant equations V = wavelegth x freq. 3. The attempt at a solution I figured out that you do 437 Hz x 235 m = 102695 m/s. 102695 / 343 = 299.4 vibrations. Can anyone explain how this works? I thought vibration was the frequency. I don't understand how the vibration represents how many times faster than the speed of sound it is.