1. The problem statement, all variables and given/known data A closed tube resonates at 440 Hz when it is 0.195 m long and 0.586 m long. Determine the speed of sound. How do I do this? 2. Relevant equations wavelength=4L v=fw 3. The attempt at a solution v= 440 (4L) I'm just not sure how to use both lengths given, can someone help me out?