1. The problem statement, all variables and given/known data A metal rod attached to a tube with both closed ends is stimulated to create waves inside the tube. If: L = 1.0 m d = 0.05 m Speed of sound in air = 340 m/s Speed of sound in metal = 1,000 m/s Calculate the value of x using the wavelength of air. 2. Relevant equations Frequency = Velocity / Wavelength 3. The attempt at a solution The frequency of the the metal is the same as the frequency in air, so: 1,000 / (2*1.0) = 340 / wavelength of air Because the wavelength of the metal is 2 * L. 340 / 500 = wavelength of air 0.68 = wavelength of air How do I calculate wavelength with only the distance between two nodes (d)? I need x from wavelength according to the problem's instructions so I have to work backwards but I don't know any formulas for this one.