1. The problem statement, all variables and given/known data A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 40.0 vibrations in 30.0s. Also, a given maximum travels 425cm along the rope in 10.0s. What is the wavelenght? 2. Relevant equations v=f(lambda) 3. The attempt at a solution My problem is understanding what 40.0 vibrations in 30.0s means. Is this a reference to the frequency? 40/30=1.3Hz?