1. The problem statement, all variables and given/known data Twelve identical mass-spring combos are lined up and set to oscillation. Two pictures of the same system taken at different times are shown. The crest-to-crest distance is 8.0 cm, and the maximum displacement of all the masses is 1.5 cm. 1) Explain how you can tell that a traveling wave is present. 2) Which direction is the wave traveling? Be sure to justify your response with a reasoned explanation. 3) Make an estimate of the period of oscillation of each mass. 4) What is the frequency of the traveling wave? 5) What are the amplitude and the wavelength of the traveling wave? 6) What is the wave speed? 2. Relevant equations wave velocity = lambda * frequency 3. The attempt at a solution 1) The synchronized motion of the springs up and down causes a transverse wave to propagate with some period, amplitude and frequency? 2) To the right by looking at the two consecutive images? 3) The amplitude of the motion is given but not the k or m so we cant use the usual formula for the period. We must use information about the wave to figure out the period of each spring. 4) We know the wavelength (8 cm) but dont know the speed of the wave, so not sure how to find the frequency. 5) The amplitude is probably 1.5 cm? (the max displacement of a mass)? The wavelength is 8cm? 6) The wave speed will be wavelength * frequency so if I could solve the previous questions this one would be easy to answer.