[SOLVED] mechanical waves 1. The problem statement, all variables and given/known data A sinusoidal transverse wave is traveling along a string in the negative direction of an x-axis. The figure shows a plot of the displacement as a function of position at time t=0; the y-intercept is 4.0m. The string tension is 6.8N, and its linear density is 47.22 g/m. Find the amplitude (cm). Find the wavelength (cm). Find the wave speed (cm/s). Find the period of the wave. Find the maximum transverse speed of a particle in the string. What is the phase angle in degrees? 2. Relevant equations 3. The attempt at a solution So linear density is the mass per unit length. it's not in the units we want (kg/cm), so convert and get 4.722E-4 kg/cm. wave speed = sqrt(T/wave length) = sqrt(6.8/4.722E-4), but this isn't the right answer. did i convert wrong? also i'm having trouble finding the amplitude and wave length, probably for the same reason as above.