The following data give the displacement of points along a rope at an instant during the passage of a transverse wave:
a. Position x (cm): 0 1 2 3 4
b. Displacement y (cm): 0 3 0 -3 0
c. (a) What is the amplitude of the wave?
d. (b) What is the wavelength of the wave?
e. (c) If the wave travels at 12m/s, find its frequency.