One end of a string 5.34 m long is moved up and down with simple harmonic motion at a frequency of 15 Hz . The waves reach the other end of the string in 0.5 s .

Find the wavelength of the waves on the
string. Answer in units of cm

1 answer

frequency*wavelength=speed

In this case, speed is 5.34/.5 m/s
solve for wavelength.