Answer:
5 m
Explanation:
Speed of waves is as the product of frequency and wavelength hence expressed as s=fw where f is the frequency of waves in Hz, s is the speed in m/s and w is wavelength in meters.
Making w the subject of the formula then
[tex]w=\frac {s}{f}[/tex]
Substituting 335 m/s for s and 67 Hz for f then the wavelength is
[tex]w=\frac {335}{67}=5m[/tex]
Wavelength is the distance between successive crests. Since the string is 10m, wavelengths of 5m each will be 2 and the crests will be 3.
Wavelenth=5 m