Answer:
32.5 m/s
Explanation:
The wavelength and the frequency of a wave are related by the so-called wave equation:
[tex]v=f\lambda[/tex]
where
v is the speed of the wave
f is the frequency of the wave
[tex]\lambda[/tex] is the wavelength of the wave
In this problem, we have:
[tex]\lambda=0.5 m[/tex] is the wavelength of the wave
f = 65 Hz is the frequency of the wave
Substituting into the formula, we find the wave speed:
[tex]v=(65)(0.5)=32.5 m/s[/tex]