Answer:
3100 m/s
Explanation:
The relationship between frequency and wavelength of a wave is given by the wave equation:
[tex]v=f\lambda[/tex]
where
v is the speed of the wave
f is its frequency
[tex]\lambda[/tex] is the wavelength
For the wave in this problem,
f = 15,500 Hz
[tex]\lambda=0.20 m[/tex]
Therefore, the wave speed is
[tex]v=(15500)(0.20)=3100 m/s[/tex]
