Answer:
A. 230 m/s
Explanation:
The speed of a wave is given by:
[tex]v=f \lambda[/tex]
where
f is the frequency
[tex]\lambda[/tex] is the wavelength
For the wave in the problem,
f = 450 Hz (frequency)
[tex]\lambda=0.52 m[/tex] (wavelength)
Substituting into the equation, we find the speed:
[tex]v=(450)(0.52)=234 m/s \sim 230 m/s[/tex]