Answer:
The speed of the wave is 128.94 m/s
Explanation:
Use the relationship between wavelength (lambda) and frequency (f) that are in a mutually reciprocal relationship via the speed of propagation:
[tex]\lambda = vT\implies v = \frac{\lambda}{T}\\v = \frac{79.3m}{0.615s}=128.94\frac{m}{s}[/tex]
The speed of the wave is 128.94 m/s
