Respuesta :

SlaYeRzzz

Answer:

frequency = speed/ wavelength

speed = wavelength × frequency

speed = 30 × 20

speed = 600mhz

abrehman2040

Answer:

600 m/s

Explanation:

Data :

   Frequency = f = 20 hz

   Wavelenght =  λ = 30 m

Formula for wave speed

        V = fλ = 20 × 30 = 600 m/s