Respuesta :

Answer:

speed = 1200 m/s

Explanation:

given data

frequency = 60 Hz

wavelength = 20 m

solution

we get here speed of a wave that is express as

speed = Frequency × wavelength    ...............................1

put here value and we get speed

speed = 60 × 20

speed = 1200

so speed of a wave is 1200 m/s