Question

If a wave has amplitude of 2 meters, a wavelength of 2 meters, and a frequency of 10 Hz, and a period of 1 second, then at what speed is the wave moving?

Answer 1

20 m/s

Step-by-step explanation:

The speed of a wave is given by:

`v=\lambda f`

where

`\lambda` is the wavelength

f is the frequency

v is the speed

For the wave in this problem,

f = 10 Hz is the frequency

`\lambda=2 m` is the wavelength

So the speed is

`v=(10 Hz)(2 m)=20 m/s`