Question

An ocean wave has a wavelegth of 2 meters and a period of 5 seconds. What is the speed of the wave

Answer 1

0.4 m/s

Step-by-step explanation:

First of all, let's find the frequency of the wave, which is equal to the reciprocal of its period:

`f=(1)/(T)=(1)/(5 s)=0.2 Hz`

Now we can find the wave speed using the formula:

`v=f\lambda`

where

f = 0.2 Hz is the frequency

`\lambda=2 m` is the wavelength

Substituting, we find

`v=(0.2 Hz)(2 m)=0.4 m/s`