Question

A water wave has a speed of 23.0 meters/second. If the wave’s frequency is 0.0680 hertz, what is the wavelength?

Answer 1

Task. A water wave has a speed of $v=23.0$ meters/second. If the wave’s frequency is $\nu=0.0680$ hertz, what is the wavelength?

Solution. The wavelength $\lambda$ is related with the velocity $v$ and the frequency $\nu$ of the wave via the following formula:

$\lambda=v\nu.$

Substituting values we get

$\lambda=23*0.068=1.564\ m.$

Answer. $\lambda=1.564\ m.$