Physics

Problem

A water wave has wavelength

0.25\,\text{m}

and frequency

12\,\text{Hz}

. Its speed is a)

18.8\,\text{m\,s}^{-1}

0.021\,\text{m\,s}^{-1}

3\,\text{m\,s}^{-1}

48\,\text{m\,s}^{-1}