The speed of a deep water wave with a wavelength ë is given approximately by v = (gë/2ð)1/2. Find the speed and frequency of a deep water wave with a wavelength of 5.5 m.

Question

The speed of a deep water wave with a wavelength ë is given approximately by v = (gë/2ð)1/2. Find the speed and frequency of a deep water wave with a wavelength of 5.5 m. 
? m/s 
? Hz

can someone get me started with a formula?  I lost my book :(

bobpursley · Answer

The wave equation. freq*wavelength=speed