Where g is the acceleration of gravity about 98 ms 2 and d is the depth of the water where the wave is happening. The formula for frequency when given wavelength and the velocity of the wave is written as. Sound travels slowest in gases such as air.
Wave speed frequency wavelength.
The speed of a tsunami may be estimated by the following equation speed g d where g 2is the acceleration due to gravity g 981 meterssecond and d is the water. Thus in a time of 1 period the wave will travel 1 wavelength in distance. The formula to calculate the speed of a shallow water wave is. Therefore the wave period is 00005 seconds.