Tsunamis are fast moving waves frequently generated by underwater earthquakes. In the deep ocean their amplitude is hardly noticeable, however upon reaching shore; they can mount up as high as a six story building. A recent tsunami has been projected by some to encompass a wavelength of 750km and was suspected to travel a distance of 3700km in around 5.3 hours. Find out the wave's i) speed ii) frequency iii) period. As a reference iv) as well compare the speed of wave to that of standard passenger jets, 250 m/s. Supposing that the wave would encompass an amplitude of the six story building with 4m per story, v) write down the equation of the wave (as a cosine wave).