You have been asked to assist in the design of a new power generator which harnesses the power of progressive waves traveling into shore. The power generator has to be located in shallow water right at the coastline, and the engineer shave informed you that the machine will only operate at peak capacity when the incoming wave speeds are 6.5m/s. Explain how deep do you dredge to ensure that the waves are coming in from the open ocean will keep the power generator working at peak capacity? Explain which wavelengths will diminish the power generator's efficiency?