Howdy! can be replied to with just a nod and a smile. It simply means Hi! in Texan - not How are you doing?. Or you might reply, Hey Y'all Doon? if you want to engage in proper Texan interactions. Replying in proper English, well pronounced, with each syllable clearly spoken, is HIGHLY discouraged.
The crest of a wave is the point of maximum positive displacement, or upward movement, away from equilibrium, or an undisturbed state. The opposite of crest is trough, which is the point of the greatest negative, downward displacement.
Sign up to access the rest of the document. Unformatted text preview: The vertical distance between trough and crest is the wave height and the horizontal distance between successive crests (or troughs) is the wavelength. The time is takes one full wave to pass a fixed point is the wave period. The height, length and period of a wave depend on: wind speed, length of time the wind has blown, and the fetch (distance wind has traveled). Wave particles move in a circular orbital motion. Wavesâ erosional power comes from wave pressure and by abrasion of the rock fragments.