the sea level drops leaving the seabed exposed (normally 30 feet below sea level), then it rises a equal distance above sea level. waves have a max height of 38.9 meters. the cycle of rise and fall took between 26-35 minutes. assuming the waves follow a sine curve, (height Y varies with wave varying sinusoidally with time T) -use f(t)=A sin(b(t))+k. to find a equation -what does A and K stand for? -how long was the seabed exposed a 26 minutes?