1. Find a particular cosign equation for the sinusoid function graphed in the figure below. Give the amplitude, period and the displacement of the function.
2. A satellite is orbiting the earth such that its displacement D north or south of the equator is given by D = A sin(ωt + α). Using the information given below, re-write the equation for D and sketch one cycle of D as a function of t. Give the starting and ending x-values and max/min y-values on your graph. A= 450 miles ; f = 1.6 x 10-4 H ; α = π/3