A pressure wave in air is described by the following equation: P(x,t) = A sin(2(pi)t/T - 2(pi)x/lambda), where A = 2 Pa (recall 1 Pa = 1 N/m2), T = 0.001 s and lambda = 0.33 m.
a. Determine the speed of the pressure wave, showing your work (at least the equations).
b. sketch the pressure versus time at the position x = 0, for at least two full wave cycles. Make axis tick marks where needed, and label the axes appropriately.