Answer to Question #21845 in Acoustics for Jen

Question

A sound wave travelling in glycerine, with a density 1260kg/m^3 is represented by the following plane wave equation:

S(x,t) = (0.5mm)sin[(1.1rad/m)x-(2200rad/sec)t]

(a)Is the sound wave moving left or right with respect to the horizontal?
(b)What is the displacement amplitude?
(c)What is the frequency?
(d)What is the period?
(e)What is the wavelength?
(f)What is the phase speed of the sound wave?
(g)What is the maximum medium particle velocity?
(h)What is the maximum acoustic pressure?
(i)What is the specific acoustic impedance for the plane wave in the glycerine?
(j)What is the average intensity?

Please help. I think I'm able to solve some of these questions but I need help please