A sinusoidal wave is described by y = (0.25 m) sin (0.30x 40t) where x and y

Question:

A sinusoidal wave is described by y = (0.25 m) sin (0.30x ─ 40t) where x and y are in meters and t is in seconds. Determine for this wave the (a) amplitude, (b) angular frequency, (c) angular wave number, (d) wavelength, (e) wave speed, and (f) direction of motion.