Assignment:
A plane progressive harmonic wave is represented by the equation ψ 0.15 sin(0.06x + 90t) where ψ is the displacement in meters, t is the time in seconds and x is distance from a fixed origin in meters.
Determine the following wave properties, and where appropriate give units:
a) The amplitude
b) The direction of wave travel
c) The wavelength
d) The speed of the wave
e) The wave frequency
f) The maximum speed of wave oscillations at a particular point
g) The equation of a wave of twice the amplitude and twice the frequency travelling at the same speed but in the opposite direction.