Question

what is the phase ϕ(x,t) of the wave?

One formula for a wave with a y displacement (e.g., of a string) traveling in the x-direction is

.

All the questions in this problem refer to this formula and to the wave it describes.

a) Which are independent variables?

b) Which are parameters that determine the characteristics of the wave?

c) What is the phase  of the wave?

d) What is the wavelength  of the wave?

e) What is the period of this wave?

f) What is the speed of propagation  of this wave?