Hi, I need your help with this Physics exercise, I hope you can help me
A pulse moving to the right along the x axis is represented by the function of
wave:

y (x, t) = 2 / (x-3t) ^ 2 + 1

Where x and are measured in centimeters and t in seconds.
a) Find the velocity, pulse amplitude, and expressions for the wave function at t = 0s, t = 1.0s
and t = 2.0 seconds.
b) What would happen if the wave function were:
y (x, t) = 2 / (x + 3t) ^ 2 + 1
How would this change the situation?