The transverse displacement of an harmonic wave on a stretched rope is y = 0.03 cos(3.2 x - 6.4 t), where x and y are in meters and t is in seconds.
1) What is the amplitude of this wave?
A =

2) What is the wavelength of this wave?
l =

3) What is the speed with which this wave travels?
|v| =

4) In what direction is this wave propagating?
+x
-x
+y
-y
+z
-z
none of the above

5) What is the frequency (NOT the angular frequency) of this wave?
f =