A string with linear density 2.0 g/m is stretched along the positive x-axis with a tension of 20 N. One end of the string, at x = 0 m, is tied to a hook that oscillates up and down at a frequency of 100 Hz with a maximum displacement of 1.0 mm. At t = 0 s, the hook is at its lowest point.

What is the wave speed on the string?
What is the wavelength?
What is the amplitude of the wave?
What is the phase constant of the wave?
Find the equation for the displacement of the traveling wave.
What is the string's displacement at x=3.5 m and t=70 ms ?