A sinusoidal wave of wavelength 1.95m and amplitude of 0.125m travels on a string with a speed of 1.12m/s to the right. The left end of the string (x = 0) is at the origin when t = 0. Calculate
(a) the angular frequency,
(b) the (angular) wavenumber,
(c) the y-location of the string at x = 1.5m when t = 0, and
(d) the maximum speed of any element in the string?