A stretched string has a mass per unit length of 4.86 g/cm and a tension of 25.3 N. A sinusoidal wave on this string has an amplitude of 0.111 mm and a frequency of 58.7 Hz and is traveling in the negative direction of an x axis. If the wave equation is of the form y(x,t) = ym sin(kx + wt), what are (a) ym, (b) k, and (c) w, and (d) the correct choice of sign in front of w? (a) Number i Units (b) Number Units v (c) Number i Units V