what is the equation for amplitude of a wave
Part (a): The wave's amplitude, wavelength, and frequency can be determined from the equation of the wave: y(x,t) = (0.9 cm) sin[(1.2 m -1)x - (5.0 s -1)t]. The amplitude is whatever is multiplying the sine.A = 0.9 cm. The wavenumber k is whatever is multiplying the x:et's say that for a particular wave on a string the equation is: y(x,t) = (0.9 cm) sin[(1.2 m -1)x - (5.0 s -1)t]. (a) Determine the wave's amplitude, wavelength, and frequency. (b) Determine the speed of the wave. (c) If the string has a mass/unit length of m = 0.012 kg/m, determine the tension in the string.