Two waves travelling in the same direction are given by: y1 = 0.2 sin(1.5ttx-20t+cp) and y2 = 0.2 sin(1.5ttx-20t), where x and y are in meters and t is in seconds. If the %3D two waves start at the same moment, then the path difference, Ax, corresponding to a fully destructive interference is:

A travling wave with a wavelegnth of wavelength is 0.32 (m), detailed as                                    y(x, t) =  28.13  sin( kx + 524.99 t+46.38o)               Find the angular velocity , w?                   Notes:                         - Use 2 decimal and round the 3rd decimal. Example : 13.225 , your answer would be 13.23                          - Do not add Unit in your answer                          - Don't do spaceing                          - Add the negative "-" sign only when it is in your answer

17. Find the amplitude and frequency of the following waves: a. 20 sin 3771 b. 12 sin 2 120r c. 106 sin 10,000r d. -8 sin 10,058:

A travling wave with a wavelegnth of wavelength is 0.96 (m), detailed as                                    y(x, t) =  77.98  sin( kx + 28.45 t+23.46o)               Find the peed of the wave, v ?               Notes:                         - Use 2 decimal and round the 3rd decimal. Example : 13.225 , your answer would be 13.23                          - Do not add Unit in your answer                          - Don't do spaceing                          - Add the negative "-" sign only when it is in your answer