A travling wave with recording an angular frequency of 216 rad/s and a wavelength of 0.61 m. Calculate, the speed 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