(a) For constant phase, x must increase as t increases, so the wave travels in the positive x direction. Comparing the specific form to the general form, we have 6nit - 4nx + _ = kx - wt + . The speed and direction of the wave are both specified by the vector wave velocity. Im = 1 = A 6 It rad/s 4 It rad/m = 1.5 1.5 i m/s Part 4 of 6 - Analyze (b) Substituting t = 0, x = 0.117 m, we have (0.325 m) sin - y The correct answer is not zero. + 1 X = Your response differs from the correct answer by more than 10%. Double check your calculations.I ) (0.325 m) sin - 1 1x = Your response differs from the correct answer by more than 10%. Double check your calculations. It) (0.325 m) 1 = The response you submitted has the wrong sign. ) = 0.325 X The response you submitted has the wrong sign. m = 32.5 X The response you submitted has the wrong sign. cm. Note that when we take the sine of a quantity with no units, the quantity is not in degrees, it is in radians. So we must make sure that the calculator is properly set for entering values in radians.Part 4 of 6 - Analyze (b) Substituting t = 0, x = 0.117 m, we have (0.325 m) sin - 0.468 V 1 + 4 x = Did you accidentally divide or take the inverse in your calculation?n (0.325 m) sin (- 1.8 x = Your response differs from the correct answer by more than 100%.It (0.325 m ) 0.6326 X The response you submitted has the wrong sign. ) = 0.2055 X The response you submitted has the wrong sign. m = 20.55 x The response you submitted has the wrong sign. cm. Note that when we take the sine of a quantity with no units, the quantity is not in degrees, it is in radians. So we must make sure that the calculator is properly set for entering values in radians.first step y (x, t) = 10. 325 sin (- 0. 468 * + 45) second step y (x, t) = 0.325 sin ( - 39. 24) Third step 4 = 0. 325 x ( - 0 . 6326 ) O fourth =- 0. 2055(m step fifth step 4 =-20 . 55 Cm P