-At 0 ing i A wave on a string is described by y (x, t) = (2.0 cm) x cos [2 (x/(2.4 m) + t/(0.30 s))], where x is in m and t is in s. Part D What is the wave length? Express your answer in meters. = Submit Part E [] d= ... Submit S Request Answer At t = 0.75 s, what is the displacement of the string at x = 0.20 m ? Express your answer in centimeters. [5] 5 Request Answer 85% Ezze Q ? P ? m cm [1:1 X Z Part A In what direction is this wave traveling? O the negative x-direction O the positive x-direction Submit Request Answer Part B What is the wave speed? Express your answer in meters per second. V= Submit Part C IVE f= Request Answer What is the wave frequency? Express your answer in hertz. 3 ENE ? ? m/s Hz