A transverse wave on a rope is given by y(x, t) = (0.750 cm) cos( T[(0.400 cm-1)a + (250 s-1)t]). Part A Find the amplitude. Express your answer in centimeters. ] ? A = cm Part B Find the period. Express your answer in seconds. T = S Part C Find the frequency. Express your answer in hertzes. ] ? f = Hz Part D Find the wavelength. Express your answer in centimeters. ? = cm Part E Find the speed of propagation. Express your answer in meters per second. ] v = m/s Part F Is the wave traveling in the +x- or -x-direction? O +x-direction O -x-direction