Part A Calculate the maximum displacement of air molecules when a 330 Hz sound wave passes whose intensity is at the threshold of pain ( 120 dB ). Express your answer to two significant figures and include the appropriate units. Previous Answers Incorrect; Try Again; 4 attempts remaining Review your calculations and make sure you round to 2 significant figures in the last step. Part B What is the pressure amplitude in this wave? Express your answer to two significant figures and include the appropriate units.