The pressure variation in a sound wave is given by AP = 0.0070 sin( 0.72 7x- 1900 nt). where AP is in pascals, a in meters, and t in seconds. Part A Determine the wavelength, assume the density of the medium to be p = 2.3 - 103 kg/m. Express your answer using two significant figures. 20 AEd ? X = m Submit Request Answer Part B Determine the frequency. AEQ f : Hz Submit Request AnswerPart C Determine the speed. Express your answer using two significant figures. DA AEd ? U = m/s Submit Request Answer Part D Determine the displacement amplitude of the wave. Express your answer using two significant figures. AEd ? A = m Submit Request Answer Provide Feedback Next >