0 MasterinqPh,sics Ch15 HW - CoogleChrome ü Serure https://sessan.masteringphysi

Question

0 MasterinqPh,sics Ch15 HW - CoogleChrome ü Serure https://sessan.masteringphysics.com/myctitemView?assignmentproblemlD=81830463 Ch 15 HW Problem 15.28 Rescurces T previous| 11 of 15 next » Part A Problem 15.28 What is the wavelength? A 766-Hz longitudinal wave in air has a speed of 345 m/s Submit My Answers Give Up Part B How much time ls required for the phase to change by 90° at a glven polnt in space? Submit My Answers Give Up Part C At a particular instant, what is the phase ditterence (in degrees) between two points 5.8 cn apart? Express your answer using two significant figures. Type here to search 12:39 PM 9/16 2017

Explanation / Answer

A) wavelength = v/f = 345/766 = 0.450 m

B) time = T/4 = 1/(766*4)

= 0.000326 s

C) phase difference = 5.8/45 *360

= 46.4 degree

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