94% Sun Apr 10 10 54 04 PM a E Chrome File Edit View History Bookmarks People Wi

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94% Sun Apr 10 10 54 04 PM a E Chrome File Edit View History Bookmarks People Window Help Books I google maps Google C My Internships I Che C Physics question I Ch XA Josh Chapter 16 Waves a www.webassign.net /web/Student/Assignment-Responses/last?dep 13047795 O tech Bookmarks Apple YouTube home Watch Live Sports E lty.p App nyLFG.N Screen Shot PM 2016-04...0.08 PM -1.5 points CJ10 16.P.037. My Notes Ask Your Teacher As the drawing illustrates, a siren can be made by blowing a jet of air through 20 equally spaced holes in a rotating disk The time it takes jet is the period of the sound. The siren is to produce a 2317.0 Hz tone. hat must be the for successive ho es to move past the a angular speed c (in rad/s) of the disk? Screen Shot ad/s PM 2016-04...0.20 PM o your Screen Shot 2 PM 2016-04...0.26 PM ct you a Additional Materials Screen Shot PM 2016-04...0.30 PM Section 16 his Screen Shot 2016-04...0.40 PM 8. C+ -1.5 points CJ10 16.P.053. My Notes Ask Your Teacher At a distance of 3.3 m from a siren the sound intensity is 3.40 x 10 2 w/m2. Assuming that the siren radiates sound uniformly in all directions, find the total power radiated. Screen Shot 2016-03...4.06 PM Additional Materials Section 16.7

Explanation / Answer

Here 2317Hz i.e., 2317holes/second

22 equally spaced holes

2317/20 =115.85 rev/sec

1revlution = 2 rad

115.85x 2x3.14 = 727.54 rad/sec

total power radiation P = intesity x distance

P = 3.42x10-2 x 3.3 = 0.113w

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