516_Physics ProblemsTechnical Physics

516_Physics ProblemsTechnical Physics - 518 P17.60 Sound...

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518 Sound Waves P17.60 Use the Doppler formula, and remember that the bat is a moving source. If the velocity of the insect is v x , 40 4 40 0 340 5 00 340 340 5 00 340 .. . . = +− −+ af bg v v x x . Solving, v x = 331 . m s . Therefore, the bat is gaining on its prey at 1.69 m s . P17.61 sin β == v vN SM 1 hv xv h x v N S M = = = 12 8 10 0 128 1 38 6 1 160 . . tan . . cos sin tan . . sin . s s a f v s shock front shock front x h FIG. P17.61 P17.62 (a) FIG. P17.62(a) (b) λ = v f 343 1000 0343 1 ms s m . (c) ′= = F H G I
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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