P18_052 - 52. We use Eq. 18-47 with f = 1200 Hz and v = 329...

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52. We use Eq. 18-47 with f = 1200 Hz and v = 329 m/s. (a) In this case, v D =65 . 8 m/s and v S =29 . 9 m/s, and we choose signs so that f 0 is larger than f : f 0 = f µ 329 + 65 . 8 329 29 . 9 = 1584 Hz . (b) The wavelength is λ = v/f 0 =0 . 208 m. (c) The wave (of frequency f 0 ) “emitted” by the moving reflector (now treated as a “source,” so
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