12_InstSolManual_PDF_Part21 - 5 v 2 L 5 1 2 L Å TL m 5 1 2...

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Solve: The wall receives the sound: and gives The wall receives the sound: and 12.74. Set Up: where T is the tension in the string and m is its mass. Solve: (a) (b) (c) For and gives (d) For and and 12.75. Set Up: The whale acts as the listener and then as the source. The direction from the listener to the source is positive. Solve: (a) (b) whale receives the sound: f L1 5 1 v 1 v L v 1 v S 2 f S 5 1 v 1 v whale v 2 f S f L1 5 f L . v L 5 1 v whale . v S 5 0, l 5 v f 5 1482 m / s 22.0 3 10 3 Hz 5 0.0674 m f S 5 22.0 3 10 3 Hz. f 1 5 v 2 L 5 326 m / s 2 1 0.330 m 2 5 494 Hz. L 5 0.330 m v 5 " T / m 5 326 m / s. T 5 769 N m 5 2.53 3 10 2 3 kg 0.350 m 5 7.23 3 10 2 3 kg / m. S 2 , x 5 35.0 cm 2 33.0 cm 5 2.00 cm. L 5 v 2 f 1 5 183 m / s 2 1 277 Hz 2 5 33.0 cm. f 1 5 v 2 L v 5 " T / m 5 183 m / s. T 5 769 N m 5 8.00 3 10 2 3 kg 0.350 m 5 0.0229 kg / m. S 1 , m 5 T L 1 2 f 1 2 2 5 769 N 1 0.350 m 21 4 21 466 Hz 2 2 5 2.53 g T 5 1 2 f 1 2 2 Lm 5 4 1 262 Hz 2 2 1 0.350 m 21 8.00 3 10 2 3 kg 2 5 769 N f 1 5 v
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Unformatted text preview: 5 v 2 L 5 1 2 L Å TL m 5 1 2 Å T Lm v 5 Å T m 5 Å TL m , f 1 5 v 4 L . v bat 5 v D f 2 f S1 1 D f 5 1 344 m / s 21 10.0 Hz 2 2 1 2000 Hz 2 1 10.0 Hz 5 0.858 m / s. f L2 2 f S1 5 D f 5 1 v 1 v bat v 2 v bat 2 1 2 f S1 5 1 2 v bat v 2 v bat 2 f S1 . f L2 5 1 v 1 v bat v 2 f S2 5 1 v 1 v bat v 21 v v 2 v bat 2 f S1 5 1 v 1 v bat v 2 v bat 2 f S1 . v L 5 1 v bat . v S 5 f S2 5 f L1 . f L1 5 1 v v 2 v bat 2 f S1 . f L 5 1 v 1 v L v 1 v S 2 f S v L 5 0. v S 5 2 v bat f L 5 f L1 . f S 5 f S1 . Mechanical Waves and Sound 12-21...
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