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IL-3 Leo has placed a speaker on flat ground that produces sound with an output power of15.0W. David, listener L1, is 5.00m from the speaker and Lam, listener L2, is 15.0m from the speaker as shown in the figure below. 15.0m 5.00m .L1 L2 speaker a) Draw on a figure like the one above the complete three-dimensional wavefront that arrives at listener IL,. Find the intensity I, pressure amplitude pm, and the loudness B of the sound arriving at listener L1. b) Draw on the figure the complete three-dimensional wavefront that arrives at listener L2. Find the intensity I, pressure amplitude Pm, and the loudness B of the sound arriving at listener L2. Show units with all numbers, but it is not necessary to work out the units here if you did so in part a). R,

IL-3 Leo has placed a speaker on flat ground that produces sound with an output power of15.0W. David, listener L1, is 5.00m from the speaker and Lam, listener L2, is 15.0m from the speaker as shown in the figure below. 15.0m 5.00m .L1 L2 speaker a) Draw on a figure like the one above the complete three-dimensional wavefront that arrives at listener IL,. Find the intensity I, pressure amplitude pm, and the loudness B of the sound arriving at listener L1. b) Draw on the figure the complete three-dimensional wavefront that arrives at listener L2. Find the intensity I, pressure amplitude Pm, and the loudness B of the sound arriving at listener L2. Show units with all numbers, but it is not necessary to work out the units here if you did so in part a). R,

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IL-3 Leo has placed a speaker on flat ground that produces sound with an output power of 15.OW. David, listener L1, is 5.00m from the speaker and Lam, listener L2, is 15.0m from the speaker as shown in the figure below. 15.0m 5.00m L1 L2 speaker a) Draw on a figure like the one above the complete three-dimensional wavefront that arrives at listener L. Find the intensity I, pressure amplitude pm, and the loudness B of the sound arriving at listener L. b) Draw on the figure the complete three-dimensional wavefront that arrives at listener L2. Find the intensity I, pressure amplitude Pm, and the loudness B of the sound arriving at listener L2. Show units with all numbers, but it is not necessary to work out the units here if you did so in part a). R, c) Use numbers from above to find the following ratios: R, Pm2 and Pmt
Transcribed Image Text:IL-3 Leo has placed a speaker on flat ground that produces sound with an output power of 15.OW. David, listener L1, is 5.00m from the speaker and Lam, listener L2, is 15.0m from the speaker as shown in the figure below. 15.0m 5.00m L1 L2 speaker a) Draw on a figure like the one above the complete three-dimensional wavefront that arrives at listener L. Find the intensity I, pressure amplitude pm, and the loudness B of the sound arriving at listener L. b) Draw on the figure the complete three-dimensional wavefront that arrives at listener L2. Find the intensity I, pressure amplitude Pm, and the loudness B of the sound arriving at listener L2. Show units with all numbers, but it is not necessary to work out the units here if you did so in part a). R, c) Use numbers from above to find the following ratios: R, Pm2 and Pmt
IL-1 =0.0746W/m", B=109DB IL-2 a) See problem IP-2 b) 1W/m c) 628W IL-3 a) I=9.55x102W/m, B=110DB, Pm-9.20N/m b)I=1.06x102W/m?, B-100dB, Pm-3.07N/m Pm2 = 0.333, c) 2=3.00, R, IL-4 a) See problem P-1, part c) b) 0.0707W c) 2.11N/m2 d) 97.0dB e) 1.0310 =0.111, and 쓰-0.909 Int Pmt : m0.02 0.08
Transcribed Image Text:IL-1 =0.0746W/m", B=109DB IL-2 a) See problem IP-2 b) 1W/m c) 628W IL-3 a) I=9.55x102W/m, B=110DB, Pm-9.20N/m b)I=1.06x102W/m?, B-100dB, Pm-3.07N/m Pm2 = 0.333, c) 2=3.00, R, IL-4 a) See problem P-1, part c) b) 0.0707W c) 2.11N/m2 d) 97.0dB e) 1.0310 =0.111, and 쓰-0.909 Int Pmt : m0.02 0.08
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