Two sinusoidal sound waves arrive at a receiver. Wave #1 has a pressur the recciver and wave #2 has a pressure amplitude of 3.00x10 N/m arr phase behind wave #1. a) Make a free-hand sketch of the phasors for the two waves to show the sum. Label the phasors as pı, p2, and pnet-

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Chapter1: Units, Trigonometry. And Vectors
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AW-6 Two sinusoidal sound waves arrive at a receiver. Wave #1 has a pressure amplitude 4.50x10*N/m? at
the recciver and wave #2 has a pressure amplitude of 3.00x10 N/m? arriving at the receiver 250° in
phase behind wave #1.
a) Make a free-hand sketch of the phasors for the two waves to show the individual phasors and their
sum. Label the phasors as pı, P2, and pnet-
b) Use the diagram to calculate the anmplitude of the net wave in N/m2.
Transcribed Image Text:AW-6 Two sinusoidal sound waves arrive at a receiver. Wave #1 has a pressure amplitude 4.50x10*N/m? at the recciver and wave #2 has a pressure amplitude of 3.00x10 N/m? arriving at the receiver 250° in phase behind wave #1. a) Make a free-hand sketch of the phasors for the two waves to show the individual phasors and their sum. Label the phasors as pı, P2, and pnet- b) Use the diagram to calculate the anmplitude of the net wave in N/m2.
Answers
AW-1 a) 3.46cm b) 3.46cm c) 4.36cm (this is not a typo). Only the graphical method can be used
for this part because the anmplitudes of the two wayes are not the sarne,
AW-2 83°
AW-3 a) and b): 1. Pnet=2Pm 2. Pue=1.41pm 3. Pnet=1.73pm and 4. pnet-1.85pm
AW-4 pnet-1.17p.
AW-5 a) 70.0m/s
c) 4.74cm d) 42.0°
AW-6 paet-4.47x10 N/m2
b) yı lies along the +x axis, y2 is 115° counterclockwise from the tip of y1.
Transcribed Image Text:Answers AW-1 a) 3.46cm b) 3.46cm c) 4.36cm (this is not a typo). Only the graphical method can be used for this part because the anmplitudes of the two wayes are not the sarne, AW-2 83° AW-3 a) and b): 1. Pnet=2Pm 2. Pue=1.41pm 3. Pnet=1.73pm and 4. pnet-1.85pm AW-4 pnet-1.17p. AW-5 a) 70.0m/s c) 4.74cm d) 42.0° AW-6 paet-4.47x10 N/m2 b) yı lies along the +x axis, y2 is 115° counterclockwise from the tip of y1.
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