7-3 Two sound waves arriving at the same point Q in space are described at that point by the equations: P, Pm COS wt and p2 pm Ccos(@t-0). a) Use phasors to find graphically the amplitude of the sum of the two waves for: Trad 3. 0 =. 3 b) Use the equation for the net wave Trad 1. 0 = 0, 2. O =. 2 Trad and 4. 0 = 4 Pnet = 2p,, cos- -cos(@t-) to find the amplitude of the sum of the two waves at point Q. 2 Trad Trad Trad analytically for 1. O = 0, 2. =. 3. 0 = 2 and 4. D = 4 14 Two siusoidal sound woye
7-3 Two sound waves arriving at the same point Q in space are described at that point by the equations: P, Pm COS wt and p2 pm Ccos(@t-0). a) Use phasors to find graphically the amplitude of the sum of the two waves for: Trad 3. 0 =. 3 b) Use the equation for the net wave Trad 1. 0 = 0, 2. O =. 2 Trad and 4. 0 = 4 Pnet = 2p,, cos- -cos(@t-) to find the amplitude of the sum of the two waves at point Q. 2 Trad Trad Trad analytically for 1. O = 0, 2. =. 3. 0 = 2 and 4. D = 4 14 Two siusoidal sound woye
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![AW-3 Two sound waves arriving at the same point Q in space are described at that point by the equations:
Pi = Pm COS wt and p, =pm cos(@t-0).
a) Use phasors to find graphically the amplitude of the sum of the two waves for:
Trad
1. 0 = 0, 2. Q =.
Trad
and 4. 0 =
4
rad
3. Q =
3
b) Use the equation for the net wave
Pnet = 2p, cos cos(@t-) to find the amplitude of the sum of the two waves at point Q.
analytically for 1. = 0, 2. =
2
Trad
Trad
3. =
Trad
and 4. Q =
3
A W-4 Tuo sinusoidal sound rOues](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe45870c4-20f4-4368-9c86-5593e66a55a8%2Fa1cfe340-26e7-4ea6-b9cf-ea59f03c3382%2Fhml55we_processed.jpeg&w=3840&q=75)
Transcribed Image Text:AW-3 Two sound waves arriving at the same point Q in space are described at that point by the equations:
Pi = Pm COS wt and p, =pm cos(@t-0).
a) Use phasors to find graphically the amplitude of the sum of the two waves for:
Trad
1. 0 = 0, 2. Q =.
Trad
and 4. 0 =
4
rad
3. Q =
3
b) Use the equation for the net wave
Pnet = 2p, cos cos(@t-) to find the amplitude of the sum of the two waves at point Q.
analytically for 1. = 0, 2. =
2
Trad
Trad
3. =
Trad
and 4. Q =
3
A W-4 Tuo sinusoidal sound rOues
![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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe45870c4-20f4-4368-9c86-5593e66a55a8%2Fa1cfe340-26e7-4ea6-b9cf-ea59f03c3382%2Fcnbqhpd_processed.jpeg&w=3840&q=75)
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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