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4 A point sound source emits a sinusoidal wave at a frequency of 2,000 Hz. The...
An electronic point source emits sound isotropically at a frequency of 2 × 103 Hz and...
An electronic point source emits sound isotropically at a frequency of 2 × 103 Hz and a power of 27 watts. A small microphone has an area of 0.77 cm2 and is located 175 meters from the point source. a: How many minutes will it take for the microphone to recieve 0.2 Joules from this sound? b: What is the sound intensity level at the microphone from this point source? c: What would be the sound intensity level at the...
A point source of sound generates a 200 Hz tone. The wave has an intensity of...
A point source of sound generates a 200 Hz tone. The wave has an intensity of 2.2×10−8 W/m2 at a distance of 3 m from the source. Find the total sound power at the source. At what distance from the source is the decibel level below 15 dB? What is the intensity of the sound at this distance?
1. A source moving with a speed 37 m/s, emits a sound wave with a frequency...
1. A source moving with a speed 37 m/s, emits a sound wave with a frequency f = 377 Hz. Determine the frequency detected by a stationary observer if the speed of sound is v = 343 m/s and the source is moving towards the observer. 2.A stationary source, emits a sound wave with a frequency f = 428 Hz. Determine the frequency detected by an observer moving towards the source with a speed v = 43 m/s, if the...
Chapter 17, Problem 030 The source of a sound wave has a power of 3.71 ㎶. 1fit is a point source...
Chapter 17, Problem 030 The source of a sound wave has a power of 3.71 ㎶. 1fit is a point source, (a) what is the intensity and (b) the sound level at a 1.37 m distance (a) Number (b) Number Units Units
Chapter 17, Problem 030 The source of a sound wave has a power of 3.71 ㎶. 1fit is a point source, (a) what is the intensity and (b) the sound level at a 1.37 m distance (a) Number...
Question 8 Consider a source emitting sound at frequency f. The speed of sound wave in...
Question 8 Consider a source emitting sound at frequency f. The speed of sound wave in the medium is v. (a) Show that the Doppler frequency is for a stationary observer as the source approaches at speed v 12 marks (b) Show that the Doppler frequency is f for a stationary observer as the source recedes at speed v, [2 marks (c) Show that the Doppler frequency is vv as the observer and the source are travelling towards each other...
The plane sound wave is generated by the source which frequency is v = 400 Hz....
The plane sound wave is generated by the source which frequency
is v = 400 Hz. The amplitude is 8 mm.
Find the displacement and velocity of a point at the distance 3
m from a source when t = 0.5s.
Velocity of sound wave is 300m/s,
ξ(0,0)-0.
1. If a sound of frequency 1000 Hz has intensity level 30 dB, what would be...
1. If a sound of frequency 1000 Hz has intensity level 30 dB,
what would be the intensity level of sound frequency 50 Hz which
appears to have equal loudness? (Answer= 60 dB)
2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9
W/m^2)
*3. What is intensity (in W/m^2) of the equal loudness 50 Hz
sound? (Answer is NOT 50.12 x 10^-12)
*4. What is the ratio of the pressure variation (in amplitude)
of the equal loudness...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
4. Your ears detect a sound wave with a frequency of 315 Hz and a sound...
4. Your ears detect a sound wave with a frequency of 315 Hz and a sound intensity level of 80 dB. It originated in a vibrating string with a length of 1.9 meters. A) Waves can be longitudinal or transverse. What is the difference between these two kinds of waves? B) This question has one longitudinal wave and one transverse wave. Identify them. C) Recall that the sound you hear from a string is the fundamental frequency, which has a...
The source of a sound wave has a power of 3.88 ?W. If it is a...
The source of a sound wave has a power of 3.88 ?W. If it is a point source, (a) what is the intensity and (b) the sound level at a 5.61 m distance?
Chapter 17, Problem 030 The source of a sound wave has a power of 3.71 ㎶. 1fit is a point source, (a) what is the intensity and (b) the sound level at a 1.37 m distance (a) Number (b) Number Units Units
Chapter 17, Problem 030 The source of a sound wave has a power of 3.71 ㎶. 1fit is a point source, (a) what is the intensity and (b) the sound level at a 1.37 m distance (a) Number...
Question 8 Consider a source emitting sound at frequency f. The speed of sound wave in the medium is v. (a) Show that the Doppler frequency is for a stationary observer as the source approaches at speed v 12 marks (b) Show that the Doppler frequency is f for a stationary observer as the source recedes at speed v, [2 marks (c) Show that the Doppler frequency is vv as the observer and the source are travelling towards each other...
The plane sound wave is generated by the source which frequency
is v = 400 Hz. The amplitude is 8 mm.
Find the displacement and velocity of a point at the distance 3
m from a source when t = 0.5s.
Velocity of sound wave is 300m/s,
ξ(0,0)-0.
1. If a sound of frequency 1000 Hz has intensity level 30 dB,
what would be the intensity level of sound frequency 50 Hz which
appears to have equal loudness? (Answer= 60 dB)
2. Intensity of 30 dB, 1000 Hz sound= (Answer= 1.000 x 10-9
W/m^2)
*3. What is intensity (in W/m^2) of the equal loudness 50 Hz
sound? (Answer is NOT 50.12 x 10^-12)
*4. What is the ratio of the pressure variation (in amplitude)
of the equal loudness...
An outside loudspeaker (considered a small source) emits sound waves with a power output of 111 w (a) Find the intensity 10.7 m from the source W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB? Need Help? Read 11. -/2 points SerCP10 14 P023 My No A commuter train passes a passenger platform at a constant speed of 42.1 m/s. The...
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