Consider a sound wave in air that has displacement amplitude 0.0200 mm. Calculate the pressure amplitude for frequencies of 150 Hz. In each case compare the result to the rain threshold, which is 30 Pa
Q: How to convert 111 dBSIL to mW/m2
A: Given, Sound level = 111 dBSIL To convert dBSIL to W/m2 we use this conversion as 1 dB = 1 × 10-12…
Q: An isotropically radiating point source of sound has a power output of 903 W. What is the sound…
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Q: The decibel is defined as ten times the logarithm of power gain, expressed as power out over power…
A: Solution:-Given thatdB=10 logPoutPinwhere dB=dBSIL; when Pin=10-12 W/m2dBSIL=1131 W=1000 mW
Q: he intensity level produced by a jet airplane at a certain location is 170 dB. (a) Calculate the…
A: Solution: a) We know that, Intensity level I (dB)=10 log II0 Where, I0=10-12 W/m2 I(dB)=170 dB…
Q: The sound level (intensity / pressure level) produced by the device at a distance of one meter from…
A: Given that: f1=94 dB at r1=1 mf2=? at r2=19 m
Q: A loudspeaker is placed near the open end of a pipe length 417 mm closed at its other end. The…
A: Length of pipe (L) = 417 mm = 0.417 m Lowest resonant frequency = 228 Hz
Q: A plane harmonic sound wave of amplitude 15 mPa propagates in air (ρ= 1.2 kg/m3) at 21 °C, with a…
A: The pressure amplitude of the wave given as, Δp=15 mPa (or) Δp=15×10-3 Pa. The density of the air is…
Q: The intensity at a certain location is 1.021 W/m2. What is the sound intensity level at this…
A: Intensity of sound at a certain location (I) = 1.021 Wm2
Q: How to convert 280.6 mPa to dBSPL?
A: Given, Pressure P = 280.6 mPa = 280.6 × 10-3 Pa To convert Pa to dBSPL we use 1 Pa = 94 dBSPL
Q: A standard trumpet has a resonant tube length of 1.4 m and is closed at one end. What are the first…
A: A standard trumpet has a resonant tube of length is l=1.4 mThe tube is closed at one end.In this…
Q: How far must one stand from a 4 mW point sound source if the intensity at that location is at the…
A: Given, Power = 4mW
Q: The speaker diaphragm with a diameter of 30 cm oscillates with an amplitude of shift 0.020 mm.…
A: Assumptions : Frequency of the electrical signal= 1kHz Angular frequency of the signal = ω=2πx103…
Q: 12. Three point charges lie along a straight line as shown in the figure below, where q1 = 6.00 x…
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Q: A Jackhammer from 1 meter away produces roughly 100dB of sound. What is the sound pressure caused…
A: Write the expression for loudness
Q: The power of the sound produced by the sound source is 10 mW. The observer is at a distance of 2.5 m…
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Q: The sound from a trumpet radiates uniformly in alldirections in 20°C air. At a distance of 5.00 m…
A: Given: Distance=5 m Sound intensity level=52.0 dB Frequency=587 Hz Temperature=20°C
Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…
A: Given Data: The initial intensity of a sound is, Ii=2×10-5 W/m2 The amplitude increases the…
Q: Calculate the frequency of the first overtone of a 2 m pipe closed at one end. Take the speed of…
A: Given: The speed of the sound is 340 m/s. The length of the one-end closed pipe is 2 m.
Q: Calculate the time taken by a sound wave of frequency 800 Hz and wavelength 44 cm to travel a…
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Q: If the speed of sound in air is 340 metres per second, calculate (i) the waveleneth when the…
A: v=λt = λf 340 = 256 xλ λ = 1.328 m
Q: afacturer: (1) an improved muffler that each frequency band, (2) a reduction in reduce the sound…
A: Given as,
Q: A sound wave in air has a pressure amplitude of 4.00 Pa and a frequency of 5.00 kHz. Take P 0 at…
A: Given: Pressure amplitude for a sound wave is pmax=4 Pa when x=0. Frequency of the sound wave is…
Q: at a distance of 4 m from a fan exerting 50W of mechanical energy, estimate the sound level if the…
A: distance (d) = 4 m Power of fan (P) = 50 W Io = 10-12 Wm2
Q: The sound intensity 9 m from an isotropically radiating point source is 0.78 W/m². What is the power…
A: Since the point is 9 m from the point source, so, the area of sphere covered is A =πr2 ⇒4×π×92 =…
Q: Approximatelya third of people with normal hearing have ears that continuously emit a low-intensity…
A: In the given observation, the sound wave has some frequency with a certain pressure amplitude. We…
Q: 10 m from a speaker sound intensity level 60 dB. (a) What is the power of the speaker? (b) What is…
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Q: A certain noise produces 6.2x10^-4 w/m^2 of power. What is the decibel level of this noise? Given…
A: Given value--- I = 6.2 × 10-4 W/m2 . I0 = 10-12 W/m2 . We have to find--- sound level ?
Q: Calculate the density for the tissue with following acoustic impedance and speed of a sound (data…
A: Given: The acoustic impedance of the tissue is, Z=6.1×106 Pa·s/m or 6.1×106 kg/m2·s The speed of…
Q: When you blow over the edge of a pan flute pipe, a certain tone is produced. Assume that the tube is…
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Q: 30. What is the electrostatic force between two +1.0 C charges that are 0.5 m apart? (Coulomb's…
A: Given that:q1=+1.0 Cq2=+1.0 CSeperation r=0.5 mk=9.0×109 Nm2/C2e=-1.602×10-19 C
Q: he intensity sound level in air is 65 dB. Calculate Pmax if the temperature is 20 C, the density of…
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Q: The ultra-sound wave propagates in water with the density 1000 kg/m^3 and the sound velocity 1500…
A: The intensity of a sound wave is related to the pressure it creates while propagating in the medium…
Q: For a person with defective hearing ability, hearing aid is often required. Assume a hearing aid…
A: Given : the intensity of sound picked by hearing aid, I = 5.0 x 10-7 W/m2
Q: onvert the following sound pressure levels to sound pressure: Lp = 80 dB Lp = 15 dB
A: Given data, Lp=80 dBLp=15 dB
Q: How to convert 0.5 µW to dBSIL? (1 W = 1 000 000 µW).
A: Given thatdB=10 logPoutPindBSIL=?Pin=10-12 W/m2Pout=0.5 μ W/m2 As, 1μ W=10-6 Wso, Pout=5×10-7 W/m2
Q: The decibel is defined as ten times the logarithm of power gain, expressed as power out over power…
A: Given, Power out is Pout=17.4μW=17.4×10-6W And reference point (sound intensity level) is…
Q: is the capacitance of a 0010m? (b) What charg
A: Given: Area is 1 m2 Distance is 0.0010 m Voltage is 3×103V
Q: The sound wave propagating through air has a frequency of 1 kHz and a pressure wave amplitude of 10…
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Q: A piano tuner uses a tuning fork that emits sound with a frequency of 440 s-1 . Calculate the…
A: Given, Frequency of tuning fork f = 440 s-1 Velocity of sound v = 343 m/s Distance travel by sound…
Q: The following five problems should be calculated on paper, scanned or photographed, and submitted…
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Q: If the sound intensity level of a plane engine is 140 dB above the threshold of hearing. The sound…
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