A sound absorber attenuates the sound level by 20dB. The intensity decreases by a factor of ____________ a) 100 b) 1000 c) 10000 d) 10
Q: siren emitting sound of frequency 800Hz is going away from a static listener with a speed of 30m/s.…
A: A
Q: What is the difference in sound levels of two sounds having intensities of 10 and 500 µW/cm^2? A. 13…
A:
Q: Points R and S have a distance of 50 meters and 500 meters respectively from the sound source. If…
A:
Q: 5. Compute the average sound pressure level of the following readings by simple arithmetic averaging…
A: Arithmetic averaging method is used for calculating simple averages. For data where the preserving…
Q: A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to…
A: Speed (v) of a wave is given by v=f.λ where f is the frequency in hertz and λ is in meters. Given…
Q: A point source produces sound with a power of 200 W. What is the intensity of sound at a distance of…
A:
Q: What frequency sound has a 0.824 m wavelength when the speed of sound is 300 m/s? Hz
A: To determine: The frequency of the sound Given: Wavelength of sound, λ=0.824 m Speed of sound,…
Q: Which one is incorrect about sound? Younger people are more sensitive to lower-pitch tones. Humans…
A: Which one is incorrect about sound 1) Younger people are more sensitive to lower-pitch tones. 2)…
Q: You hear a sound of (4.5x10^1) decibels. What is the intensity? Give your answer in microwatts/m2 to…
A: according to company guideline we need to solve only first question. if you want to answered any…
Q: A sound wave in air has a frequency of 500 Hz and a wavelength of 68 cm. What is the air…
A:
Q: threshold into
A: correct option is b
Q: You want a pan pipe with a frequency of 261 Hz. 1) If the speed of sound is 343 m/s, what would be…
A:
Q: For an approaching sound source (relative to a stationary observer), the frequency of the sound wave…
A: Required : Fill in the gaps
Q: 2) The speed of sound in air is 343 m s. If the frequency of a sound wave is 220 Hz, what is the…
A: Given data : Frequency of sound wave is represented by f Speed of sound in air is represented by V…
Q: What is the minimum frequency of sound heard by human ears? O a. 20 Hz O b. 200 Hz O c. 2 Hz O d.…
A: Frequency: The term frequency describes the relationship among the sound and the wavelength of a…
Q: if the intensities of two sounds are 6.4*10-1 W/m2 and 2.7*10-3 W/m2, what are their decibel levels.…
A:
Q: A whistle produces sound of frequency of 1.00 kHz. If a listener moves with a speed of 30 m/s away…
A:
Q: Find the sound level in dB of 6.57 10-2 W/m2 ultrasound used in medical diagnostics. _____ dB
A: Given data I = 6.57 10-2 W/m2
Q: 2) The speed of sound in air is 343 m s. If the frequency of a sound wave is 220 Hz, what is the…
A: Given that, Speed of the sound wave (v) = 343 m/s Frequency of the sound wave (f) = 220 Hz We have…
Q: What sound level in dB is produced by earphones that create an intensity of 4.00 x 10-2 w/m2? dB
A: Given data: Intensity (I) = 4.00×10-2 W/m2 Required: Sound level in dB
Q: A sound has an intensity of 5 x 10^(-7) watt per sq. m. What is its intensity level? *
A:
Q: 3. The speed of sound in salt water is approximately 1500 m/s. Humpback whales can vocalize sounds…
A: Given Speed of sound in salt water , v = 1500 m/s Ferquency range is varying from 30 Hz to 8000…
Q: A train travelling at 14.77 m/s is approaching a stationary observer, and sounding a warning horn at…
A: Given Speed of sound = 324.1 m/s Frequency of source =369.5 Hz Speed of source =14.77 m/s
Q: The sound intensity at a certain location is 4.0×10-6 W/m2. What is the sound intensity level at…
A: Given : Intensity at certain level (I) = 4.0×10-6 W/m2. threshold intensity (I0) = 1 x 10-12…
Q: Mountain llamas produce a sound that has a wavelength of 4.98m. If the speed of sound in the…
A:
Q: Find the wavelength of air at 20°C of an 19 Hz sound wave. Table 15-1 Speed of Sound In Varlous…
A: Sound waves are longitudinal waves. This implies that the direction of propagation of the wave is…
Q: Find the sound level in dB of 5.52 10-2 W/m2 ultrasound used in medical diagnostics. _____dB
A: Given Intensity (I) = 5.52 × 10-2 W/m2 sound level in dB is defined as :- L = 10 Log [ I /Io]…
Q: A sound wave of frequency 1000 Hz and travelling speed 340 m/s is reflected from the closed end of…
A: We need to compute- Distance at which successive node occur The data provided is given as- Tube is…
Q: Verify the values given in the textbook for the wavelengths (in air) of the lowest and highest…
A: Speed of the sound is related to frequency and wavelength as V=fλ
Q: 2) The speed of sound in air is 343 m s. If the frequency of a sound wave is 220 Hz, what is the…
A: Given value--- wave speed = 343 m/s. frequency = 220 Hz. We have to find--- wavelength?
Q: what frequency of sound traveling in air at 40 oc has a wavelength of 0.50 m a) 20 Hz b) 344.7 Hz…
A: Given data: Sound wave traveling in air Temperature (T) = 40 °C Wavelength (λ) = 0.50 m Required:…
Q: An observer in a car moving at 14.4 m/s is receding from a stationary sound source which is sounding…
A:
Q: What is the sound intensity level of a sound with an W/m?? intensity of 1.7 x 10-4 dB
A:
Q: Question 10 (1 point) A police car approaches and you detect the frequency heard to be 850 Hz. The…
A:
Q: A sound has an intensity of 0.0000024 Watts per square meter. What is this sound's decibel level?
A:
Q: What sound intensity level corresponds to a sound intensity of 6.96 x 10-3 W / m2
A: we know that,sound intensity in dBi=10log10(ii0)
Q: 2) The speed of sound in air is 343 m s. If the frequency of a sound wave is 220 Hz, what is the…
A: We know λ.f=vhereλ is the wavelengthf is the frequency v is the speedSoλ=vf
Q: The speed of sound in a gas at T= 100°C is equal to 386.9 m/s. If the temperature of the gas is…
A:
Q: If the intensity of the sound is doubled, what will the sound level be in decibels* O 3dB O-3dB O2dB…
A:
Q: Determine the frequency of a sound wave if it has a speed of 350 m/s and a wavelength of 2.50 m. Hz
A: Frequency will be 140 Hz.
Q: Human audible range frequency is within 20 Hz-20 kHz. Determine the sound wavelength for the lowest…
A: Given data: Speed of sound wave in air at 20oC, v=344 m/s Lowest audible frequency, f=20 Hz
Q: The source of a sound wave has a power of 5.91macrowatts.if it is a point source A)what is the…
A: The objective of the question is to find the intensity of the sound wave and the sound level at a…
A sound absorber attenuates the sound level by 20dB. The intensity decreases by a factor of ____________
a) 100
b) 1000
c) 10000
d) 10
Step by step
Solved in 2 steps
