9. A door bell generates a 58.0 dB sound at a close distance. What is the intensity of the sound generated by the bell at the same distance? W/m? 20 eib eib20 620
Q: A point source produces sound with a power of 200 W. What is the intensity of sound at a distance of…
A:
Q: eaker source of the sound level of 10 dB. What is the intensity of N = 181 ces of the same sound…
A: Given: Sound level, β=10 dB Speed, N=181 The intensity of threshold hearing,Io=10-12W/m2
Q: double the intensity of sound wave in air while leaving the frequency unchanged. The pressure,…
A:
Q: The intensity of a sound wave coming from a spherical source 5 meters away is 0.1 ", m2 What is the…
A: Given data: Distance of the spherical source (r) = 5 m Intensity of the sound (I) = 0.1 W/m2 Need to…
Q: A 1.30-m string is held fixed at both ends. When driven by a 140-Hz source, the string vibrates in 4…
A:
Q: What frequency does a stationary observer hear when a sound source oscillating at 515 Hz and moving…
A: Given data: Velocity of sound (v) = 340 m/s Velocity of source (u) = 10 m/s Observer is stationary…
Q: The sound level at a distance d320 m from a loudspeaker is 70 dB. What is the power (in Watt) at…
A:
Q: Given that the threshold of hearing is 10-16 W/cm2, the intensity of a sound wave with a power of…
A: Intensity of sound wave (I) = 10-12 Wcm2Threshold of hearing (Io) = 10-16 Wcm2
Q: An ultrasound machine can measure blood flow speeds. Assume the machine emits acoustic energy at a…
A: original frequency (f) = 2.2×106 Hz speed of wave in human tissue (v) = 1580 m/s speed of blood (v')…
Q: QUESTION 23 A string with two fixed ends has a mass of 2.0 g and a length of 40 cm. If the string is…
A:
Q: window with an area of 0.450 m2 receives 26.0 J of sound energy in 6.00 seconds. a. What is the…
A:
Q: 6. The intensity levels of two people's speech are 63.0 dB and 64.5 dB, respectively. What is the…
A: The 'dB' unit is a logarithmic unit, therefore we can not simply directly add them. We need to use a…
Q: 81. A physics professor demonstrates the Doppler effect by tying INT a 600 Hz sound generator to a…
A: In this question we have to find the highest and lowest frequencies heard by the student. Please…
Q: A transverse wave on a string is described by the wave function: y=0.12 sin((TT/18)x+9Tt) where x…
A: The given equation is y=0.12 sinπ18x+9πt .............................................. (1) The…
Q: . What is the frequency of the first harmonic in a closed end air column with a length of .172…
A: given that length of closed organ pipe L = 0.172 m velocity of sound = 340 m/s first harmonic L =λ…
Q: 5. What is the intensity level in decibels for a sound that has an intensity of 5×105 W/m²? A. 79 dB…
A: Sound intensity level (I0 in dB) is reference intensity corresponding at 0 dB: I0 = 1 × 10-12 W/m2…
Q: What is the critical angle for total internal reflection for light entering a certain medium (n = 3)…
A: Light is entering a certain medium having a refractive index n1 = 3 from the air which has a…
Q: 9. The sound intensity from a jack hammer breaking concrete is 2.40 W/m² at a distance of 1.90 m…
A: Given, Sound intensity I=2.40 W/m2 Distance r=1.90 m from the point of impact. Sound intensity…
Q: What is the Intensity of 87 dB in units of W/m ? A. 2.54 x 10^-3 B. 5.01 x 10^-4 C. 1.01 x 10^-6 D.…
A:
Q: 10. Determine the speed of sound in concrete material with Young's modulus of 3 x 10^10 N/m2 and a…
A:
Q: An 180 dB sound can cause permanent hearing damage. By what factor is this larger than the quietest…
A: The quietest audible sound for human is 0 dB.
Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…
A:
Q: The sound intensity 3.6 m from an isotropically radiating point source is 0.86 W/m². What is the…
A: Power = Intensity × Area P = I × 4πr² P = 0.86 × 4π(3.6)² P = 140.059 W
Q: Jo A factory uses 12 metal stamping machines. When all machines are operating, they produce a sound…
A:
Q: A person shouting at the top of his lungs emits about 1.0 W of energy as sound waves. Match the…
A: Given: The power of the sound waves emitted by the person shouting: P = 1.0 W.
Q: 56. The intensity of a speaker is 80 dB at 10 meters. Calculate the intensity of the speaker if the…
A:
Q: 10 What should be the decibel rating of a sound if it has to be twice as loud as a 13 dB sound?…
A: Given that: β1=13 dB
Q: What is the sound intensity level of a sound with an W/m?? intensity of 1.7 x 10-4 dB
A:
Q: A sound has an intensity of 0.0000024 Watts per square meter. What is this sound's decibel level?
A:
Q: A very loud train whistle has an acoustic power output of 100 W. If the sound energy spreads out…
A: Given that:P=100 Wd=100 m
Q: A boy has climbed to the top of a 6m tall tree. When he shouts, the sound waves have an intensity of…
A:
Q: 6. An organ pipe is 128 cm long. What is the second audible harmonic if the pipe is open at both…
A: Given data: Length (L) = 128 cm = 1.28 m Speed of sound in air (v) = 339 m/s Required: Frequency of…
Q: In the afternoon, the decibel level of a busy freeway is 100 dB with 100 cars passing a given point…
A:
Q: The sound level at a distance d%3D28 m from a loudspeaker is 70 dB. What is the power (in Watt) at…
A: Sound intensity level, Threshold sound intensity, Distance from the speaker,
Q: 5. An organ pipe is 118 cm long. What is the third audible harmonic if the pipe is open at both…
A:
Q: 60. What is the length of an open end air column that would resonate in the first harmonic at 262 Hz…
A:
Q: Q26. A sound of 40 dB is, A. twice as intense as a sound of 20 dB B. 4 times as intense as a sound…
A: A sound of 40dB is twice the intensity of sound of 20dB. (40dB= 2x 20dB).Hence, the appropriate…
Q: What is the time period of a sound wave with velocity 250 m/s in air and a wavelength of 0.50 m?…
A: Given that-Wavelength, λ=0.50 mSpeed of wave, c= 250 m/sWe know that-Wavelength,…
Q: If the sound volume increases from 30 dB to 80 dB, then the intensity of the sound increases by a…
A: Given data The initial sound volume is given as β1=30 db The final sound volume is given as β2=80…
Q: 9. A transverse wave is described by the wave function rady y = (0.30 m) sin [(12) t + (10m²¹)x]…
A: Since wave equation is y=Asin(wt-kx)
Q: 56. Suppose that a public address system emits sound uniformly in alldirections and that there are…
A: Distance from the sound source, r=22 m Intensity of the sound at distance r=22 m is I=3.0×10-4W/m2…
Q: The noise level generated by domestic air conditioner ranges between
A: When it comes to air conditioners, the noise level is measured in decibels (dB). Decibels are a unit…
Q: The speed of sound in vacuum at 100-degree C is: O a. 1.17 m/s O b. 200.275 m/s O c. 386.87 m/s O d.…
A: The speed of sound in vacuum needs to be told.
Q: A bell emits sound energv uniformly in all directions at a rate of 4.00 x 103 w. What is the…
A: Given that, Sound Energy emitted radiated at rate that is power(P) = 4 × 10^(-3) W distance (d) =…
Q: At a distance of 59 m from an airplane engaged in take-off the intensity of sound is 1.33 Wim What…
A:
Q: The meatus of the ear is a tube 25 mm long and closed at one end. If the speed of sound in air is…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps