4) If one sound has a level 23.0 dB less than another, what is the ratio of their intensities?
Q: The intensity (I) of a source of sound is 10 °Wm . I, = 10 -12 Wm . What is the sound level of 10…
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Q: Points R and S have a distance of 50 meters and 500 meters respectively from the sound source. If…
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Q: 4. (Ch. 14 conditions with pressure 101 kN/m² and density 1.20 kg/m³. Exercise 27 in Wolfson) Find…
A: Pressure = 101 kNm2density of air (ρ) = 1.20 kgm3
Q: The intensity of sound is measured in watts per square meter. Normally this is given as a relative…
A: Concept used: Intensities of different sounds can be added to produce net intensity.
Q: Determine the sound intensity level 30.0 m from a sound source that emits 20.0 W of acoustical power…
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Q: A sinusoidal wave is given by: y= 1.0 sin (2.0x - 2.0t) cm determine the velocity of this wave in…
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Q: True or False: The intensity of a 75 dB sound is calculated: e^7.5x10^−12 W/m2
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Q: 9. A sound wave moves through a medium with density 560ˍkg/m³ when it encounters a medium with…
A: Given value--- density of medium 1 = 560 kg/m3. density of medium 2 = 1500 kg/m3. We have to…
Q: 4. Undisturbed, the air has a pressure of 100 kPa (kiloPascals), otherwise known as atmospheric…
A: Note: As per the company policy, only first 3 sub-questions can be solved in one session, please…
Q: You shake a slinky continuously in an up and down fashion such that a transverse waves propagate…
A: Solution : Here, 5 peaks means 2.5 of wavelength separation between two peaks = (λ/2)
Q: The African cicada is the world's loudest insectproducing a sound intensity level of 107 dB at a…
A: The sound intensity level at r1 = 0.5 m is β1 = 107 dB
Q: A crying child emits sound with an intensity of 8.0 * 10-6 W>m2.Find (a) the intensity level in…
A: The sound intensity of the child is given as 8 x 10-6 W/m2.a)The child’s sound intensity can be…
Q: sound
A: The sound energy is transmitted in the medium through vibrations. The amplitude of a wave is…
Q: 8. A pan flute is a musical instrument consisting of several closed-end tubes of different lengths.…
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Q: he sound level measured in a room by a person watching a movie on a home theater system varies from…
A: Decible scale is like logarithmic scale L = 10dB log10(I /I0 ) I = INTENSITY
Q: A sound has a certain intensity I1. It suddenly increases to I2 so that I2 = 250I1. What is the…
A: We can calculate sound level β of the sound of intensity I from its definition. β (dB)=10log10II0
Q: By how many decibels does the intensity level of a sound increase when you increase the the…
A: increase in intensity of sound = 2.97 times I' = 2.97 I
Q: 1) The equation below describes the variation of pressure at different positions and times (relative…
A: The given equation is a mathematical representation of a sound wave. It describes how the pressure…
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: The faintest sound the human ear can detect at frequency 1kHz corresponds to an intensity of about…
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Q: A person perceives a sound that was produced 4 meters from them. How much less intense would the…
A: Intensity of a sound is inversely proportional to the square of the distance from the source.…
Q: 31. IE. A dog's bark has a sound intensity level of 40 dB. (a) If two of the same dogs were barking,…
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Q: Question 1. Show that the difference in decibel levels 3, and 32 of a sound source related to the…
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Q: If 10 W/m² corresponds to 160 dB, what is the sound intensity level, in decibels, of ultrasound with…
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Q: The human ear canal is approximately 2.5 cm long. It is open to the outside and is closed at the…
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Q: 13. What is the intensity of a sound wave of amplitude 0.002 dyne/cm2, measured in dB? ( some facts:…
A: The amplitude of a sound wave is, P=0.002 dyne/cm2
Q: Describe how you would calculate the wavelengths of sounds at the extremes of the audible range, 20…
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Q: O A sıren is designed to create a decibel level of 117 dB at a distance of am. Calculate the Sound…
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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…
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- 5. A bat is flying towards a tree while emitting a sound wave with frequency 100 kHz. The bat hears a beat frequency of 3 kHz between the emitted and reflected sound. How fast is the bat flying? (Hint: break the problem into two parts, first with the bat as the source and the tree as the listener, and then with the tree as the source and the bat as the listener.56. Suppose that a public address system emits sound uniformly in alldirections and that there are no refl ections. The intensity at a location 22m away from the sound source is 3.0 3 1024 W/m2 . What is the intensity at a spot that is 78 m away?3. Find the decibel rating, in dB to the nearest tenth, of an animal's cry with intensity of 24 x 10-⁹ W/m². [Recall that B₂-B₁= 10 log (2) and the threshold of human hearing is 10-¹² W/m²]
- please explainThe sound intensity of a conversation at a distance of 5.0 m is 1.7 x 10-7 W / m^2 . Determine the intensity at a distance of 7.0 m. Presume the sound spreads evenly in all directions.A sinusoidal wave is given by: y= 2.0 sin (3.0x - 2.0t) cm determine the velocity of this wave in cm/s with two decimal places please.
- Suppose the purr of a cat has a sound intensity that is 260 times greater than the threshold level. Find the decibel level value for the cat's purr. Round to the nearest decibel.6. You measure the intensity level of a sound wave 6 cm from its source (treat as a point source), and the result is 84 dB. What is the intensity of this sound wave? Answer: