You are trying to overhear a juicy conversation. But when you are a distance of 25.0 m awayfrom the conversation, the intensity level (or sound level) is the same as that of an averagewhisper at 20.0 dB. So you decide to move closer to the conversation in order to increase theintensity level to a more discernable 50.0 dB. How far away will you be from theconversation? Include a basic sketch of the situation.

Answered: Image /qna-images/answer/2a009caa-aef0-4476-a82e-7266d94555d4.jpg

Answered: You are trying to overhear a juicy…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

*108. D A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 350. When a jet aircraft is taking off, the sound intensity level experienced by the crew member is 88 dB. What sound intensity level would the crew member experience if he removed the protective earplugs?
You are trying to overhear a most interesting conversation, but from your distance of 10.0 m , it sounds like only an average whisper of 20.0 dB . So you decide to move closer to give the conversation a sound level of 60.0 dB instead. How close should you come? Formula: I = I0⋅10(β/10) a) What intensity I1 corresponds to 20.0 dB ? b) What intensity I2 corresponds to 60.0 dB ?
2. A spherical source radiates sound uniformly in all directions. At a distance of 11 m, the sound intensity level is 94 dB. What power is radiated by this source? W cei16 cei16. 116 cci16 cei ceil6 ccil6⁹ to the the 911
Q3: A 1.0 W point source emits sound waves isotopically. Assuming that the energy of the waves is conserved, find the intensity (a) 1.0 m from the source and (b) 2.5 m from the source. (Hint: the area of the sphere is 4ar')
The softest sound a human ear can hear is at 0 dB (Io = 10-12 W/m2). Sounds above 130 dB cause pain. A particular student's eardrum has an area of A = 51 mm^2. a. What is the most power, in watts, the ear can receive before the listener feels pain? b. What is the smallest power, in watts, the ear can detect?
A good hearing aid will uniformly increase the sound intensity of all audible frequencies of sound by 31.7 dB. If such a hearing aid picks up sound having a frequency of 300 Hz at an intensity of 3.08 x 10-11 w/m2, determine the sound intensity the hearing aid delivers to the eardrum. W/m2
1. The low-frequency speaker of a stereo set has a surface area of A = 0.05 m? and produces 1 W of acoustical power. (a) What is the intensity at the speaker? (b) If the speaker projects sound uniformly in all directions, at what distance from the speaker is the intensity 0.1 W/m²?
Urgent please! A firecracker produces a power of 2.5x10-3 mw.a. What is the intensity of a firecracker at a distance of 3.00 m from thefirecracker?b. How many firecrackers would be required to produce a sound level of 120db at a distance of 5.00 m from the firecrackers?
A.) I have an open-closed tube with a length of 0.7 m and a radius of 0.5 cm. What is the wavelength of mode number 2, in m? B.) I have an open-open tube with a length of 0.7 m and a radius of 1.6 cm. What is the frequency of mode number 1, in Hz? The speed of sound is 343 m/
You know that you sound better when you sing in the shower. This has to do with the amplification of frequencies that correspond to the standing-wave resonances of the shower enclosure. A shower enclosure is created by adding glass doors and tile walls to a standard bathtub, so the enclosure has the dimensions of a standard tub, 0.75 m wide and 1.5 m long. Standing sound waves can be set up along either axis of the enclosure. What are the lowest two frequencies that correspond to resonances on each axis of the shower? These frequencies will be especially amplified. Assume a sound speed of 343 m/s.
You hear a song from your playlist you haven't heard in a while and it warrants you to commence singing. As you are sing, the power of the compression wave you create is approximately 297.02 nW (note, nW is nano-Watts). What is the intensity of this sound as measured by your roommate who is standing 6.04m from you? Please give your answer in units of nW/m2. This unit is not a common one. Usually, the unit would simply be Watts per square-meter (which would be your answer divided by a million!). This goes to show you that are ears are amazingly sensitive to very tiny sound intensities. Note: Intensity was a topic covered in section 11.1, and I will provide the formula: I = P / A where P is the power in units of Watts, and A is the surface area of a sphere of radius "L" (in this problem).
Thunderstruck: A lightning bolt strikes nearby - just 20.7 m away. A recording device registers the sound intensity of the thunder at 122 dB. After 101 seconds, another nearly identical bolt strikes further away. You see the flash immediately. Then, 8 seconds later you hear the thunder. What is the intensity of the sound of thunder from the second lightning strike, in decibels (dB)? The speed of sound in air is 343 m/s.

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