A speaker produces 11W of acoustical power. If the speaker projects sound uniformly in all directions,...
A speaker produces 11W of acoustical power. If the speaker projects sound uniformly in all directions, at what distance from the speaker will the loudness of the sound be 98.3 dB?
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A speaker produces 11W of acoustical power. If the speaker
projects sound uniformly in all directions,...
Question 11 A speaker produces 1W of acoustical power. If the speaker projects sounduniformly in all...
Question 11 A speaker produces 1W of acoustical power. If the speaker projects sounduniformly in all directions, at what distance from the speaker will the loudness of the sound be 99.1 dB? Enter answer here 9.79 9.79 m CHECK ANSWER 1 of 4 attempts used
A power saw radiates sound uniformly in all directions and is measured at 103 dB 1.66...
A power saw radiates sound uniformly in all directions and is measured at 103 dB 1.66 m from the saw. At what distance from the saw should you be so that the sound is at a safe level of 65.0 dB? Number Units (Anser must have 3 significant figures.)
2) (8 points) Show your work for full credit. An omnidirectional loudspeaker produces sound waves uniformly...
2) (8 points) Show your work for full credit. An omnidirectional loudspeaker produces sound waves uniformly in all directions. A sound intensity of 100 W/mºis measured 1.0 m from the speaker. (a) How far from the speaker will the sound intensity be measured to be 1.0 W/mº? (b) At what distance from the speaker will the sound intensity level be 100.0 dB?
A spherical source radiates sound uniformly in all directions. At a distance of 14 m, the...
A spherical source radiates sound uniformly in all directions. At a distance of 14 m, the sound intensity level is 90 dB. What power is radiated by this source?
A spherical source radiates sound uniformly in all directions. At a distance of 9 m, the...
A spherical source radiates sound uniformly in all directions. At a distance of 9 m, the sound intensity level is 100 dB. What power is radiated by this source?
A speaker at an open-air concert emits 600 W of sound power, radiated equally in all...
A speaker at an open-air concert emits 600 W of sound power, radiated equally in all directions. A.)What is the intensity of the sound 4.50 m from of the speaker? B.) What sound intensity level would you experience there if you did not have any protection for your ears? c.)Earplugs you can buy in the drugstore have a noise reduction rating of 23 decibels. If you are wearing those earplugs, but your friend Phil is not, how far from the...
A source emits sound uniformly in all directions. There are no reflections of the sound. At...
A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source, the intensity of the sound is 3.3 × 10-3 W/m2. What is the total sound power P emitted by the source?
Q2. A siren radiates sound uniformly in all directions. A person standing a distance L from...
Q2. A siren radiates sound uniformly in all directions. A person standing a distance L from the siren regsiters a sound intensity level of 115 dB but a person standing twice that distance registers an intensity of 109 dB. What is the ratio of the intensities at those points. What will the sound intensity level at a distance of 12 L be?
Two small loudspeakers emit sound waves of different frequencies equally in all directions. Speaker A has...
Two small loudspeakers emit sound waves of different frequencies equally in all directions. Speaker A has an output of 1.30 mW, and speaker B has an output of 2.00 mW. Two speakers A and B are represented as points which serve as the centers of concentric circles representing sound waves emanating from the speakers. The concentric circles about speaker A are spaced more closely together than the concentric circles about speaker B. The points lie along a horizontal line, and...
The sound from a trumpet radiates uniformly in all directions in air with a temperature of...
The sound from a trumpet radiates uniformly in all directions in air with a temperature of 20∘C. At a distance of 4.98 m from the trumpet the sound intensity level is 56.0 dB. The frequency is 586 Hz. Use 344 m/s for the speed of sound in air, 1.20 kg/m3 for the density of air, and 1.00×10−12 W/m2 for the reference intensity. a) What is the pressure amplitude at this distance? b) What is the displacement amplitude? Use 1.42×105 Pa...
Question 11 A speaker produces 1W of acoustical power. If the speaker projects sounduniformly in all directions, at what distance from the speaker will the loudness of the sound be 99.1 dB? Enter answer here 9.79 9.79 m CHECK ANSWER 1 of 4 attempts used
A power saw radiates sound uniformly in all directions and is measured at 103 dB 1.66 m from the saw. At what distance from the saw should you be so that the sound is at a safe level of 65.0 dB? Number Units (Anser must have 3 significant figures.)
2) (8 points) Show your work for full credit. An omnidirectional loudspeaker produces sound waves uniformly in all directions. A sound intensity of 100 W/mºis measured 1.0 m from the speaker. (a) How far from the speaker will the sound intensity be measured to be 1.0 W/mº? (b) At what distance from the speaker will the sound intensity level be 100.0 dB?
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