Homework Answers
I guess u forgot to take the root of your answer as this value corresponds to r^2
Hence correct answer will be r= 3.13 m
And procedure will be As
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Question 11 A speaker produces 1W of acoustical power. If the speaker projects sounduniformly in all...
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?
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...
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...
QUESTION 6 A. At a concert, a person is standing 2.00 m from a speaker, where...
QUESTION 6 A. At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0 m from the speaker. Assume the sound is emitted equally in all directions. 10 = 1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? "The intensity is 7.50 x 10-3 W/m2 The...
Problem 12.36 A small omnidirectional stereo speaker produces waves in all directions that have an intensity...
Problem 12.36 A small omnidirectional stereo speaker produces waves in all directions that have an intensity of 8.00 W/m? at a distance of 2.50 m from the speaker. Part A At what rate does this speaker produce energy? Express your answer in watts. P= Submit Request Answer • Part B What is the intensity of this sound 8.00 m trom the speaker? Express your answer in watts per meters squared. I- W/m? Reguest Answer Submit P Pearson <Homework-chapter 12 Problem...
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?
Question 11 (1 point) A siren at a distance of 30. m produces a sound intensity...
Question 11 (1 point) A siren at a distance of 30. m produces a sound intensity of 1.0x10^-2 W/m^2. What sound level is expected from this siren at that location? 01.0x10^2 dB 1.0 db 01.0x10^1 dB 1.0x10^-1 dB 1.0x10^-2 dB
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.)
QUESTION The power output of a sound system is increased by a factor of 25. By...
QUESTION The power output of a sound system is increased by a factor of 25. By what factor should you adjust your distance from the speakers so the sound intensity is the same? . PRACTICE IT .............. Use the worked example above to help you solve this problem. A small source emits sound waves with a power output of 81.3 W. (a) Find the intensity 3.08 m from the source. . 75X Your response is within 10% of the correct...
Can you please explain all parts I meant to ask this question A block with a...
Can you please explain all parts
I meant to ask this question
A block with a speaker bolted to it is connected to a spring having spring constant k = 24.0 N/m and oscillates as shown in the figure below. The total mass of the block and speaker is 3.00 kg, and the amplitude of this unit's motion is 0.500 m. The speaker emits sound waves of frequency 500 Hz. www (a) Determine the highest frequencies heard by the person...
QUESTION 6 A. At a concert, a person is standing 2.00 m from a speaker, where the sound intensity is 0.120 W/m2. Another person is 32.0 m from the speaker. Assume the sound is emitted equally in all directions. 10 = 1.00 x 10-12 W/m2 a) What is the intensity in W/m2 at 32.0 m from the speaker? b) What is the sound level in dB at 32.0 m from the speaker? "The intensity is 7.50 x 10-3 W/m2 The...
Problem 12.36 A small omnidirectional stereo speaker produces waves in all directions that have an intensity of 8.00 W/m? at a distance of 2.50 m from the speaker. Part A At what rate does this speaker produce energy? Express your answer in watts. P= Submit Request Answer • Part B What is the intensity of this sound 8.00 m trom the speaker? Express your answer in watts per meters squared. I- W/m? Reguest Answer Submit P Pearson <Homework-chapter 12 Problem...
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?
Question 11 (1 point) A siren at a distance of 30. m produces a sound intensity of 1.0x10^-2 W/m^2. What sound level is expected from this siren at that location? 01.0x10^2 dB 1.0 db 01.0x10^1 dB 1.0x10^-1 dB 1.0x10^-2 dB
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.)
QUESTION The power output of a sound system is increased by a factor of 25. By what factor should you adjust your distance from the speakers so the sound intensity is the same? . PRACTICE IT .............. Use the worked example above to help you solve this problem. A small source emits sound waves with a power output of 81.3 W. (a) Find the intensity 3.08 m from the source. . 75X Your response is within 10% of the correct...
Can you please explain all parts
I meant to ask this question
A block with a speaker bolted to it is connected to a spring having spring constant k = 24.0 N/m and oscillates as shown in the figure below. The total mass of the block and speaker is 3.00 kg, and the amplitude of this unit's motion is 0.500 m. The speaker emits sound waves of frequency 500 Hz. www (a) Determine the highest frequencies heard by the person...
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