A block with a speaker bolted to it is connected to a spring having spring constant k=20.0N/m as in figure P17.40 The total mass of the block and speaker is 5.00lg and the amplituted if this unit's motion is 0.500m. a) If the speaker emits sound waves of frequency 440Hz, determine the highest and lowest frequencies heard by the person to the right of the speaker b) If the maximum sound level heard by the person is 60.0 dB when he is closed to the speaker, 1.00m away, what is the minimum sound level heard by the observer? Assume that the speed of sound is 343m/s
A block with a speaker bolted to it is connected to a spring having spring constant k=20.0N/m as in figure P17.40 The total mass of the block and speaker is 5.00lg and the amplituted if this unit's motion is 0.500m. a) If the speaker emits sound waves of frequency 440Hz, determine the highest and lowest frequencies heard by the person to the right of the speaker b) If the maximum sound level heard by the person is 60.0 dB when he is closed to the speaker, 1.00m away, what is the minimum sound level heard by the observer? Assume that the speed of sound is 343m/s
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A block with a speaker bolted to it is connected to a spring having spring constant k=20.0N/m as in figure P17.40
The total mass of the block and speaker is 5.00lg and the amplituted if this unit's motion is 0.500m.
a) If the speaker emits sound waves of frequency 440Hz, determine the highest and lowest frequencies heard by the person to the right of the speaker
b) If the maximum sound level heard by the person is 60.0 dB when he is closed to the speaker, 1.00m away, what is the minimum sound level heard by the observer? Assume that the speed of sound is 343m/s
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