too fast vibrations for the eardrum to bear, so it ruptures when the noise reach that degree
2006-12-16 23:21:56
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answer #1
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answered by ray2_moot 2
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Normal conversation registers about 60 decibels, a barking dog up to 70, while the subway is around 85 decibels -- all in the safe zone. But the rock band at 120 decibels and your personal stereo system at up to 130 decibels could cause hearing loss if you listen too long.
2006-12-17 07:22:36
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answer #2
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answered by ravi shekar 1
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at 130 decibel, the motion of sound will break our ear-drum, which causes deafness to us
2006-12-17 07:14:48
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answer #3
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answered by James Chan 4
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Because the human ear cannot tolerate intensity above 90dB. The frequency of the human ear is from 20-20,000Hz . The dynamic range is 120dB, which is deafening! Have a good day!
2006-12-17 07:26:25
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answer #4
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answered by wheeliebin 6
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A sound with an intensity above the pain threshold destroys the cochlea which is the system and the nervous cells useful to understand. when they are destroyed the auditive system can not due anything
2006-12-17 07:20:04
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answer #5
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answered by maussy 7
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Because the pressure of the air breaks our eardrums : )
2006-12-17 07:19:36
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answer #6
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answered by Skran 2
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