genyjoannerubiera
01.02.2020 •
Physics
You hear sounds at the following decibel levels: 5 db, 10 db, 20 db, and 40 db. which sound is 10 times higher than the lowest pressure humans can hear?
40 db
10 db
20 db
5 db
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Ответ:
to convert it dB = 20 log ( p / p0 )
where p is the pressure you want to hear
p0 is the lowest pressure the human can hear
since you want 10 times higher the lowest possible
p/p0 = 10
dB = 20 log ( 10 )
dB = 20 dB
Ответ:
the lowest pressure the human can hear is 20 micro Pa or 20x10^-6 Pa.
to convert it dB = 20 log ( p / p0 )
where p is the pressure you want to hear
p0 is the lowest pressure the human can hear
since you want 10 times higher the lowest possible
p/p0 = 10
dB = 20 log ( 10 )
dB = 20 dB
Explanation:
Ответ: