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13. OBINPHYS8 6.P.024. Approximately how many times louder is a 145-dB sound than a 85-dB sound? 1000000 

          13. OBINPHYS8 6.P.024. Approximately how many times louder is a 145-dB sound than a 85-dB sound? 1000000
13. OBINPHYS8 6.P.024. Approximately how many times louder is a 145-dB sound than a 85-dB sound? 1000000

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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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Approximately how many times louder is a 145-dB sound than a 85-dB sound?
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Transcript

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00:01 Hello students in this question, we need to compare the loudness of two sounds.
00:06 And here it is given that the sound intensity level of the first sound is taken as beta 1, which is equal to 145 decibels, it will be equal to 10, low to the base strength of intensity i1 divided by standard intensity i -0.
00:24 On the other hand, the sound intensity of the second sound can be taken as beta 2, which is equal to 85 decibels, it will be equal to 10, log to the base 10 of intensity i2 divided by standard intensity i 0.
00:40 Next we can find out the change in sound intensity level using the equation delta beta to be equal to the value of beta 1 minus beta 2...
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