Homework Help: physics

Posted by amy on Friday, December 14, 2012 at 8:53am.

The sound intensity level at a concert increases from 85 dB to 94 dB
when the concert begins. By what factor has the sound intensity increased?

physics - bobpursley, Friday, December 14, 2012 at 9:28am
each 3 db means doubling

88 db has doubled
91 db has doubled again
94 db has doubled again.

Intensity has increased 2^3 times,or 8x

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