haileyc2 haileyc2
  • 24-03-2016
  • Chemistry
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Somebody help?? I don't know how to do this

Somebody help I dont know how to do this class=

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Teslawhitney Teslawhitney
  • 24-03-2016
It's been a while since I've done this stuff... I'm pretty confident 3. is decibels. 2 could be perception (because perception is the pitch that a human hear designates to the frequency it receives). I'm unsure about the first one.
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