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March 28, 2017

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1. If 31 waves pass by a point in 1.7 s, what's the frequency?

my answer: 18.2 Hz

2. if a crest with an amplitude of 7cm interferes with a trough with an amplitude of 10 cm, the resulting wave has an amplitude of:

my answer: -3

  • Physics -- check answers please - ,

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