Exam information•Third exam: Thursday April 5th from 6-7:30 PM•Bring a calculator•Bring three 3”x5”cards with whatever you want to remember (both sides OK)•Where to take the exam?– Same place you took exam 2.Exam covers 10.3-14.5 (but not sections 12.6-12.8)
Bridge motion is really wave motion•Each part of the bridge oscillates in a coordinated way•A set of closely coupled oscillators•Disturbances travel up and down the bridge
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Coupled oscillators and waves•The bridge exhibits wave motion: disturbances travel up and down it•Waves happen in systems of coupled oscillators: material in each spot just oscillates back and forth•The first oscillator shakes the second, transferring energy to it…