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Review of traveling waves ( 29 ( 29 . time gle sin a at x versus amplitude of graph Snapshot position x gle sin a at time versus amplitude of graph History f k v f 2 2 k . left the to traveling wave t kx sin y y . right the to traveling wave t kx sin y y m m - - λ = ϖ = π = ϖ λ π = φ + ϖ + = φ + ϖ - = Connecting snapshot and history graphs is important. + to left, and – to right
3 clicker questions for practice on connecting graphs to formulas

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The following is a snapshot at t=0 for a transverse wave traveling to the right with velocity 2 m/s. Which of the following equations is correct for this wave? A B C D E 0% 0% 0% 0% 0% 0 of 5 40 2 4 6 8 10 12 -1 -0.5 0.5 1 0 2 4 6 8 10 12 meters +2 -2 ( 29 ( 29 ( 29 ( 29 [ ] . above the of None . 5 t x sin 2 ) t , x ( y . 4 t 2 x 2 sin 2 ) t , x ( y . 3 t 2 x sin 2 ) t , x ( y . 2 t x 2 sin 2 ) t , x ( y . 1 π - π = π - π = π - π = π - π = A B C
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