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(II) Consider a wave generated by the periodic vibration of a source and given by the expression D(x, t) = A sin2 k(x – ct), where x represents position (in meters), t represents time (in seconds), and c is a positive constant. We choose A = 5.0 m and c = 0.50 m/s. Use a spreadsheet to make a graph with three curves of D(x, t) from x = –5.0 m to +5.0 m in steps of 0.050 m at times t = 0.0, 1.0, and 2.0 s. Determine the speed, direction of motion, period, and wavelength of the wave.
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