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A sinusoidal transverse wave has a wavelength of 2.8 m. It takes 0.1 s for an element of the string at
a position x to move from the maximum position of ynax = 0.03 m to the equilibrium position y = 0. What
is the period of the wave, T, and the wave speed, v?
0.4 sec; 7 m/s
0.4 sec; 28 m/s
0.8 sec; 3.5 m/s
0.8 sec; 14 m/s

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