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a) From the graph, maximum displacement (a) = 0.4 cm
b) From the graph, period T = time for one cycle = 0.20 seconds So f = 1 / T = 1 / 0.20 = 5 Hz.
c) Velocity = frequency x wavelength hence wavelength = 2 / 5 = 0.4 m.
Mutiso answered the question on October 12, 2018 at 11:32
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