3. The diagram below shows a waveform. 45 30 0.5 1.5 2.5 3.5 4.5 5.5 -15 Nistance Icmi -30 a) What is the amplitude of the waveform? bị What is the wavelength? c) If the period of this waveform is 0.5s, what is its frequency? Displacement (cm) is
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