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the wave functions for two harmonic waves are given by :
y1(x,t)=(0.1m)sin(1.0x-3.0t),
y2(x,t)=(0.1m)sin(1.0x-3.0t+π/2)
where x is in metres and t is in seconds. write the wave function of the resultant wave when the two waves interfere. what is the amplitude of the resultant wave
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