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Introductory Physics Homework Help
Superposition of two one-dimensional harmonic waves
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[QUOTE="orangephysik, post: 6867614, member: 734442"] Oh right, that should be ##cos(0.075 m^{-1} \cdot x)## . I forgot the units. So ##s_{1} + s_{2} =7 cm \cdot cos(\frac{55s^{-1}\cdot t-11.15 m^{-1}\cdot x}{2})cos(0.075m^{-1} \cdot x)## and so the maximum would be at when ##cos(0)=1##. I get ##x_{max_{1}} = \frac{55s^{-1}\cdot t}{11.15 m}## and ##x_{max_{2}} =0## which means the values of the maximum amplitude would then be ##7 cm \cdot cos(0.37s^{-1} \cdot t)## for ##x_{max_{1}}## ##7 cm \cdot cos(27.5s^{-1}\cdot t)## for ##x_{max_{2}}## Since the second value is greater, then only. ##x_{max_{2}} =0## ? (I omitted the case for ##cos(\pi)=-1## since this would give amplitudes of the same magnitude, but only with a minus sign at the front) [/QUOTE]
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Introductory Physics Homework Help
Superposition of two one-dimensional harmonic waves
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