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Statement of a problem № 3468

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A wave of frequency 250 cycles/s has a phase velocity 375 m/s. (a) How far apart are two points 60° out of phase? (b) What is the phase difference between two displacements at a certain point at time 10^3 s apart?

Solution:
A wave of frequency 250 cycles/s has a phase velocity 375 m/s. (a) How far apart

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