Задача 40305.

What is the difference between the phase fluctuations will have two points, respectively, at a distance of 5 m and 10 m from the source of vibrations? The oscillation period of 20 ms, and the propagation velocity of vibrations 330 m / s.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.

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