Question a sound wave in our classroom has speed of 380 ms, Ask an Expert

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Question: A sound wave in our classroom has speed of 380 m/s. There is a speaker at each end of the table that has 4.0 m length. Both speakers are emitting coherent waves at a frequency of 95 Hz. You are at a distance 3.0 m directly in front of one of the speaker.

Part A. What is the phase minimum phase difference between the waves arriving to you from the two speakers?

I want help for above question show me each step.

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