Question: A riverside warehouse has two open doors, as in figure. Its interior is lined with a sound-absorbing material. A boat on the river sounds its

A riverside warehouse has two open doors, as in figure. Its interior is lined with a sound-absorbing material. A boat on the river sounds its horn. To person A, the sound is loud and clear. To person B, the sound is barely audible. The principal wavelength of the sound waves is 3.00 m. Assuming person B is at the position of the first minimum, determine the distance between the doors, center tocenter.

20.0 m 150 m-

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