Question: An 80.0-m-long brass rod is struck at one end. A person at b the other end hears two sounds as a result of two longitudinal

An 80.0-m-long brass rod is struck at one end. A person at b the other end hears two sounds as a result of two longitudinal waves, one traveling in the metal rod and the other traveling in the air. What is the time interval between the two sounds? The speed of sound in air is 344 m/s; relevant information about brass can be found in Table 11.1 and Table 14.1.

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