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Two men are working on a construction site. One man hits a long steel rod exactly once every second. On the other end of the rod, the second man holds his ear close to the rod and hears the rod being hit twice per second, once through the rod and a half second later, through the air.

How long is the rod? (Assume the speed of sound through air is $343\text{ m/s}$ and the speed of sound through steel is $5941\text{ m/s}$.)

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