Tyndall, John, 1820-1893 · New York : Appleton · leaf 210
Via. 91. 256 … 202 SOUND. this fork is 4 feel 4 inches, at the moment the prongreaches b the foremost point of the sonorous wave will beat c, 2 feet 2 inches distant from the fork. The motionof the wave, then, is vastly greater than that of the fork. Fig. 92.a b 2Q incjies >c < V In fact, the distance a b…
Sound
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