How long is the rod if sound of the blow is twice
A man strikes a long aluminum rod at one end. Another man at the other end with his ear close to the rod, hears the sound of the blow twice (once through the air and once through the rod), with a 332 ms interval between them. How long is the rod?
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The sound of the blow twice (once through the air and once through the rod), with a 332 ms interval between them. How long is the rod?
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