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A rod 2 m long, 2 cm in diameter and 5 kg in mass is fixed...

A rod 2 m long, 2 cm in diameter and 5 kg in mass is fixed at one end and is stricken by a force F to produce a 3rd overtone and elongates at 1 cm. A string of length L and mass 750 grams is puled by a T = 30 to produce a 3rd harmonic frequency. Determine the force F and length L that produces the same value of frequencies in the two materials, if the sound wave produced by the rod was heard 0.25 seconds later by a listener 3 meters away. What are the frequencies produced and speeds of propagation of waves?

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