A rod 2 meters long.2cm in diameter and 5kg in mass is fixed at one end and is stricken by a force F. that elongates the rod by 1 cm and produces a 3rd overtone. A string of length L, and mass 750grams is pulled by a tension T=30N to produce a 3rd harmonic frequency. Determine the force F and length L, that will produce the same value of frequencies in thetwo 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 the speeds of propagation.

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