A rod 200 cm long is clamped 50 cm from one end, as shown in Fig. 22-6. It is set into longitudinal vibration by an electrical driving mechanism at one end. As the frequency of the driver is slowly increased from a very low value, the rod is first found to resonate at 3 kHz. What is the speed of sound (compression waves) in the rod?

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0 A 50 N 100 A 1 segment, 2/2 Fig. 22-6 150 N 200 cm