Transverse waves travel with a speed of 18 ms in a string, Ask an Expert

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Q. Transverse waves travel with a speed of 18 m/s in a string under tension of 5 N. What tension is required for a wave speed of 27 m/s in the same string?

Q. When people sleep, their metabolic rate is about 2.6*10^-4 C/(s*kg). How many calories does a 75 kg person metabolize while getting a good night's sleep of 8.5 hours?

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