Q. A steel wire in a piano has a length of 0.60- m and a mass of 4.5 x10-3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to middle C (fC = 261.6 Hz on the chromatic musical scale)?
Q. The distance between two telephone poles id 50.0m. While a 1.00-kg bird lands on the telephone wire midway between the poles, the wire sags 0.200m. Illustrate a free-body diagram of the bird. How much tension does the bird produce in the wire?