A wire of length L is made up of two sections of two different materials connected in series. The first section of length
L1 = 16.6 m
is made of steel and the second section of length
L2 = 28.5 m
is made of silver. Both wires have the same radius of 5.45 ? 10?4 m. If the compound wire is subjected to a tension of 145 N, determine the time taken for a transverse pulse to move from one end of the wire to the other. The density of steel is 7.75 ? 103 kg/m3 and the density of silver is 1.05 ? 104 kg/m3.
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