EBK PHYSICS FOR SCIENTISTS AND ENGINEER
9th Edition
ISBN: 8220100461262
Author: SERWAY
Publisher: Cengage Learning US
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Chapter 17, Problem 17.68AP
Three metal rods are located relative to each other as shown in Figure P17.68. where Ls = L1 + L2. The speed of sound in a rod is given by ν = √Y/p, where Y is Young’s modulus for the rod and ρ is the density. Values of density and Young's modulus for the three materials are ρ1 = 2.70 X 103 kg/m3, Y1 = 7.00 × 1010 N/m, ρ2 = 11.3 × 103 kg/m3, = 1.60 × 1010 N/m2. ρs = 8.80 × 103 kg/m3 Ys = 11.0 × 1010N/m2. If L3 = 1.50m, what must the ratio L1/L2if a sound wave is to travel the length of rods 1 and 2 in the same time interval required for the wave to travel the length of rod 3?
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Chapter 17 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
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