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Author Question: When a workman strikes a steel pipeline with a hammer, he generates both longitudinal and transverse ... (Read 54 times)

Bob-Dole

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on: Jul 28, 2018
When a workman strikes a steel pipeline with a hammer, he generates both longitudinal and transverse waves. The two types of reflected waves return 2.4 s apart. How far away is the reflection point? (For steel, vL = 6.2 km/s, vT = 3.2 km/s)

Question 2

An airplane traveling at half the speed of sound emits sound at a frequency of 5 000 Hz. At what frequency does a stationary listener hear the sound as the plane approaches, and after it passes by? Assume the airplane is not flying very high.


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sultana.d

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Reply #1 on: Jul 28, 2018
Answer to Question 1

7.9 km

Answer to Question 2

10 000 Hz, 3 333 Hz


Bob-Dole

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

shailee

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Reply 3 on: Yesterday
Excellent

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