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Get Full Access to Conceptual Physics - 12 Edition - Chapter 20 - Problem 6p
Get Full Access to Conceptual Physics - 12 Edition - Chapter 20 - Problem 6p

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# Imagine a Rip van Winkle type who lives in the mountains.

ISBN: 9780321909107 29

## Solution for problem 6P Chapter 20

Conceptual Physics | 12th Edition

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Problem 6P

Imagine a Rip van Winkle type who lives in the mountains. Just before going to sleep, he yells, “WAKE UP,” and the sound echoes off the nearest mountain and returns 8 hours later. Show that the distance between Rip and the imaginary mountain is nearly 5000 km (about the distance from New York to San Francisco).

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Solution 6P We know the that velocity of sound is v = 330 m/s. Distance covered in 8 hours is given by s = v × t s = 330 × 8 × 3600 s = 9504000 m Then the distance of imaginary mountain is s/2 = 9504000/2 = 4752000 m 4752 km ~ 5000 km

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