Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 11 - Oscillations and Waves - Problems - Page 324: 50

Answer

441 Hz

Work Step by Step

Equation 11–19b shows that the frequency is inversely proportional to the length. In this case, the wave speed does not change, but the new length is (2/3) of its old value. Therefore the new frequency is (3/2) times the old frequency of 294 Hz.
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