Answer
6.3 km/s.
Work Step by Step
Use the law of refraction, equation 11–20.
$$\frac{sin \theta_2}{sin \theta_1}=\frac{v_2}{v_1}$$
$$v_2=v_1\frac{sin \theta_2}{sin \theta_1}=(8.0 km/s)\frac{sin 33^{\circ}}{sin 44^{\circ}}=6.3km/s$$
Physics: Principles with Applications (7th Edition)
by Giancoli, Douglas C.
Published by
Pearson
ISBN 10:
0-32162-592-7
ISBN 13:
978-0-32162-592-2
Chapter 11 - Oscillations and Waves - Problems - Page 325: 58
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