Ocean waves moving at a speed of 4.0 m/s are approaching a beach at angle ?1 =
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Ocean waves moving at a speed of 4.0 m/s are approaching a beach at angle ?1 = 30o to the normal, as shown from above in Figure. Suppose the water depth changes abruptly at a certain distance from the beach and the wave speed there drops to 3.0 m/s.(a) Close to the beach, what is the angle ?2 between the direction of wave motion and the normal? (Assume the same law of refraction as for light.)(b) Explain why most waves come in normal to a shore even though at large distances they approach at a variety of angles.
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Shoreline Shallow water Deep water
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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