A sinusoidal wave can be described by a cosine function, which is negative just as often as

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A sinusoidal wave can be described by a cosine function, which is negative just as often as positive. So why isn’t the average power delivered by this wave zero?

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University Physics with Modern Physics

ISBN: 978-0133977981

14th edition

Authors: Hugh D. Young, Roger A. Freedman

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Question Posted: Oct 11, 2018 12:38 PM

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A sinusoidal wave can be described by a cosine function, which is negative just as often as

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As Eq1521 shows the power at a point on the string at ...View the full answer

University Physics with Modern Physics

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