A lighthouse is located on a small island 3 km away from the nearest point P on

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A lighthouse is located on a small island 3 km away from the nearest point P on a straight shoreline and its light makes four revolutions per minute. How fast is the beam of light moving along the shoreline when it is 1 km from P?

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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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Question Posted: Jun 25, 2010 11:20 PM

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A lighthouse is located on a small island 3 km away from the nearest point P on

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