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In searching the bottom of a pool at night, a watchman shines a narrow beam of...

In searching the bottom of a pool at night, a watchman shines a narrow beam of light from his flashlight, 1.3 m above the water level, onto the surface of the water at a point d = 2.8 m from his foot at the edge of the pool.

Where does the spot of light hit the bottom of the h = 2.3-m-deep pool? Measure from the bottom of the wall beneath his foot.

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