Physics Practice Problems Geometry & Trigonometry Practice Problems Solution: Many sailboats are moored at a marina 4.4 km away ...

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Solution: Many sailboats are moored at a marina 4.4 km away on the opposite side of a lake. You stare at one of the sailboats because, when you are lying flat at the waters edge, you can just see its deck but none of the side of the sailboat. You then go to that sailboat on the other side of the lake and measure that the deck is 1.5 m above the level of the water.Using the figure , where h = 1.5 m, estimate the radius exttip{R}{R} of the Earth. Caption: You see sailboat across a lake (not to scale ). exttip{R}{R} is the redious of the Earth. You are a distance exttip{d}{d} = 4.4 km from the sailboat when you can see only its deck and not its side. Because of the curvature of the Earth, the water "bulges out" between you and the boat.

Problem

Many sailboats are moored at a marina 4.4 km away on the opposite side of a lake. You stare at one of the sailboats because, when you are lying flat at the waters edge, you can just see its deck but none of the side of the sailboat. You then go to that sailboat on the other side of the lake and measure that the deck is 1.5 m above the level of the water.

Using the figure , where h = 1.5 m, estimate the radius of the Earth.
Caption: You see sailboat across a lake (not to scale ). is the redious of the Earth. You are a distance = 4.4 km from the sailboat when you can see only its deck and not its side. Because of the curvature of the Earth, the water "bulges out" between you and the boat.