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Physics, 20.09.2019 05:30 avalonr2003
The archerfish uses a remarkable method for catching insects sitting on branches or leaves above the waterline. the fish rises to the surface and then shoots out a stream of water precisely aimed to knock the insect off its perch into the water, where the archerfish gobbles it up. scientists have measured the speed of the water stream exiting the fish's mouth to be 3.7 m/s. an archerfish spots an insect sitting 15 cm above the waterline and a horizontal distance of 27 cm away. the fish aims its stream at an angle of 35 ∘ from the waterline. determine the height above the waterline that the stream reaches at the horizontal position of the insect.
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