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An incompressible fluid of uniform density flows through an infinitely long pipe. In the section shown, the pipe narrows from a diameter of 4 cm to a diameter of x cm, and the
fluid is flowing through the narrow region at a speed of 3 m/s. What is the flow speed of the fluid in the wide region of the pipe?
4 cm
3 m/s
(12x) m/s
16
3x2 ) m/s
(E) m/s
3x
(주) m/s
3x2
m/s
16

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