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You hook a pipe with an hourglass shape to a water hose. The diameter of the large ends is 6 centimeter, and the narrow neck has a diameter of 2 centimeter. The flow speed of the water is 1 meter per second at the large side.

a) Determine the flow speed of the water, v2, as it moves through the narrow neck? Find what is the change in pressure (P2- P1) measured in the small neck?

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