Question: Water flows in a cylindrical, horizontal pipe. As the pipe narrows to half its initial diameter, the pressure in the pipe changes. (a) Is the

Water flows in a cylindrical, horizontal pipe. As the pipe narrows to half its initial diameter, the pressure in the pipe changes.

(a) Is the pressure in the narrow region greater than, less than, or the same as the initial pressure? Explain.

(b) Calculate the change in pressure between the wide and narrow regions of the pipe. Give your answer symbolically in terms of the density of the water, (, and its initial speed (?

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