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Question: a simple instrument can be made for measuring the...

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) A simple instrument can be made for measuring the speed of Air water flowing in an open channel by making a 90° bend in a clear tube as shown and pointing the open end of the tube upstream. The height of the water column in the tube above the free surface of the flowing water can be used to calculateH20 water speed. The tube shown has a diameter of 8 mm and extends 0.5 m into the water. a) Derive an equation for the speed of the water as a function of H and calculate H for a water speed of 10 m/s. b) The bend in the tube is shown as rounded. Discuss how the answer to part a might change if the bend were a right angle rather than rounded. c) Estimate the drag on the tube.

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