DLM02_fnts - your first step in solving these problems 5.1...

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Exit Handout DLM 02 FNTs: Use the fluid transport equation (fully extended Bernoulli equation) to logically respond to these FNT prompts. These FNTs were used previously as quiz questions; you should by now be able to apply the energy density model, using the fluid transport equation, to respond to the prompts. 5.1- 8. Three identical garden hoses (same length and same inner diameter) are attached to three identical faucets which supply water at the same pressure to all three hoses. All three hoses are open to the atmosphere at their other ends. Hose A runs along a level path at the elevation of the faucet. Hose B runs down a hill and its free end is 10 ft below the level of the faucet. Hose C runs up and over a high wall, but its free end is back at the elevation of the faucet. How do the flow rates through the three hoses compare? Justify your answer using the models we have studied. Make certain to explicitly show the pair of points you are applying the model between; this should be
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Unformatted text preview: your first step in solving these problems. 5.1- 9 Water flows through a horizontal pipe similar to the pipe in DL. It enters the pipe at point (1), then leaves the pipe at point (2), which is open to the atmosphere. The height of the water in each vertical column is shown at right. Now suppose that the length of this pipe is doubled. The pressure at point (1) is the same as before. Point (2) is still open to the atmosphere. Water is again allowed to flow from point (1) to point (2). (a) We find the flow rate in the longer pipe is smaller than the flow rate in the shorter pipe. Explain why this happens. By what factor would the flow of water through this pipe decrease? Explain your answer and show your reasoning. (b) Fill in the water levels in each of the vertical columns in the pipe whose length has been doubled, in the diagram below. Be clear and accurate in drawing each water level. 1 flow 2 open to air 1 flow 2 open to air Side Views showing elevations A B C...
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