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Question: a converging elbow in a pipeline turns a flow of...

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(1) A converging elbow in a pipeline turns a flow of methanol (40 °C) through an angle of 135 in a vertical plane. The diameter at section 1 is 40 cm and at section 2 is 20 cm. The volume of the elbow flow passage between sections 1 and 2 is 0.22 m3. The fluid pressures at sections 1 and 2 are 155 kPa and 92 kPa, respectively, and the flow rate is 0.40 m3/s. At this instant, vertical momentum is accumulating in the elbow at a rate of -100 kg m/s If the mass of the solid pipe elbow is 13 kg, what is the vertical component of the anchoring force required to hold the elbow in place? 35

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