Homework 9-problems

Homework 9-problems - le (txl65) Homework 9 Spurlock...

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Unformatted text preview: le (txl65) Homework 9 Spurlock (11881) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points Piston 1 in the figure has a diameter of 0 . 25 in and is attached to a lever arm a distance 1 . 8 in from the pivot point. Piston 2 has a diameter of 1 . 3 in. An external force F acts on the lever arm at a distance 16 in from piston 1 as shown below. 455 lb 2 1 16 in 1 . 8 in F In the absence of friction, find the force F necessary to support the 455 lb weight. Assume the height difference between the pis- tons is negligible. Answer in units of lb. 002 (part 1 of 2) 10.0 points A liquid of density 1100 kg / m 3 flows with speed 1 . 06 m / s into a pipe of diameter 0 . 28 m . The diameter of the pipe decreases to 0 . 05 m at its exit end. The exit end of the pipe is 5 . 43 m lower than the entrance of the pipe, and the pressure at the exit of the pipe is 1 . 4 atm ....
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Homework 9-problems - le (txl65) Homework 9 Spurlock...

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