Quiz1B

# Quiz1B - 1 • 2 • v = 8.0 m/s Physics 7B-B Quiz 1 DL sec...

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Unformatted text preview: 1 • 2 • v = 8.0 m/s Physics 7B-B Quiz # 1 DL sec: Name: 1/16/08 last, frst Codes: grading use only 1 • 2 • v = 8.0 m/s 1.) A horizontal pipe is connected to a larger pipe with twice the cross sectional area as shown.   Treat the fluid flowing in the pipe as incompressible and any dissipation can be ignored.  The  initial speed of the flow at point (1) is 8.0 m/s. ® fluid  = 900 kg/m 3 a)  (50%) What can you determine about the  speed of the flow at point (2)? Because mass is conserved for the incompressible fluid the volumetric flow rates must be equal  at points (1) and (2). dV dt = vA   õ   v 1 A 1 = v 2 A 2 . We are given   A 2 = 2 A 1        õ   v 1 A 1 = v 2 2 A 1 , Solving:   v 2 = 1 2 v 1  = 4.0 m/s....
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Quiz1B - 1 • 2 • v = 8.0 m/s Physics 7B-B Quiz 1 DL sec...

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