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Solve the all parts of given problem:

Problem: The viscosity of water at 25C is about .00089 Pa s. The inner diameter of PE160 polyethylene tubing is 1.14mm. Assume steady state laminar flow.

Part I: What pressure is necessary to get a flow of 5 mL min^-1 through a 20 cm length of this tubing?

Part II: What is the velocity of the flow?

Part III: What pressure is necessary to get a flow of 5 mL min^-1 through the same PE160 tubing if plasma is used, with viscosity of .002 Pa s?

Part IV: What pressure would be needed for the same flow of water through a 20cm length of PE60 tubing with i.d.=.76mm?

I need the right answer and steps of solving this problem. Thanks!

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