Water enters a 5cm diameter piping system from a reservoir with volumetric flow rate of 50cm3/s. Determine whether the flow is laminar or turbulent if during the winter the water temperature is 7°C and if it reaches 18°C during the summer. What is the length of pipe necessary to reach fully developed flow? Given that the viscosity of water at 7°C and 18°C is 1.427 x 10-6m2/s and 1.05 x 10-6m2/s respectively.

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