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Consider fluid flowing through a circular pipe of constant cross-section. The pipe diameter D=0.2 m and length L=8 m. The inlet velocity V_in=1 m/s. Consider the velocity to be constant over the inlet cross-section. The fluid exhausts into the ambient atmosphere which is at a pressure of 1 atm. Take density ρ=1 kg/ m³ and coefficient of viscosity _µ= 2 x 10^-3^ kg/(ms). The Reynolds number _Re based on the pipe diameter is

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