Consider the flow of oil at 20 °C in a 30-cm-diameter pipeline at an average (mean) velocity of 2 m/s. A 200-m-long section of the pipeline passes through icy waters

of a lake at 0 °C.Measurements indicate that the surface temperature of the pipe is almost constant Ts-constant-0 °C. Use the property values provided below and answer the following questions: Density: p-=888 kg/m^3 \text { Viscosity: } v=\frac{\mu}{\rho}=901 \times 10^{-6} \mathrm{~m}^{2} / \mathrm{s} Prandtl number: Pr =10400 Thermal conductivity:k = 0.145 W/mK Specific heat: cp =1880 J/KgK Properties: for oil: (1) What is the Reynolds number of the pipe flow? (4 points)