Calculate the cross-sectional mean velocity of water flow in a pipe. The pipe diameter is 5.0 mm, the pipe length is 20 m, the water flow rate is 1.90x103 m/s, the density of water is 997 kg/m3, and...

Extracted text: Calculate the cross-sectional mean velocity of water flow in a pipe. The pipe diameter is 5.0 mm, the pipe length is 20 m, the water flow rate is 1.90x103 m/s, the density of water is 997 kg/m3, and the kinematic viscosity is 1.00 ×106 m?/s.