An oil is being pumped inside a 10.0 mm diameter pipe. The oil’s density is 855 kg/m3 and its viscosity is 2.1×10-2 Pa·s. It is required that the flow remain in the laminar regime and thus the...

An oil is being pumped inside a 10.0 mm diameter pipe. The oil’s density is 855 kg/m3 and its viscosity is 2.1×10-2
Pa·s. It is required that the flow remain in the laminar regime and thus the Reynolds number cannot exceed 2100.
What is the maximum velocity in the pipe?