Final answer:
The Reynolds number is a dimensionless parameter used to determine whether a flow is laminar or turbulent. Flow A with a Reynolds number of 1,000,000 is turbulent, while Flow B with a Reynolds number of 10,000 is laminar.
Step-by-step explanation:
The Reynolds number is a dimensionless parameter used to determine whether a flow is laminar or turbulent. For flow in a tube of uniform diameter, the Reynolds number is calculated as the product of the fluid density, speed, and tube radius, divided by the fluid viscosity. A Reynolds number of 1,000,000 (Flow A) indicates turbulent flow, while a Reynolds number of 10,000 (Flow B) indicates laminar flow.