Question
Verify that the flow of oil is laminar (barely) for an oil gusher that shoots crude oil 25.0 m into the air through a pipe with a 0.100-m diameter. The vertical pipe is 50 m long. Take the density of the oil to be $900 \textrm{ kg/m}^3$ and its viscosity to be $1.00 \textrm{ N/m}^2$ (or $1.00 \textrm{ Pa}\cdot\textrm{s}$).

Since the Reynold's number is less than 2000, this flow is laminar.

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