Which of the following equations is used to calculate dynamic viscosity?

Which of the following equations is used to calculate dynamic viscosity?

Step 1: Understand what dynamic viscosity is. It is a measure of a fluid's resistance to flow.
Step 2: Learn about Poiseuille's law, which describes how fluids flow through a pipe.
Step 3: Identify the formula from Poiseuille's law that relates to dynamic viscosity. The formula is: η = (π * r^4 * ΔP) / (8 * L * Q), where η is dynamic viscosity, r is the radius of the pipe, ΔP is the pressure difference, L is the length of the pipe, and Q is the volumetric flow rate.
Step 4: Use this formula to calculate dynamic viscosity by plugging in the values for radius, pressure difference, length, and flow rate.

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