# Air at (1 mathrm{~atm}) and (25^{circ} mathrm{C}) flows in a 4-cm-diameter glass pipe at a velocity of

## Question:

Air at \(1 \mathrm{~atm}\) and \(25^{\circ} \mathrm{C}\) flows in a 4-cm-diameter glass pipe at a velocity of \(7 \mathrm{~m} / \mathrm{s}\). The friction factor for this flow is

**(a)** 0.0266

**(b)** 0.0293

**(c)** 0.0313

**(d)** 0.0176

**(e)** 0.0157

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**Related Book For**

## Fluid Mechanics Fundamentals And Applications In SI Units

**ISBN:** 9789814821599

4th Edition

**Authors:** Yunus Cengel, John Cimbala