A Ventilation Fan Has Blades 0

question 1

Multiple Choice

A ventilation fan has blades 0.25 m in radius rotating at 20 rpm.What is the tangential speed of each blade tip?

• A) 0.02 m/s
• B) 0.52 m/s
• C) 5.0 m/s
• D) 20 m/s

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