Express the Angular Speed in Radians Per Second $0.48$ Feet Is Lowered into the Water

question 77

Multiple Choice

Express the angular speed in radians per second.
-To approximate the speed of a river, a circular paddle wheel with radius $0.48$ feet is lowered into the water. If the current causes the wheel to rotate at a speed of 13 revolutions per minute, what is the speed of the current? Express the answer in miles per hour rounded to two decimal places, if necessary.

• A) \(0.45\) miles per hour
• B) \(0.07\) miles per hour
• C) \(39.21\) miles per hour
• D) \(0.22\) miles per hour

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