Water Is Flowing in a Horizontal Pipe of Diameter D

question 44

Multiple Choice

Water is flowing in a horizontal pipe of diameter d. If you want to change the diameter of this pipe so that the speed of the water would be half as great as it was, what should be the new diameter?

• A) d/4
• B) d/2
• C) d /
• D) d
• E) 2d

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