Flow Rate: Water, of Density 1000 Kg/m³, Is Flowing in a Drainage

question 54

Multiple Choice

Flow rate: Water, of density 1000 kg/m³, is flowing in a drainage channel of rectangular cross-section. The width of the channel is 15 m, the depth of the water is 8.0 m and the speed of the flow is 2.5 m/s. At what rate is water flowing in this channel?

• A) 2.0 × 10⁵ kg/s
• B) 2.0 × 10³ kg/s
• C) 3.0 × 10⁵ kg/s
• D) 3.0 × 10³ kg/s
• E) 3.0 × 10² kg/s

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Definitions:

Folic Acid

A B-vitamin necessary for cell growth and metabolism, important for pregnant women to prevent neural tube defects in the fetus.

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the rest of the body and returns carbon dioxide from the body to the lungs to be exhaled.

Mineral Supplement

A product taken orally that contains minerals which the body needs for good health but may not be consuming in sufficient amounts through diet alone.

Pica

An eating disorder characterized by the consumption of non-nutritive, non-food substances over a period of at least one month at an age where this behavior is considered developmentally inappropriate.