Water Is Flowing in a Drainage Channel of Rectangular Cross-Section

question 107

Multiple Choice

Water is flowing in a drainage channel of rectangular cross-section. The width of the channel is 15 m, the depth of water is 8.0 m, and the speed of the flow is 2.5 m/s. What is the flow rate in kg/s?

• 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:

Total Variation

The overall measure of variability or spread in a dataset or the sum of explained and unexplained variation in a model.

Independent Variable

A variable in research or experiments that is manipulated or controlled by the researcher to observe its effect on the dependent variable.

Significance Level

The threshold below which a p-value is considered statistically significant, commonly set at 0.05.

Predicting

The act of forecasting future events or trends based on current or historical data.