Water Is Flowing in a Drainage Channel of Rectangular Cross-Section $1000 \mathrm {~kg} / \mathrm { m } ^ { 3 }$

question 61

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 mass flow rate of the water? The density of water is $1000 \mathrm {~kg} / \mathrm { m } ^ { 3 }$

• A) \(3.0 \times 10 ^ { 2 } \mathrm {~kg} / \mathrm { s }\)
• B) \(2.0 \times 10 ^ { 5 } \mathrm {~kg} / \mathrm { s }\)
• C) \(2.0 \times 10 ^ { 3 } \mathrm {~kg} / \mathrm { s }\)
• D) \(3.0 \times 10 ^ { 3 } \mathrm {~kg} / \mathrm { s }\)
• E) \(3.0 \times 10 ^ { 5 } \mathrm {~kg} / \mathrm { s }\)

---

Definitions:

Hardiness

A personality trait characterized by resilience and the ability to endure stressful situations without becoming overwhelmed.

Demands Of Stress

Demands of stress refer to the various physical or psychological requirements placed on an individual that necessitate adaptation or coping strategies.

Change

The act or process of becoming different, which may occur naturally over time or result from intervention.

Irrational Appraisal

An evaluation or judgment of a situation or event that significantly distorts reality, often leading to inappropriate emotional or behavioral responses.