Water Flows Through a Pipe of Radius 1 Cm and Length

question 1

Multiple Choice

Water flows through a pipe of radius 1 cm and length 1 m. The pressure difference is 100 Pa. What is the rate of flow, in litres per second? The viscosity of water is 0.001 Pa s.

• A) 0.39
• B) 3.9x10-4
• C) 3.1
• D) 0.125
• E) 390
• ANS

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Definitions:

Covert Observation

Observational research in which the subject(s) are unaware that they are being observed, often used to gather more natural behavior data.

Environment

The surrounding physical, biological, and socioeconomic conditions and factors that influence the growth, development, and survival of organisms and human communities.

Personality

A set of emotional, attitudinal, and behavioral response patterns of an individual, distinguishing one person from another.

Norms

Unwritten rules and standards that govern the behavior of individuals within a group or society, guiding what is considered acceptable or unacceptable.