A Fluid Is Flowing with an Average Speed of $0.0034 \mathrm {~N} \cdot \mathrm { s } / \mathrm { m } ^ { 2 }$

question 56

Multiple Choice

A fluid is flowing with an average speed of 1.5 m/s through a tube that has a radius of 2.0 mm and is 18 cm long. The drop in pressure is 967 Pa. What is the viscosity of the fluid?

• A) \(0.0034 \mathrm {~N} \cdot \mathrm { s } / \mathrm { m } ^ { 2 }\)
• B) \(0.0018 \mathrm {~N} \cdot \mathrm { s } / \mathrm { m } ^ { 2 }\)
• C) \(0.028 \mathrm {~N} \cdot \mathrm { s } / \mathrm { m } ^ { 2 }\)
• D) \(0.0056 \mathrm {~N} \cdot \mathrm { s } / \mathrm { m } ^ { 2 }\)
• E) \(0.013 \mathrm {~N} \cdot \mathrm { s } / \mathrm { m } ^ { 2 }\)

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Definitions:

Depressions

Extended periods of significant decline in economic activity across an economy, characterized by high unemployment, low consumer spending, and reduced industrial output.

Self Regulating

A system or market that is able to adjust and correct itself without external intervention.

Keynes

John Maynard Keynes, a British economist whose ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments.

Aggregate Demand

The total demand for all goods and services within an economy at a particular time and price level, including consumption, investment, government spending, and net exports.