A Pipe of Diameter Three Cm Is Replaced by One

question 15

Multiple Choice

A pipe of diameter three cm is replaced by one of the same length but of diameter six cm.If the pressure difference between the ends of the pipe remains the same,by what factor is the rate of flow of a viscous liquid through it changed?

• A)2
• B)4
• C)8
• D)16
• E)32

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Definitions:

Tax

A compulsory financial charge imposed by a government on individuals or entities to fund public expenditures, providing revenue for government functions.

Elasticities

Measures in economics that indicate how changes in one variable, such as price or income, affect a change in another variable, such as demand or supply.

Demand Curves

A graph showing the relationship between the price of a good and the quantity of that good that buyers are willing to purchase at various prices.

Supply Curves

Diagrams indicating how the quantity of a product offered by sellers varies with price, illustrating market supply dynamics.