A Trough Has Vertical Ends That Are Equilateral Triangles with Sides

question 160

Multiple Choice

A trough has vertical ends that are equilateral triangles with sides of length $7 \mathrm { ft }$ . If the trough is filled with water to a depth of $4 \mathrm { ft }$ , find the force exerted by the water on one end of the trough. Round to one decimal place. (The weight density of water is $62.4 \mathrm { lb } / \mathrm { ft } ^ { 3 }$ .) Select the correct answer.

• A) \(\quad 384.3 \mathrm { lb }\)
• B) \(1,337.7 \mathrm { lb }\)
• C) \(768.6 \mathrm { lb }\)
• D) \(2,675.4 \mathrm { lb }\)

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Definitions:

Elasticities

Measures of how much the quantity demanded or supplied of a good responds to changes in prices, income, or other factors.

Demand

The quantity of a good or service that consumers are willing and able to purchase at various price levels at a given point in time.

Supply

The total amount of a specific good or service available for purchase at any given price level, influenced by costs, technological innovations, and other factors.

Deadweight Loss

A loss of economic efficiency that can occur when equilibrium for a good or service is not achieved or is not achievable.