Solve the Problem $7 \mathrm { ft }$ By $14 \mathrm { ft }$

question 103

Multiple Choice

Solve the problem.
-The base of a rectangular tank measures $7 \mathrm { ft }$ by $14 \mathrm { ft }$ . The tank is $17 \mathrm { ft }$ tall, and its top is $10 \mathrm { ft }$ below ground level. The tank is full of water weighing $62.4 \mathrm { lb } / \mathrm { ft } ^ { 3 }$ . How much work does it take to empty the tank by pumping the water to ground level? Give your answer to the nearest $\mathrm { ft }$ ' $\mathrm { lb }$ .

• A) 883,646 ft · lb
• B) 3,690,523 ft · lb
• C) 883,816 ft · lb
• D) 1,923,230 ft · lb

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Definitions:

Cretaceous Period

A division of Earth’s history lasting from about 145 to 66 million years ago, marked by the dominance of dinosaurs and the appearance of flowering plants.

Gymnosperms

Seed-producing plants such as conifers that do not have flowers or fruit, with seeds often exposed or on the surface of scales or leaves.

Bryophytes

Non-vascular plants that include mosses, liverworts, and hornworts, characterized by their life cycle stages and lack of vascular tissue.

Ferns

A group of non-flowering plants that reproduce via spores and have large, divided leaves known as fronds.