A Plane with a Tail Wind Makes Its 987-Mile Flight

question 49

Multiple Choice

A plane with a tail wind makes its 987-mile flight in 3 hours. The return flight against the wind takes a half hour longer. What is the wind speed? ​

• A) 21.5 mph
• B) 282 mph
• C) 26 mph
• D) 23.5 mph
• E) 305.5 mph

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Definitions:

Dissolution

The process by which a solid, liquid, or gas forms a solution in a solvent, often related to the disintegration of minerals in water.

Gray Limestone

A sedimentary rock composed mainly of calcium carbonate (CaCO3), typically characterized by its gray color, used in building and as an aggregate.

Stalagmite

A type of speleothem that rises from the floor of a cave due to the accumulation of material deposited on the floor from ceiling drippings.

Limestone Caves

Natural underground spaces formed by the dissolution of limestone by acidic water.