The Speed of Sound in Air Is Dependent Upon the Air

question 41

Multiple Choice

The speed of sound in air is dependent upon the air temperature and other factors. The speed of sound increases from 334 m/s to 341 m/s between 8:00am and 11:00am. If a horn produces sound with wavelength 0.75 m at 8:00am, what would it produce at 11:00am, assuming the frequency is unchanged?

• A) 73 cm
• B) 77 cm
• C) Not enough info given to solve.
• D) 75 cm

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Definitions:

Higher Latitudes

Regions of the Earth closer to the poles, characterized by colder temperatures and, in many cases, unique ecological conditions.

Deserts

Extremely dry areas of land with sparse vegetation, characterized by receiving less than 25 centimeters (10 inches) of precipitation per year.

Earth's Land Surface

The solid surface layer of the Earth, as opposed to the ocean or sky; includes continents and islands.

Desert Insects

Insects adapted to survive in desert environments with extreme conditions such as high temperature and low moisture.