The Combination of Cold Temperatures and Wind Speed Determine What

question 241

Multiple Choice

The combination of cold temperatures and wind speed determine what is called wind chill. The wind chill is a temperature that is the still-air equivalent of the combination of cold and wind. When the wind speed is 25 mph, the wind chill WC depends on the temperature t (in degrees Fahrenheit) according to . For what temperatures does it feel at least 30°F colder than the air temperature? That is, find t such that . Round your answer to two decimal places. ​ ​

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Definitions:

Zygomatic Arch

The bone structure that forms the prominence of the cheek, extending from the zygomatic process of the temporal bone to the zygomatic bone.

Facial Nerve

The seventh cranial nerve that controls the muscles of facial expression, among other functions.

Masseter Muscle

A facial muscle that plays a major role in the chewing of solid foods, connecting the lower jawbone to the cheekbone.

Orbicularis Oris

A complex of muscles in the face that encircles the mouth, controlling movements like closing or puckering the lips.