The Speed of Sound in Dry Air at 20ºC Is

question 21

Multiple Choice

The speed of sound in dry air at 20ºC is 343 m/s.The speed of sound in dry air at 80ºC is

• A)86.0 m/s
• B)172 m/s
• C)377 m/s
• D)686 m/s
• E)1.27 km/s

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Definitions:

Emotion

A complex psychological state that involves an experiential, physiological, and behavioral response to a personally significant matter.

Envy

A feeling of discontent or covetousness with regard to another's advantages, success, or possessions.

Competition

A mode of interaction in which power is unequally distributed, but the degree of inequality is less than in systems of domination. Envy is an important emotion in competitive interactions. Competition in the theory of human ecology refers to the struggle by different groups for optimal locations in which to reside and set up their businesses.

Dramaturgical Analysis

A perspective in sociology that interprets social interactions as if they were part of a theatrical performance, where individuals are actors on stages with roles, scripts, costumes, and sets.