A Cube at 100

question 21

Multiple Choice

A cube at 100.0°C radiates heat at a rate of 80.0 J/s.If the length of each side is cut in half,the rate at which it will now radiate is closest to

• A) 56.6 J/s.
• B) 40.0 J/s.
• C) 28.3 J/s.
• D) 20.0 J/s.
• E) 10.0 J/s.

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Definitions:

Retinex Theory

A color vision theory stating that the brain uses comparative information from different areas of the retina to determine the color and brightness of objects.

Visual Field

The complete scope visible in the side vision when the eye is concentrating on a central spot.

Color Vision

The ability of the human eye and brain to distinguish objects based on the wavelengths of the light they reflect or emit.

Opponent-process Theory

A psychological and neurological model that explains emotions and motivations as being the result of the interplay between contrasting processes.