A Cube of Material with Emissivity of 0

question 35

Multiple Choice

A cube of material with emissivity of 0.4 is heated from room temperature of 20°C to 100°C.The net power radiated by the cube is 20 W.What is the volume of the cube? (σ = 5.6696 × 10^-8 W/m^2·K⁴

• A)0.0014 m³
• B)0.012 m³
• C)0.11 m³
• D)1.8 m³

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Definitions:

Sexual Orientation

An individual's pattern of emotional, romantic, or sexual attraction to people of the same gender, different genders, both, or neither.

Benevolent Sexism

An attitude that feels positive and is characterized by affectionate but patronizing beliefs toward women.

Hostile Sexism

A form of sexism characterized by antipathy towards women who are perceived as challenging male power.

Glass Ceiling

An invisible barrier that prevents most women and ethnic minorities from advancing to the highest levels of occupations.