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:

Current Ratio

Current Ratio is a liquidity ratio that measures a company's ability to pay short-term obligations or those due within one year.

Net Income

The total profit of a company after deducting all expenses, taxes, and costs from its total revenue.

Profitability Ratios

Financial metrics that assess a firm's ability to generate profit relative to its revenue, assets, equity, or other financial metrics over a specified period.

Average Common Stockholders' Equity

The average equity stake held by common shareholders within a company, assessed over a specific period.