Some Properties of Glass Are Listed Here

question 36

Multiple Choice

Some properties of glass are listed here. Density: 2300 kg/m³
Specific heat: 840 J/kg ∙ °C
Coefficient of linear thermal expansion: 8.5 × 10^-6 (°C) ^-1
Thermal conductivity: 0.80 W/(m · °C)
A glass window pane is 2.7 m high,2.4 m wide,and 2.0 mm thick.The temperature at the inner surface of the glass is and at the outer surface 4.0°C.How much heat is lost each hour through the window under steady state conditions?

• A)1.7 × 10^{8 J}
• B)1.7 × 10^{5 J}
• C)4.7 × 10^{4 J}
• D)4.7 × 10^{1 J}
• E)1.7 × 10^{6 J}

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Definitions:

Debt-Equity Ratio

A metric indicating the balance between shareholders' equity and debt in financing a company's assets.

Capital Spending

Expenditures by a business for acquiring or upgrading physical assets such as property, industrial buildings, or equipment.

Earnings Estimate

A projection or forecast of a company's future earnings per share, often provided by analysts.

Dividend Income

Income received from owning shares in a company, usually distributed from the company's profits.