A 1500 W Portable Heater Is Needed to Replace the Heat

question 1

Multiple Choice

A 1500 W portable heater is needed to replace the heat lost through a circular window in the wall of a home. The window is made of a single pane of glass 0.30 cm thick. The thermal conductivity for the glass is 0.63 W/(m·K) . The temperature inside the house is 20 °C and outside is −12 °C. What is the radius of the window?

• A) 47 cm
• B) 53 cm
• C) 27 cm
• D) 7.1 cm
• E) 84 cm

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Definitions:

Similarity

The state or fact of being alike; often considered in psychology as a principle by which individuals group objects or features based on shared attributes.

Disruptive Behaviors

Actions by individuals, typically children or adolescents, that are socially inappropriate, causing disturbances in the environment or interactions.

Susceptible

The condition of being susceptible to damage or impact from a specific thing or situation.

Selection

Selection refers to the process of choosing from various options or alternatives based on certain criteria.