A 10-Cm Copper Cube Sits on a 100 ^$\circ$ C Heat Source with a 10-Cm Cube of Ice Sitting

question 61

Multiple Choice

A 10-cm copper cube sits on a 100 ^$\circ$ C heat source with a 10-cm cube of ice sitting on top of the copper cube.How long does it take the ice to melt? The density of ice is 0.917 kg/m³ and the thermal conductivity of copper is 386 W/(m·K) .

• A)383 s
• B)412 s
• C)213 s
• D)79 s
• E)154 s

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Definitions:

Lines of Sight

In management or design, the clear visual or conceptual path for workflow, communication, or strategic alignment.

Triangulation

The use of multiple methods or data sources in research to improve the accuracy and validity of results by cross-verifying findings.

Ethnography

A qualitative research method focused on studying cultures, practices, and communities through observation and participation.

Sociometry

A quantitative method for measuring social relationships, used to identify the structure of groups and the position of individuals within them.