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22-04-2024
Physics

Answered

A box with a total surface area of 1.7 m² and a wall thickness of 3.21 cm is made of an insulating material. A 7.7 W electric heater inside the box maintains the inside temperature at 131°C above the outside temperature. Find the thermal conductivity of the insulating material. Answer in units of w/m·◦ C.

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