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Engineering, 23.12.2020 17:10 officialrogerfp3gf2s

In order to test the thermal insulation of a given material, you build a hollow cube of 25.0 cm of its ring using 1.5 cm thick laminas. You put a thermometer and a 100 W heater inside the box. Once the balance ˆ has been reached temperature inside the box and 90 °C and while the outside temperature is 25 °C °C. Determine the resistance of the box.

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