The blank brick wall measures length -4 m, height - 2.5 m, thickness -50 cm (2 bricks). Calculate the heat flow if the internal temperature of the wall is 20°C and the external temperature is 0°C. Determine the amount of heat lost through the wall in 1 s and 1 hour. Estimate the power of the heat source required to compensate for heat loss. The thermal conductivity of brick is 0.8 W/m*K.

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