Задача id10513

Two wires of the same material with diameters of 0.2 mm and 0.8 mm serve as heaters and are connected to the network in parallel. During long-term operation, the temperatures of the wires are the same. Find the length (in cm) of the thicker wire if the length of the thinner wire is 55 cm, and the amount of heat given off to the environment in 1 s is proportional to the surface area (at the same temperature).

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