Question: please answer fast i will give you helpful rating Two identical copper rods, each 20 cm long, have a thermal diffusivity of 1.17 cm2/sec. They

please answer fast i will give you helpful rating

Two identical copper rods, each 20 cm long, have a thermal diffusivity of 1.17 cm2/sec. They are initially at a constant temperature of 0 degrees C and 50 degrees C., respectively. At time: = O, the rods are placed endtoend so that heat can flow freely between them. Accept the left end of the combined rod (at): = O) is held at zero temperature and the right end (atx = 40) is insulated. Find the series solution to the problem. Use the first term of the series solution to estimate the time required for the center of the 40 cm rod (atx = 20) to reach 5 degrees C

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