The outer ends of two bars A and B are at 100°C and 50° respectively. Calculate the temperature at the welded joint if they have the same cross-section and the same length and their thermal conductivities are in the ratio of A:B = 7:5. a) 79.166°C b) 80.548°C c) 20.157°C d) 58.147°C

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The outer ends of two bars A and B are at 100°C and 50° respectively. Calculate the temperature at the welded joint if they have the same cross-section and the same length and their thermal conductivities are in the ratio of A:B = 7:5.

a) 79.166°C

b) 80.548°C

c) 20.157°C

d) 58.147°C

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