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One two and three are correct. number 4 is incorrect. I would need help with four and fiveA copper cube and an aluminum cube, each with 2.6 cm long edges, are arranged as shown. 100 C Cu A 20 C 1) (a) Find the thermal resistance R-IAx| (kA) of each cube. Cu .0959 K/W Submit You currently have 1 submissions for this question. Only 5 submission are allowed You can make 4 more submissions for this question. 2) Al 1623 You currently have 1 submissions for this question. Only 5 submission are allowed. You can make 4 more submissions for this question K/W Submit

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Answer #1

Given: Length, 1- 2.6cm Solution: Problem no: 4 The expression to find the thermal current is given by, Ai Where -Difference in the temperature R- Thermal resistance of two cube combination (ref. question no 3) 100-20 0.2582 80 0.2582 I 309.837

Problem no: 5 The temperature at the interface of the two cubes can be determined as follows We know that, I Substituting the known values in the above equation, Ai thermal resis tan ceof coppe Thermal resistance value is considered from Question no: 1 309.837-(100 +2735-T 0.0959 309.837 x 0.0959 373- 29.713+T 373 T- 373-29.713 T 343.286K T 343.286K-273K T-70.28

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