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How much heat is conducted through a brass rod (k = 110 J/s•m•C°) with length 1.2...

How much heat is conducted through a brass rod (k = 110 J/s•m•C°) with length 1.2 m cross-sectional area 0.030 m2 in 30 s when the temperature difference between its two ends is 50 C°?

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