2) A heat conducting rod, 1.60 m long, is made of an aluminum section, 0.90 m long, and a copper section, 0.70 m long. B
Posted: Sat Jul 02, 2022 7:08 pm
2) A heat conducting rod, 1.60 m long, is made of an aluminum section, 0.90 m long, and a copper section, 0.70 m long. Both sections have a cross-sectional area of 0.0004 m². The aluminum end and the copper end are maintained at temperatures of 30° C and 170° C, respectively. The thermal conductivities of aluminum and copper are 205 and 385 W/mK, respectively. The temperature at the junction of aluminum and copper is closest to: A) 100 °C B) 129 °C C) 73 °C D) 146 °C E) 138 ° C 2)