Two rods, one made of brass and the other made of copper, are joined end to end. The length of the brass section is 0.280m and the length of the copper section is 0.720m. Each segment has cross-sectional area 5.90×103m2. The free end of the brass segment is in boiling water and the free end of the copper segment is in water and an ice mixture, in both cases under normal atmospheric pressure. The sides of the rods are insulated so there is no heat loss to the surroundings.
1. What is the temperature of the point where the brass and copper segments are joined? Express your answer to three important figures and include the appropriate units.
2. What mass of ice is melted in 5.00min with the heat conducted by the composite rod? Express your answer to three important figures and include the appropriate units.