\f10. [-/1 Points] DETAILS SERCP11 11.5.P.049.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. The temperature of the free end of the copper rod is held constant at 100C, and that of the far end of the aluminum rod is held at 0.C. If the copper rod is 0.50 m long, what must be the length of the aluminum rod so that the temperature at the junction is 50C? m Need Help? Read It Master It 11. [-/1 Points] DETAILS SERCP11 11.5.P.051. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A rectangular glass window pane on a house has a width of 1.1 m, a height of 2.2 m, and a thickness of 0.57 cm. Find the energy transferred through the window by conduction in 12 hours on a day when the inside temperature of the house is 22C and the outside temperature is 2.0C. Take surface air layers into consideration. Need Help? Read It Watch It 12. [-/1 Points] DETAILS SERCP11 11.A.P.057.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 50-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0.C. A piece of lead at 96C is dropped into the cup, and the final equilibrium temperature is 120C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 x 103 1/kg and 4,186 J/kg . .C, respectively. The specific heat of lead and copper are 128 and 387 1/kg . C, respectively.) kg Need Help? Read It Master It 13. [-/1 Points] DETAILS SERCP11 11.A.P.059. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A student measures the following data in a calorimetry experiment designed to determine the specific heat of aluminum. (Do not assume atmospheric pressure.) Initial temperature of water and calorimeter: 70"C Mass of water: 0. 400 kg Mass of calorimeter: 0. 040 kg Specific heat of calorimeter: 0.63 kJ/kg . .C Initial temperature of aluminum: 26.5.C Mass of aluminum: .200 kg Final temperature of mixture: 66.20 Use these data to determine the specific heat of aluminum. J/kg . .C Need Help? Read It14. [-/1 Points] DETAILS SERCP11 11.A.P.063. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A bar of gold (bar A) is in thermal contact with a bar of iron (bar 8) of the same length and area (see the figure below). One end of the compound bar is maintained at 7, = 74.0C, and the opposite end is at 30.0.C. Find the temperature at the junction when the energy flow reaches a steady state, I OC Insulation B 30.0 C Need Help? Read It