The thermal conductivity of aluminum is twice that of brass. Two rods (one aluminum and the other brass) are joined together end to end in excellent thermal contact. The rods are of equal lengths and radii
The free end of the brass rod is maintained at 0°C and the aluminum's free end is heated to 200°C. If no heat escapes from the sides of the rods, what is the temperature at the interface between the two metals? A) 76°C
B) 133°C
C) 155°C
D) 148°C
E) 92°C
B
You might also like to view...
The universe formed Helium nuclei in a process called nucleosynthesis. At that time, what fraction of the mass was converted to Helium nuclei (2 protons and 2 neutrons)?
A. 2 percent B. 50 percent C. 25 percent D. 99 percent E. 1 percent
Compare how doubling the diameter of a mirror will affect both resolution and light gathering power
What will be an ideal response?
When a 20.0-ohm resistor is connected across the terminals of a 12.0-V battery, the voltage across the terminals of the battery falls by 0.300 V. What is the internal resistance of this battery?
A) 3.60 ? B) 1.56 ? C) 0.98 ? D) 0.30 ? E) 0.51 ?
A point charge Q is placed on the x axis at x = ?2.0 m. A second point charge, ?Q, is placed at x = 1.0 m. If Q = 60 ?C, what is the magnitude of the electrostatic force on a 40-?C charge placed at the origin?
a. 16 N b. 27 N c. 32 N d. 11 N e. 3.0 N