(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A cylindrical copper rod and an iron rod with exactly the same dimensions are welded together end to end. The outside end of the copper rod is held at 130 C, and the outside end of the iron rod is held at 0 C

What is the temperature at the midpoint where the rods are joined together?

2. Relevant equations

Q=MCdT ?

specific heat of iron =0.46 KJ/ kg k

specific heat of copper = 0.39 kj/ kg k

3. The attempt at a solution

this problem look so easy but I really have no idea how to approah to this problem,, i tried 65 C but its wrong

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Urgent, Easy question with heat

**Physics Forums | Science Articles, Homework Help, Discussion**