- #1

JoeyBob

- 256

- 29

- Homework Statement
- See attached

- Relevant Equations
- change length= a*original length * change in temp

So if I am understanding the question correctly, I need to find the change in temperature that causes one rights outer radii to be the same as another rings inner radii.

Now what I tried is two equations

change length_1= a_1*original length_inner * change in temp

change length_2= a_2*original length_outer * change in temp

But the problem is that there is one too many unknowns here - i don't know the temp, change in L_1 or change in L-2. Either there's another equation I am missing or I am using the wrong approach.

Now what I tried is two equations

change length_1= a_1*original length_inner * change in temp

change length_2= a_2*original length_outer * change in temp

But the problem is that there is one too many unknowns here - i don't know the temp, change in L_1 or change in L-2. Either there's another equation I am missing or I am using the wrong approach.