Question

How to tell the difference...?

Answer 1

So I learned two equations.
\[L = L _{0}(1+\alpha \Delta T)\]
\[L = L _{0}\beta \Delta T\]

I'm still a bit confused under which conditions you would use the first one and the second one.

I asked a friend and she said that the second one is referring to the change in L ? Does that mean like how much something expands?

An example would help. :)

Answer 2

@zepdrix help please?

Answer 3

I don't understand what I'm looking at :O lol

Do you know what the equations are called..? Maybe it will refresh my memory.

Answer 4

sorry i suck at physics

Answer 5

it's thermodynamics. oh shoot. i typed the second equation wrong. the beta should be an alpha. they're the equations of linear expansion. and i think the second
So I learned two equations.
\[L=L _{0}(1+αΔT)\]

\[\Delta L=L_0ΔT\]

I'm still a bit confused under which conditions you would use the first one and the second one.

I just need an explanation on what the heck the first equation means.

Answer 6

did you try to google it?

Answer 7

yeah, but it just talks about the second one. i looked in my textbook and it doesn't really talk about the first one...

Answer 8

go to tutor.com and they should help you there

Answer 9

k thanks.

Answer 10

welcome