Asked by ashley

A steel section of the Alaskan pipeline had a length of 58.5 m and a temperature of 18.0 °C when it was installed. What is its change in length when the temperature drops to a frigid -37.7 °C?
Answered by Ms. Sue
Apparently you forgot to read this before you posted your last several posts.

<b>Homework Posting Tips

Please show your work. <u>Tutors will not do your homework for you.</u> Please show your work for any question that you are posting.</b>
Answered by Writeacher
8 posts in 4 minutes -- a record!

And not a single thought of your own. =(
Answered by ashley
i wanted to post the exact question so people will have all the information. and i am sorry for making anyone angry. i don't want it done for me, i just want what formulas to use. thanks to anyone/everyone that answers!! :)
Answered by Writeacher
No one is angry. You just need to include what YOU THINK or what you don't understand for each one so that our math tutors will know how to help you.
Answered by ashley
i did delta L = (alpha)(initial L)(delta T)
delta L = (12E-6)(58.5)(55.7) = 0.0391 m and i got it wrong. i tried that answer as negative too and it was still wrong. so does anyone know where i went wrong? i REALLY appreciate that help!!!
Answered by Writeacher
You need to post those thoughts (trial and error) with the appropriate question that you posted earlier. The math tutors won't find these things here.
Answered by Damon
I also get -0.0391
Answered by ashley
ok i will do that. thanks for the help!
Answered by o
I love how no one helped great job!
Answered by Anonymous
A steel section of the Alaskan pipeline had a length of 65m and a temperature of 18 °C when it was
installed. What is its change in length when the temperature drops to a frigid of -45°C?
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