A copper bar, 3.5 meters long, at 25 degrees C is raised to a temperature of 55 degrees C. Find its increase in length in mm. Linear coefficient of thermal expansion for copper is 17 x 10^-6.
I would use 100% cotton its more absorbant and you can use flannel toobut at walmart the diapers are $1 each I would just buy them because I can't find diaper covers for NB or small sizes the smallest I could find was 12mos so I had to make mine.
Here below are several links for cloth diapers and associated products - good luck . :0)
I bought cloth diapers from K-mart and put on the little rubber pants.
dL aL dT (17*10^-6 /C)(3.5 m)(30C) 0.0018 m 1.8 mm
