Jawabanmu

2014-03-25T00:10:02+07:00
Diket : Lo =3 m
         delta l = 0,00091
         delta t = 60
ditanya : alfa (a)=....?
jawab :
a = delta L / Lo. delta t
   = 0,00091 / 3 . 60
   = 0,00091 / 180
   = 0,00000506
2014-03-25T00:11:23+07:00
Delta l = 3,00091 - 3 = 0,00091

delta L = L mula" . k . delta T
0,00091 = 3 . k . 60
k = 5,05x 10^{-6}