26-01-2011, 05:26 PM
(This post was last modified: 26-01-2011, 05:28 PM by Narendro Anindito.)
Lt=L0(1+αxÃŽâ€t)
Lt=10000cm(1+0,000012x10°C)
Lt=10000cm(1,00012)
Lt=10001,2cm
jarak kedua rel pada suhu 20°C = Lt-L0 = 10001,2 - 10000 = 1,2 cm = 12 mm