Jawabanmu

2014-04-10T19:21:17+07:00
Alfa=delta L/(Loxdelta T) =0,5/(80x50) =0,5/4000 =0,000125/°C Lt=Lo(1+alfa x delta T) =50(1+0,000125x60) =50(1+0,0075) =50+0,325 =50,325cm maaf kl ada yg salah
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