calculate change in length?
2008-03-26 4:01 am
Calculate the change in length of an aluminum rod of length 9 m when its temperature increases by 90 deg C. (Coefficient of linear expansion of aluminum is 2.4e-5/deg C)
回答 (3)
2008-03-26 4:04 am
✔ 最佳答案
Final length - Initial length = Length change
2008-03-26 4:08 am
DeltaLength/L_o = Coefficient*DeltaTemp
DeltaLength=Coefficient*DeltaTemp*L_o
DeltaLength=2.4e-5/deg C *90 deg C*9m=.01944m
DeltaLength=Coefficient*DeltaTemp*L_o
DeltaLength=2.4e-5/deg C *90 deg C*9m=.01944m
2008-03-26 4:07 am
Delta L = L*C*DeltaT = 9*2.4E-5*90 = .01944 m
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