1.

On a cold winter day (5^(@)C), the foundation block or a statue is filled with 2.0m^(3) of concrete. By how much will the concrete's volume increase on a very warm summer day (35^(@)) if its coefficient of volume expansion is 4.0xx10^(-5)//""^(@)C ?

Answer»

`160cm^(3)`
`1,200cm^(3)`
`1,600cm^(3)`
`2,400cm^(3)`

Solution :The equation for VOLUME EXPANSION is `DeltaV=betaV_(i)DeltaT`, so
`DeltaV=betaV_(i)DeltaT=(4.0xx10^(_5))/(""^(@)C)(2.0m^(3))(35^(@)C-5^(@)C)=0.0024m^(3)xx((10CM)/(1m))^(3)=2,400cm^(3)`.


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