A piece of brass of mass 170kg has its temperature raised from 0^oC to 30^oC. Calculate its increase in volume, given the density of brass at 0^oC as 8.5 x 10³kgm³ and its cubic expansivity as 5.7 x 10^-1k¹

3.4 x 10^-5m³

4.3 x 10^-5m³

3.4 x 10^-5m³

3.4 x 10^-3m³

3.4 x 10^-2m³

Correct answer is C

V = $\frac{m}{p}= \frac{170}{8.5 x 10^{-3}}$ = 0.02

= $\Delta$ $\frac{\delta V}{V \delta T}$

$\delta V$ = $\Delta$ x V x $\delta$ T

= 5.7 x 10^-5 x 0,02 x 30

= 0 3.42 x 10^-5

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A piece of brass of mass 170kg has its temperature raised from 0^oC to 30^oC. Calculate its increase in volume, given the density of brass at 0^oC as 8.5 x 10³kgm³ and its cubic expansivity as 5.7 x 10^-1k¹

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A piece of brass of mass 170kg has its temperature raised from 0^oC to 30^oC. Calculate its increase in volume, given the density of brass at 0^oC as 8.5 x 10³kgm³ and its cubic expansivity as 5.7 x 10^-1k¹