The weight of a liquid varies as its volume V. If the weight of the liquid in a cubical container 5 cm on a side is 250 g, find the weight of the liquid in a cubical container 4 cm on a side. Help!
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$\displaystyle V \propto w$ $\displaystyle V =k w$ Using the values stated $\displaystyle 5 = 250k$ $\displaystyle k = \frac{5}{250}=\frac{1}{50}$ and $\displaystyle V = \frac{1}{50} w$ Now make $\displaystyle V=4$
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