A chunk of unknown rock masses \( 38.254 \pm 0.003 \) grams and has a volume of \( 15.0 \mathrm{...

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A chunk of unknown rock masses \( 38.254 \pm 0.003 \) grams and has a volume of \( 15.0 \mathrm{~cm}^{3} \).
(a) The density of the rock is \( 2.55 \mathrm{~g} / \mathrm{cm}^{3} \).
(b) The absolute error in density is \( 0.02 \mathrm{~g} / \mathrm{cm}^{3} \).
(c) The relative error in density is 0.007 .
(d) The number of significant figure in density is 3.
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