2. A gold bar has a mass of 7.6 g. What is its apparent weight in water ? Take density of gold as
19 g/cc.
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Answer:
Given,mass:gold bar=7.6g
density of gold =19g/cc
Apparent weight=W-Wb
where W=7.6g(weight of gold bar)
Density =Mass/Volume
Volume =mass/density =7.6/19 =0.4cc
Mass of 0.4cc volume of water(m)=density×Volume
=1×0.4cc
=0.4g
weight =0.4g wt
therefore, Apparent weight=W-Wb
=7.6-0.4
=7.2g
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