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Posted by on Monday, November 22, 2010 at 3:33pm.

A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 14.8 kg and 1.89 × 10-3 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of the gold in the rock.

  • Physics - , Thursday, December 29, 2011 at 12:38am

    Mass of gold in rock = 11.333 kg

    Therefore rock is 76.58% gold

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