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Q: density ( Answered,   1 Comment )
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 Subject: density Category: Science > Physics Asked by: daisy001-ga List Price: \$2.00 Posted: 15 Feb 2005 18:35 PST Expires: 17 Mar 2005 18:35 PST Question ID: 475203
 ```A 6 kg piece of metal displaces 1 Liter of water when submerged. What is its density?``` Request for Question Clarification by livioflores-ga on 15 Feb 2005 20:33 PST ```Hi!! First a useful notice: "To determine the density of any substance, one needs to know the mass and volume of the sample. The mass of solids can be determined by the use of the laboratory balance. The volume of regularly shaped solids can be determined by the dimensions and geometric formulae for volume. However, for irregularly shaped objects, it is common to use the method of water displacement. Since it is a law of physics that no two objects can occupy the same space at the same time, a substance which is more dense than water will sink in water and push aside (i.e. displace) its own volume of water." "Determination of Density": http://everyschool.org/u/global/kconover/density.html Density of a sample = mass of sample / volume of sample. If the sample displaces 1 liter of water when submerged, then its volume is 1 liter or 1 dm^3 or 0.001 m^3 . Then its density D is: D = 6 kg / 0.001 m^3 = 6,000 kg/m^3 or if you prefer other units: D = 6.0 kg/liter = 6.0 kg/dm^3 I hope that this helps you. Feel free to request for a clarification if you need it. Regards. livioflores-ga```
 ```Hi!! Excuse me, I accidentally post the answer in the request of question clarification box, now I am posting it in the correct place. Please, forgive my mistake. First a useful notice: "To determine the density of any substance, one needs to know the mass and volume of the sample. The mass of solids can be determined by the use of the laboratory balance. The volume of regularly shaped solids can be determined by the dimensions and geometric formulae for volume. However, for irregularly shaped objects, it is common to use the method of water displacement. Since it is a law of physics that no two objects can occupy the same space at the same time, a substance which is more dense than water will sink in water and push aside (i.e. displace) its own volume of water." "Determination of Density": http://everyschool.org/u/global/kconover/density.html Density of a sample = mass of sample / volume of sample. If the sample displaces 1 liter of water when submerged, then its volume is 1 liter or 1 dm^3 or 0.001 m^3 . Then its density D is: D = 6 kg / 0.001 m^3 = 6,000 kg/m^3 or if you prefer other units: D = 6.0 kg/liter = 6.0 kg/dm^3 I hope that this helps you. Feel free to request for a clarification if you need it. Regards. livioflores-ga```
 `6, give or take a bit depending on temperature. Looks like a zirconium alloy to me.`