Copper Coffee
Posted in Uncategorized on 05/20/2007 04:47 pm by adminA look at what is currently available on eBay
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A Cylindrical coffee can with a diameter of 15.50cm?
is used to measure the volume of an irregular shaped chiny piece of metal. The water in the can rises 3.2cm when the metal is submerged. Determine the volume of the metal. If the metal has a mass of 11.65kg, what might it be made of - brass, copper or gold?
The volume of the metal is equal to the volume of the water that it displaces.
V = Volume of water displaced = (pi/4)(D^2)h
where
D = diameter of the coffee can = 15.5 cm (given)
h = height of risen water = 3.2 cm (given)
Substituting appropriate values,
V = (pi/4)(15.5)^2(3.2)
V = 603.8141 cm^3
Since this is also the volume of the irregularly shaped metal and knowing its mass, then its density
D = mass/volume
D = 11.65/603.8141
D = 0.019294 kg/cm^3
Offhand, I cannot say what kind of metal it is. I would suggest that you go check out a table that will give you the densities of various metals.
Good luck.
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