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What is the volume of bar of copper, object made of lead, and a bar of gold?

Posted by admin as Gold Bar

I need to know the following:
What is the volume of a bar of copper?
What is the volume of an object made of lead?
What is the mass of a bar of gold?

Would be great if you could help.
The mass of the bar of copper is 250g.
The volume of the lead is 5.2cm3.
The dimensions of the gold bar are 8cm by 60cm by 5.25cm.

we need to know more information than that. A bar of copper could be any sized bar. The mass of a bar of gold is dependent on its volume. What are the dimensions of the lead object?

Then Stina Says says October 28th, 2009 at 11:35 am

we need to know more information than that. A bar of copper could be any sized bar. The mass of a bar of gold is dependent on its volume. What are the dimensions of the lead object?
References :

Computer Guy says October 28th, 2009 at 11:43 am

These are all density problems (you answered the one about lead)

Copper has a density of 8.94 gr/cc

Gold has a density of 19.30 gr/cc

So for copper, 250 g / 8.94 g/cc = 27.96 cc

For the gold, 19.30 x 8 x 60 x 5.25 = 48,636 g or 48.636kg

Grandpa
References :

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