A piece of wire has a density of 8.6/cm. What is the mass of 11.3 cm of the wire? Anser in units of g.

8.6 grams/cm

So if there's 1 cm of it, it's 8.6 grams.

If there's 2 cm of it, it's (8.6)(2) grams.

If there's 3 cm of it, it's (8.6)(3) grams.

So on and so forth.

what is the volume in cubic meters? Answer in units of m^3

I want to try this problem to see if I can do it... If the logic is wrong, or you can't follow it, don't take my word for it... hope it makes some sense...

density = mass per unit of volume ( I assume the 8.6/cm is in terms of cubic centimeters?)

volume = mass divided by average density

{(8.6)(11.3)grams} divided by (8.6 grams/cm)

You take that result of 11.3/cm and convert to cubic meters.

There are 1,000,000 cubic cm in 1 cubic meter... so you can divide by 1,000,000

0.0000113/cubic meter

Quote:

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Originally Posted by oneguyinohio

I assume the 8.6/cm is in terms of cubic centimeters?)

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This assumption would be false. The original post stated "density" but was referring to mass/LENGTH not volume.