• Oct 6th 2010, 11:42 PM
drynet
i need to know how much meter is in 900 kg of wire 2.2 mm thick

Thank you
• Oct 7th 2010, 12:06 AM
Barry
Quote:

Originally Posted by drynet
i need to know how much meter is in 900 kg of wire 2.2 mm thick

Thank you

We need to know the density of the material the wire is made from. If the length is l, the volume is l x the cross section (use pi r squared).

Knowing the density, you can then have an equation in l, using density = weight divided by volume.
• Oct 7th 2010, 12:21 AM
drynet
i was the worst one in math class. just didn't have it in my brain,
if the wire made of stainless steel 2.2. mm thick can you calculate for me the length
• Oct 7th 2010, 03:26 AM
mr fantastic
Quote:

Originally Posted by drynet
i was the worst one in math class. just didn't have it in my brain,
if the wire made of stainless steel 2.2. mm thick can you calculate for me the length

Post #2 tells you what to do. In particular, it tells you that the density is required before the calculation can be done.

Get the density and do what post #2 says. If you are stuck, show all your work and say where you are stuck.
• Oct 7th 2010, 04:16 AM
drynet
lol. if i knew how to get the density i think i could be Einstein

anyway thanks much for trying to help
• Oct 7th 2010, 04:40 AM
Barry
Quote:

Originally Posted by drynet
lol. if i knew how to get the density i think i could be Einstein

anyway thanks much for trying to help

Here you go, Metals and Alloys - Densities

Let us know if you need help with teh calculation, but have a go yourself first, eh?