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Posted by on Thursday, March 24, 2011 at 10:34am.

You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1 g of copper and asked to make a wire, using all the metal, with a resistance of 2.0 (ohms). Copper has a density of 8900 kg/m^3.

What length will you choose for your wire?

What diameter will you choose for your wire?

Please help me out. I got 3600 m for the length and .0062mm in diameter. It's wrong but I have no idea what I did wrong. Please help with some details. it would be much appricated!
Thank you in advance!

  • Science - , Thursday, March 24, 2011 at 10:47am

    Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

  • Science - , Thursday, March 24, 2011 at 11:13am

    And ... be sure to read the linked responses to this question. Scroll down a bit and read the posts linked under Related Questions.

  • Roper - , Saturday, November 12, 2011 at 5:30pm

    The length is 3.8m, the diameter is 0.19

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