lilynguyen3814
lilynguyen3814 lilynguyen3814
  • 04-04-2015
  • Physics
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What would be most useful to help make a simple compass a nonmetal bar,a round metal can,a small iron nail,or a Quartz needle

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Invader12
Invader12 Invader12
  • 04-04-2015
iron nail. the rest of those are not iron or some form of magnetic material.
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Аноним Аноним
  • 05-04-2015
Iron nail is metalic  and the others are not metalic 
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