Ryansmidt2020 Ryansmidt2020
  • 27-09-2017
  • Physics
contestada

how can you find out whether copper is harder of softer than the plastic used in a plastic cup

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nathanlovesterr
nathanlovesterr nathanlovesterr
  • 27-09-2017
One way is to compare the hardness of the two materials is to see which can scratch eachother. Hope this helps comrade.
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