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  1. I

    Identify problems with experiment question...

    im hoping not coz one only concerns the power supply while the other one mainly deals with the brushes hmm i shouldnt have put something so ambiguous
  2. I

    multiple choice

    6 is B...think about it when you throw something out your car window while travelling at the speed limit (which we all do) it never moves straight down it always goes behind us and we never see it moving in a parabola so it must be B
  3. I

    Identify problems with experiment question...

    1) brushes not connected to power supply 2) no power supply present 3) coils not connected to commutator
  4. I

    2003 hsc solutions

    does anyone know where i can get solutions to last yrs hsc paper
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