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  1. B

    Any Tips for Q9 and Q10 in HSC

    Very true - you have to try. Not just 9 and 10 tho...wirte something for every question, a formula, or how you would go about doing it (in english, with words).Best advice I can give though, is look for the clues they give you - "Why is that bit of information important?"..."Why have they out...
  2. B

    need help for 1 SHM!

    "v=+ - root15" perhaps should be v=-root15 as velocity is to the left, which is -ve
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