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  1. C

    HELP PLEASE ! Friction on a slope

    Q) Calculate the amount of work needed HORIZONTALLY to push your dragster up a 10 degree slope for 20m. F is the force to get the dragster to start to move. Sent from my Nexus 6P using Tapatalk
  2. C

    Dimensioning -graphics

    Hey quick question, if I draw an object that is scaled 1:2, do I dimension it with the 1:1 lengths or 1:2 lengths ? Thanks. Sent from my Nexus 6P using Tapatalk
  3. C

    Help with Integration questions

    Hey people, just looking for the process to work these problems out, thank you in advance. Sent from my iPad using Tapatalk
  4. C

    Fusion in stars

    What type of energy (e.g. gravitational) is produced by fusion to balance the inward pull of gravity ?
  5. C

    Zirconium alloy in knee joints

    Hey guys, i was wondering what the advantages were for alloying zirconium to put in artificial knee joints rather than pure zirconium ? Thank you
  6. C

    Preliminary Trigonometry

    Could somebody please post a worked solution to this, the answer is x^2 + y^2 +4y-5=0 Thank you
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