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  1. S

    Tricky projectile motion question, Thanks

  2. S

    couple question thanks

    can comeone explain pls, the answer is 100kN
  3. S

    box on inclined plane with friction Q, thanks

  4. S

    acceleration Q, thanks

  5. S

    help needed with direction of torque, Thanks

    This question is from a HSC test, and I understand the working out for the magnitude of the torque, I dont know why the direction of the torque is into the page. help would be appreciated Thanks
  7. S

    help needed with following question sigma notation question, thanks

  8. S

    Help needed for electromagnetism question

    in the Formula for force on current carrying conductor it reads as: F=BILsinΘ where B is magnetic field strength, I is current and L is length of wire. does it matter what angle theta is if the force is into or out of the page, as in will the force be the same on the wire if it as at any angle...
  9. S

    need help with simple function question

    if f'(x)=4x-3 and f(2)=7 find f(4) thank you
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