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RIDDLE

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Everything posted by RIDDLE

  1. Could someone explain the ans in b(i)
  2. how to do question 28-30
  3. I want to ask what is active transport ?
  4. RIDDLE

    Homework

    Could any one send me some physics question about force and motion or Newton 's law?
  5. Hi,everyone I am a HongKonger I study physics in english . Now, I am learning force and motion but I forgot the concept of the normal reaction and weight , my teacher said I have to read the book to learn it again but I think the most important is `how to calculate the force ` I think those concept is useless . I want to ask is it useless for know the concept or good for know it? Also , I want to ask how to study physics effectively . (my English is suck ,there may be many grammar mistake,please forgive me)
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