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  1. ...extraneous materials like chemicals, bacteria inflection or radiation. (污染, 弄臟, 傳染 ) Contaminate is used with these ...

    分類:社會及文化 > 語言 2013年07月22日

  2. ... ionizing (for such reason, they are called "non-inizing radiation). It is generally true that higher energy photons (which...

  3. ...quot;solar wind", is the sunThe aurora borealisA continuous radiation energy of the universe, it is composed of electrons and ...

  4. ...quot;走天下XD 只係"kinetic theory"比較複雜 至於mechanics同radiation呢, 都唔算難....好啦其實physics入面真係得"電磁學"係比較難...

  5. (a) Since the radiation and particles coming out from the core are travelling...

  6. α or β particles consitute "radiation" because they are moving at high speed. It is the kinetic...

  7. ...when it is placed at Q. (ii) It is the background radiation (本底輻射) (iii) The source emits beta particles and gamma...

  8. ...effect is due to difference in ionization power of the the two types of radiation. 17. The answer is option D. 20. Let m be the mass of...

  9. I suppose you refer to ionizing radiation, such as x- or gamma rays which have strong penetration through matter. Be...

  10. 1. The two wrods "infrared" and "infra-red" are the same. But the word "infrared" is most commonly used. 2. It is because ...