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  1. ... former makes use of fission reactions (splitting of heavy atoms) and the latter uses fusion reaction (combination of light atoms...

  2. ... mass by the mass of the reactant. Since Uranium is much more heavier than hydrogen for over 200 times. So, very likely fusion of hydrogen ...

  3. ...東西when - 時間where - 地方why - 原因who - 人物how - 方法 / 過程how - how many / much / tall /high / heavy ......

  4. ...). This is because of the molecules in water are heavier than those in air. This phenomenon is, in fact, used in sound insulation...

  5. ... mechanically bonded to fiber or fabric surface by resins, therefore heavy shades tend to stiffen fabric--harder hand feel. It is excellent...

  6. ...always true. In fact, air resistance bepends very much on the size, shape and geometry of the object, not on its... of the same material but of different masses, the heavier one have larger volume, and hence larger air...

  7. ...journal "New Scientist" entitled "How much can a human lift?". It reports that the heaviest record is 457.5 kg, achieved by by British weightlifer ...

  8. ...) cause air pollution. 3. Rubbish produces bad smell. 4. Heavy traffice produce much smoke. 5. Power plants produce much smoke. 6. Landfills ...

  9. ...: Advantages: harder, tougher, heavy therefore gives good impact when used as a hammer... into the object), not tough, too light in weight, too ductile, much more expensive Aluminium is almost definitely unsuitable...

  10. 1. E. None of the above. At that moment, they have the same height and same velocity. However, their mass are not the same, so A, B and C are not correct. Mass is the measurement of inertia. Their masses...