Recent content by Maisoon Al-mahrouqi

  1. M

    What's the speed of the bicycle?

    A man stands on top of a slope and starts to cycle DOWNWARDS. His MASS (with the bicycle) is 64 kg. The efficiency that converted the gravitational potential energy (energy in)-Eg- to kinetic energy (energy out) -Ek- is equal to 48%. Calculate the speed of the bicycle when it is 12...
  2. M

    I'd like to study cosmology. Should I study physics first then move to cosmology?

    What universities do you recommend for studying cosmology? Do I have to study physics first? Would it be better if I do? Simple/straightforward answers please; I'm only 15.
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