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  1. Energy = KE = ½mV² = ½(500)(√(2GM/r))² = 250(2GM/R) = 500(3.98e14) / (6.37e6) = 3.12e10 J Escape speed V₀ = √(2GM/r) V₀ = √(2gr) (alternate) G = 6.673e-11 Nm²...

    3 Answers · Science & Mathematics · 01/08/2019

  2. .... Haven't you ever heard of the Canadian Space Agency? That's where Canadians have ended up...

    12 Answers · Science & Mathematics · 26/06/2019

  3. ...vacuum was not a problem since he was already wearing his space suit.  And the aerodynamic turbulence was a minor issue in light martian atmosphere...

    4 Answers · Science & Mathematics · 29/01/2020

  4. ...from you. Not all stars have red shift, some even blue meaning the space between us is closing. This only applies to...

    7 Answers · Science & Mathematics · 08/08/2019

  5. ..., along came Einstein, who proposed that mass could bend space-time. This lead to people thinking the universe might not be ...

    5 Answers · Science & Mathematics · 25/12/2019

  6. I don't believe in aliens but, I do believe in imagination. ;-)

    77 Answers · Science & Mathematics · 02/07/2019

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