1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Quiz question...

Discussion in 'Word Games' started by imamartian, 21 Jul 2010.

  1. imamartian

    imamartian

    Joined:
    23 Sep 2007
    Messages:
    8,994
    Thanks Received:
    55
    Location:
    Derbyshire
    Country:
    United Kingdom
    Surely 3g is a state? (not a mobile phone network !!),,, but speed would be 3g per second, and an acceleration would be 3g per second per second?
     
  2. Sponsored Links
  3. ChrisR

    ChrisR

    Joined:
    24 Jul 2003
    Messages:
    23,944
    Thanks Received:
    1,317
    Location:
    London
    Country:
    United Kingdom
    Yes it's the sun :p , then I believe Proxima Centauri.



    g is the acceleration due to gravity, measured in metres per second per second.
    Speed in the same system is metres per second
    so if the speed of light is 3e8 metres per second, and you accelerate at 10 metres per second, per second..., how long...

    ( 3e8 being notation for 3 followed by 8 zeroes)
     
  4. Space cat

    Space cat

    Joined:
    9 Sep 2007
    Messages:
    3,862
    Thanks Received:
    74
    Location:
    Newcastle upon Tyne
    Country:
    United Kingdom
    In theory, at a constant acceleration of 30 m/s/s, you would reach 150,000,000 m/s in 5,000,000 seconds. :) Sadly, your fuel supply would not last that long. :( :( :(
     
  5. imamartian

    imamartian

    Joined:
    23 Sep 2007
    Messages:
    8,994
    Thanks Received:
    55
    Location:
    Derbyshire
    Country:
    United Kingdom
    another question for people to mull over.....

    why do planes always have 2 contrails regardless of whether they have 2 or 4 engines?

    (if you know, then say so, but don't give it away until other bods have guessed..)
     
  6. oompah

    oompah

    Joined:
    18 May 2007
    Messages:
    5,384
    Thanks Received:
    13
    Location:
    Devon
    Country:
    United Kingdom
    I don't know but I won't tell :LOL:
     
  7. wotan

    wotan

    Joined:
    24 Dec 2007
    Messages:
    10,981
    Thanks Received:
    142
    Location:
    Cheshire
    Country:
    United Kingdom
    Me neither :LOL:
     
  8. oompah

    oompah

    Joined:
    18 May 2007
    Messages:
    5,384
    Thanks Received:
    13
    Location:
    Devon
    Country:
    United Kingdom
    Picture clue.
     
  9. Space cat

    Space cat

    Joined:
    9 Sep 2007
    Messages:
    3,862
    Thanks Received:
    74
    Location:
    Newcastle upon Tyne
    Country:
    United Kingdom
    Edit: Oops! I've just read the post properly. :oops: :oops: :oops:

    Answer deleted.
     
  10. Sponsored Links
  11. imamartian

    imamartian

    Joined:
    23 Sep 2007
    Messages:
    8,994
    Thanks Received:
    55
    Location:
    Derbyshire
    Country:
    United Kingdom
    err.. apart from in this scenario !! :evil: :evil:
    :confused:
     
  12. Karinska

    Karinska

    Joined:
    20 Mar 2010
    Messages:
    2,078
    Thanks Received:
    0
    Location:
    Kent
    Country:
    United Kingdom
    Is it because you're flying Ryanair so only 2 of the 4 engines work :eek:
     
  13. imamartian

    imamartian

    Joined:
    23 Sep 2007
    Messages:
    8,994
    Thanks Received:
    55
    Location:
    Derbyshire
    Country:
    United Kingdom
    ha ha... useful for those on here who are afraid of flying !! :eek:
     
  14. Space cat

    Space cat

    Joined:
    9 Sep 2007
    Messages:
    3,862
    Thanks Received:
    74
    Location:
    Newcastle upon Tyne
    Country:
    United Kingdom
    Here's a clue. What do most planes have two of? ;) ;) ;)
     
  15. oompah

    oompah

    Joined:
    18 May 2007
    Messages:
    5,384
    Thanks Received:
    13
    Location:
    Devon
    Country:
    United Kingdom
    Chances they either fly or they don't. :LOL:
     
  16. ChrisR

    ChrisR

    Joined:
    24 Jul 2003
    Messages:
    23,944
    Thanks Received:
    1,317
    Location:
    London
    Country:
    United Kingdom
    ABout a coupleof months. Fuel might last, but humans couldn't stand that acceleration for that long.
    So if we're ever going to go far in the universe, which means travelling at that sort of speed, we're going to have to face it taking a year or more to get up to speed.
     
  17. ChrisR

    ChrisR

    Joined:
    24 Jul 2003
    Messages:
    23,944
    Thanks Received:
    1,317
    Location:
    London
    Country:
    United Kingdom
    DUnno.
    Is it because each wingtip vortice promotes condensation from supersaturated atmosphere?
     

Share This Page