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Posers and Puzzles

Posers and Puzzles

  1. 12 Aug '06 22:29 / 1 edit
    I have some questions to ask you guys.

    There is a balloon with a radius of 45cm.
    There is a pump that fills at a rate of 27.3L/s.
    How long will it take to fill up the balloon (answer in min plz)?

    For some reason I got around 14 min where did i go wrong?
  2. 12 Aug '06 22:35
    Homework?
  3. Standard member XanthosNZ
    Cancerous Bus Crash
    12 Aug '06 22:49 / 1 edit
    41.9 seconds
  4. 12 Aug '06 22:51
    Yep
  5. 12 Aug '06 22:52
    lets try R 45m?
  6. Subscriber AThousandYoung
    Proud Boys Beware
    12 Aug '06 23:14 / 1 edit
    Originally posted by Knight Square
    I have some questions to ask you guys.

    There is a balloon with a radius of 45cm.
    There is a pump that fills at a rate of 27.3L/s.
    How long will it take to fill up the balloon (answer in min plz)?

    For some reason I got around 14 min where did i go wrong?
    Volume of a sphere: (4/3)pi*r^3

    You get cm^3 = mL.

    Divide the mL by 1000 (or multiply the pump speed by 1000) and the units will match. Now divide the volume by the pump's rate.

    You get seconds. Now divide by 60 to get minutes.
  7. 12 Aug '06 23:15
    Did that,need Answer as well
    I dont know if the figure are correct
  8. 12 Aug '06 23:28
    Originally posted by Knight Square
    Yep
    I think that when asking for help with homework you should show some of your own work and point out where you are having difficulty. Being handed the answer on a plate isn't going to help you pass your exams.
  9. Standard member XanthosNZ
    Cancerous Bus Crash
    12 Aug '06 23:29
    Originally posted by ThudanBlunder
    I think that when asking for help with homework you should show some of your own work and point out where you are having difficulty. Being handed the answer on a plate isn't going to help you pass your exams.
    And he still doesn't know where he went wrong.
  10. 12 Aug '06 23:39
    Okay here are the real figures.
    R 45 cm
    pump 27.3/min

    4/3*pi*.45^3=0.381703507 (figure in m^3)
    coversation to L (from m^3)= 1000*0.381703507
    = 381.7035074
    rate= 381.7035074/27.3
    = 13.98181346min
    rounds to about 14 min.
    Answer is needed in min anyway.

    Am I correct or wrong.
  11. Standard member XanthosNZ
    Cancerous Bus Crash
    12 Aug '06 23:48
    You use an incorrect formula and you can't decide whether your rate is per second or per minute.

    Maybe you should leave the number stuff to other people. You are clearly not cutout to do math. Or physics.
  12. 13 Aug '06 00:10 / 1 edit
    Noooooooooo. I gave you the wrong info.
    its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    What form are you XanthousNZ?
  13. Standard member XanthosNZ
    Cancerous Bus Crash
    13 Aug '06 00:31
    Originally posted by Knight Square
    Noooooooooo. I gave you the wrong info.
    its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    What form are you XanthousNZ?
    Forms are obsolete.
  14. 13 Aug '06 00:33 / 1 edit
    Okay then they are then.
    Play any other sports? Rugby, Cricket?
  15. 13 Aug '06 00:54
    Originally posted by Knight Square
    Okay then they are then.
    Play any other sports? Rugby, Cricket?
    play any good sports? football? basketball?