Posers and Puzzles

Posers and Puzzles

  1. Palmerston North
    Joined
    02 Jun '06
    Moves
    2420
    12 Aug '06 22:291 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. Joined
    21 Jul '06
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    0
    12 Aug '06 22:35
    Homework?
  3. Standard memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
    Moves
    25076
    12 Aug '06 22:491 edit
    41.9 seconds
  4. Palmerston North
    Joined
    02 Jun '06
    Moves
    2420
    12 Aug '06 22:51
    Yep
  5. Palmerston North
    Joined
    02 Jun '06
    Moves
    2420
    12 Aug '06 22:52
    lets try R 45m?
  6. SubscriberAThousandYoung
    HELLO MY NAME IS
    tinyurl.com/znfjyjm
    Joined
    23 Aug '04
    Moves
    24791
    12 Aug '06 23:141 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. Palmerston North
    Joined
    02 Jun '06
    Moves
    2420
    12 Aug '06 23:15
    Did that,need Answer as well
    I dont know if the figure are correct
  8. Joined
    21 Jul '06
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    0
    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 memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
    Moves
    25076
    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. Palmerston North
    Joined
    02 Jun '06
    Moves
    2420
    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 memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
    Moves
    25076
    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. Palmerston North
    Joined
    02 Jun '06
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    2420
    13 Aug '06 00:101 edit
    Noooooooooo. I gave you the wrong info.
    its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    What form are you XanthousNZ?
  13. Standard memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
    Moves
    25076
    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. Palmerston North
    Joined
    02 Jun '06
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    2420
    13 Aug '06 00:331 edit
    Okay then they are then.
    Play any other sports? Rugby, Cricket?
  15. Joined
    06 Jul '06
    Moves
    2926
    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?
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