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RANE

"why is not possible to predict when any particular radioactive nucleus will decay?"

  • 10 months ago
  • 10 months ago

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  1. RANE
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    @UnkleRhaukus @amistre64 @ParthKohli

    • 10 months ago
  2. RANE
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    @thomaster

    • 10 months ago
  3. RANE
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    @ganeshie8 @dan815

    • 10 months ago
  4. RANE
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    i didnt form this question,its in my phys report, and i dont know the answer to it

    • 10 months ago
  5. UnkleRhaukus
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    Perhaps there is some missing context

    • 10 months ago
  6. RANE
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    the question asked is "why is not possible to predict when any particular radioactive nucleus will decay?"

    • 10 months ago
  7. UnkleRhaukus
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    Ah, that is a bit different.

    • 10 months ago
  8. RANE
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    u there?

    • 10 months ago
  9. UnkleRhaukus
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    Radioactive decay is probabilistic in nature. If you have a large number of radionuclides you can make probabilistic predictions about the group- in one half-life about half of the nuclides will have decayed. But you cannot tell when any individual will decay,

    • 10 months ago
  10. RANE
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    y cant u tell when any individual will decay?

    • 10 months ago
  11. UnkleRhaukus
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    because they dont all decay at the same time

    • 10 months ago
  12. dan815
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    so you want to know why a nuclues never decays?

    • 10 months ago
  13. RANE
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    "why is not possible to predict when any particular radioactive nucleus will decay?"

    • 10 months ago
  14. thomaster
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    because it's random when they will decay?

    • 10 months ago
  15. UnkleRhaukus
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    Consider; i have ten coins, i flip them all over, if a tail that coin is removed, if a head the coin can be re flipped, every minute i re-flip all the coins that were heads last time, . You could do some statical analysis and predict that the game will last less then 10 minutes - most of the time. however sometimes, all coins will be tails on the first flip, and sometimes, all the coins continue to flip heads and the game never ends

    • 10 months ago
  16. UnkleRhaukus
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    Making predictions about the coins game is similar to making predictions about the radionuclides, The data used to make the predictions is probabilistic data. [this analysis is very different to trying to determine the behaviour of a single coin, (that would require knowing trajectories, velocities and dynamics.)(we dont have this data)]

    • 10 months ago
  17. RANE
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    thank u so much

    • 10 months ago
  18. UnkleRhaukus
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    did you try the game, do you have ten coins,? i took me exactly ten flips, but that was just lucky

    • 10 months ago
  19. RANE
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    um.. no, i didnt try it becoz i'm busy with other q's of the report bt i will do it at sometime

    • 10 months ago
  20. amistre64
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    as far as i can recall, the particles in question are soo small that any attempt to measure them affects their situation.

    • 10 months ago
  21. RANE
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    wht????

    • 10 months ago
  22. RANE
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    this time can u pls explain using the example of dice

    • 10 months ago
  23. UnkleRhaukus
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    do you have some dice to roll?

    • 10 months ago
  24. RANE
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    yes

    • 10 months ago
  25. RANE
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    can u ist explain the q then give example

    • 10 months ago
  26. RANE
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    "why is not possible to predict when any particular radioactive nucleus will decay?"

    • 10 months ago
  27. UnkleRhaukus
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    ok , well im gonna roll eight dice, and if one of them lands on a 1, it take it aside, every thing else, i re-roll , this repeats. how long does the game last?

    • 10 months ago
  28. RANE
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    can u pls explain ist so we have a clue abt whts happening

    • 10 months ago
  29. RANE
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    explain the q' then examp

    • 10 months ago
  30. RANE
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    r u there?

    • 10 months ago
  31. UnkleRhaukus
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    i am hear, but i am not sure what you are asking me

    • 10 months ago
  32. GGfreak
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    Thnkx for the help don't worry bout it

    • 10 months ago
  33. gleem
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    A radioactive nucleus is often modeled as a hollow sphere in which there is a small marble. The hollow sphere has a small hole but large enough for the marble to pass through. The marble is considered to be bouncing around in the sphere until after a time it passes through the hole and escapes. consider a piggy bank with a coin that you are trying to shake out. Is it possible to predict when the coin will come out ie. how many shakes will it take to get the coin out? I think not. You can estimate the average number shakes to get the coin out of say 10000 bank by shaking them until a coin comes out and averaging the number of shakes that released a coin. that way if you came across another set of similar bank you could estimate how long it will take to release all the coins. So goes the coin in the bank so goes the radioactive nucleus.

    • 10 months ago
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