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Homework Help: Physics 11 is so confusing

  1. Sep 14, 2004 #1
    Physics 11 is so confusing ....

    A Person,resting in a boat, notices that 16 waves pass the boat every 38 seconds ... HOw many waves would pass the boat in 55 seconds?
     
  2. jcsd
  3. Sep 14, 2004 #2

    Tide

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    A boy does 0 homework problems in 16 minutes. How many homework problems will he complete in 1 week? :-)
     
  4. Sep 14, 2004 #3
    in order to answer that you need to find howmany waves in a second (16/38) which equals to *.42* meanning there will be .42 waves passing every second. then you just multiply it by 55 (.42*55) which equals to 23.2 (23.15789473684.........
     
  5. Sep 17, 2004 #4

    Gza

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    He better hope that one isn't on the test! :smile:
     
  6. Sep 17, 2004 #5
    hmmm the boy does 0 homework in one week, because 7 days in one week and 24 hours in one day so: 24*7=168, then 60 minutes in an hour, 60*168=10080, and he does 0 in 16 minutes so, 10080/16=630, then 630*0=0, thats it. :smile:
     
  7. Sep 17, 2004 #6

    Tide

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    Yeah, but what if his rate grows exponentially? :wink:
     
  8. Sep 17, 2004 #7
    well that was not part of the problem, it says he does 0 homework in 16 min, so I deduce that he does 0 in 16 min. So it cannot increase exponentially if 0=0. :biggrin:
     
  9. Sep 17, 2004 #8
    okay bottom line, lets stop fooling around. :rolleyes:
     
  10. Sep 18, 2004 #9
    16 waves x waves
    ----------- = ---------------
    38 seconds 55 seconds


    solve this

    you should get
    23.16 waves
     
  11. Sep 18, 2004 #10
    tom thxs for that, but problem was all ready solved. Look above, but thxs for the try. :smile:
     
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