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anonymous

  • one year ago

Need urgent help, I am stuck on a question: http://snag.gy/jP76g.jpg

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  1. amistre64
    • one year ago
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    how are you stuck?

  2. anonymous
    • one year ago
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    The periods ><. I can see the altitudes.

  3. amistre64
    • one year ago
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    you can see the periods too, define what a period is

  4. amistre64
    • one year ago
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    also, what are you claiming as the altitudes?

  5. anonymous
    • one year ago
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    time, and somewhat it looks like 4.5 on the first but ....idk

  6. amistre64
    • one year ago
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    claiming as **amplitudes ...

  7. anonymous
    • one year ago
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    first one 3, second : 2 right ?

  8. amistre64
    • one year ago
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    time is one way in which we can measure a period period is the shortest length required for a single copy of the wave to form. and 2 is the amplitude of the second, but i disagree with the first.

  9. amistre64
    • one year ago
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    first one, we have a clear pattern, that has a high point at 0,5,10 second one, we have a clear pattern, that has a high point at what are they?

  10. amistre64
    • one year ago
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    i believe the first ones amplitude is sloppy. its assuming that half the range is an amplitude, but thats not accurate.

  11. anonymous
    • one year ago
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    agreed..isn't there a formula to find this the periods..idk

  12. amistre64
    • one year ago
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    not in all cases, its best as a visual.

  13. amistre64
    • one year ago
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    do we agree that the pattern repeats, and that it is the same from 0 to 5, as it is from 5 to 10?

  14. amistre64
    • one year ago
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    what are the intervals in the second one that shows us a repetition of the waves pattern?

  15. anonymous
    • one year ago
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    Intervals were not given nor was I told to solve for them so have have no clue >< sorry. And I agree.

  16. amistre64
    • one year ago
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    intervals ARE given, thats right there on the graphs.

  17. anonymous
    • one year ago
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    Oh my bad, I was thinking you mean shifts

  18. anonymous
    • one year ago
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    Pi/2, pi, 3pi/2, 2pi, 5pi

  19. anonymous
    • one year ago
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    *5pi/2

  20. amistre64
    • one year ago
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    the first one ... it repeats itself in what shortest distance?

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  21. anonymous
    • one year ago
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    5pi ??

  22. amistre64
    • one year ago
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    there are no pis in there, but yeah, 0 to 5 is a length of 5 and for the second?

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  23. amistre64
    • one year ago
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    these are simple only because they start a cycle at 0, sometmes they wont be so nice.

  24. anonymous
    • one year ago
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    ah okay(I'm just going off that formula for period), and second= pi/2?, and Ik ><

  25. amistre64
    • one year ago
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    pi/2 is only half way ... the graph is not 'the same' on the interval 0 to pi.2 as it is from pi/2 to pi so we CANT have a period of pi/2 becasue the pattern is NOT repeating afterwards.

  26. anonymous
    • one year ago
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    Oh okay so it would be pi to make it full

  27. amistre64
    • one year ago
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    yes, it makes a repetition within a period of pi. if a faucet is dripping once every 3 seconds, whats the period? if a clown is falling once every 4 minutes, whats the period? if a dog is barking once every second, whats the period? if the tides comes in once every 9 hours, whats the period? a period is the shortest interval it takes for a phenomenea to start repeating itself all over again.

  28. anonymous
    • one year ago
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    oh okay and 3, 4, 1, 9 ?

  29. amistre64
    • one year ago
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    trig function have nice formulas, other things do not

  30. amistre64
    • one year ago
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    lol, yeah those would be the periods of them

  31. anonymous
    • one year ago
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    Yay I learned Periods and altitudes! Thank you ^^ kindly.

  32. amistre64
    • one year ago
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    amplitudes .... so whats our solutions?

  33. anonymous
    • one year ago
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    lol thx for the correction and 1. a:3 ,p:5 2.a:2, p: pi

  34. amistre64
    • one year ago
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    your amplitude on the first is mistaken. -2 to 3 is a distance of 5, and assuming they are going with range/2 ... 5/2 is not 3

  35. amistre64
    • one year ago
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    so the last option on both seems fair to me

  36. anonymous
    • one year ago
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    ah, okay Gotcha . Thank you you kindly for teaching me and your patience .

  37. amistre64
    • one year ago
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    good luck :)

  38. anonymous
    • one year ago
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    Thx ^^

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