A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

YumYum247

  • one year ago

5

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so in 0.10 seconds the wave generator goes through 3 cycles; the frequency is \(f=\frac{N}{\Delta t}=30\text{ Hz}\)

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    in one single second, there will be ten times as many waves produced (30)

  3. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    This is how i did it... Given: # of loops = 3, d = 4.5m, t = 0.10sec. required: F = ? Solution : 3 loops = 3/4 λ = 3/4 λ X 3 = 4.5 λ V = d/t V = 4.5 / 0.10sec V = 45m/sec Frequency = V = f X λ V = 45m/sec / 4.5 λ V = 10 Hz Therefore the frequency is 10 Hz

  4. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the question said "LOOPS" not cycles

  5. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 complete cycle = 4 loops

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    eh, the language is ambiguous; a complete loop would be half a cycle, anyways, so in actuality that would represent one-and-a-half cycles in 0.1 seconds and so a corresponding 15 cycles in 1 second, or \(f=15\text{ Hz}\)

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you define carefully what you mean by 'loop'? |dw:1436322714361:dw|

  8. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and what happened to the distance....4.5m?????????

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the distance is not needed to determine the frequency here since you told us that it generates three loops in a certain time span directly

  10. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i don't buy it, but thanks for the help tho.......:")

  11. perl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you want to use that equation directly speed = wavelength * frequency

  12. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but i have to figure out the wavelength first right..............i've already done the question above. please check y work.

  13. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can someone please check my work?????????????????????????????????????????????????????

  14. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I'm thinking that a loop is a full period. Though I'm just going from unit circle imagery :) |dw:1436323530849:dw|

  15. perl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I agree, a complete loop sounds like 1 up and down motion.

  16. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    OMg.....1 loop is 1/4 of a full cycle...here|dw:1436334439572:dw|

  17. perl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    v = lambda * f v= 45 m/sec lambda= (4.5 / 3) = 1.5 m 45 = (1.5) * f 45/1.5= 30 Hz

  18. perl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Does your book define a loop?

  19. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    https://www.youtube.com/watch?v=1pZqlHgHzxI

  20. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    start at 9:21

  21. perl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the youtube is defining 1 loop = 1/2 wavelength

  22. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh that's right, sorry i made a mistake, i just looked at my notes LOL

  23. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    OMG O_O!

  24. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i guess i'll jst re do the whole qeston...

  25. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    huh, I've never seen "loop" notation before.. best of luck

  26. perl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    but the term 'complete loop' seems to be suggestive

  27. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no but i plugged in the right value there....since there are three loops = 3/4Lambda

  28. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    or 2/2 + 1/2lambda

  29. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    for anyone else curious about "loops", refer to http://www.physicsclassroom.com/class/waves/Lesson-4/Mathematics-of-Standing-Waves Its only really used when describing standing waves such as this, as the string itself alternates between the upper and lower position between two antinodes

  30. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    indeed

  31. YumYum247
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @dan815 hey please check my work at the top!!!

  32. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.