promotion image of download ymail app
Promoted

On a piece of graph paper, create an amplitude vs. time graph of a sine wave with an amplitude of 5 Pa and a period T = .03 sec.?

On a piece of graph paper, create an amplitude vs. time graph of a sine wave with an amplitude of 5 Pa and a period T = .03 sec.

What is the frequency of this wave?

Now plot the same wave on a pressure vs. distance graph. Assume that c = 344 m/s.

If the speed of sound were higher, what effect would it have on wavelength? How about period?

Make an image file of your paperwork using either a scanner or a digital camera. You can use a phone camera with a resolution of at least 2 megapixels. Attach the image file(s) to your assignment post.

3 Answers

Relevance
  • NCS
    Lv 7
    1 month ago

    a) y = 5*sin(2π*t/0.3)

    is graphed here:

    https://www.wolframalpha.com/input/?i=plot+y%3D5si...

    b) frequency f = 1/T = 33 Hz

    c) x = v*t = 344t

    wavelength L = v / f = 344 / 33 = 10.3 m

    y = 5*sin(2πx/wavelength) = 5*sin(2πx/10.3) = 5*sin(0.609x)

    is graphed here:

    https://www.wolframalpha.com/input/?i=plot+y%3D5si...

    The problem states you must draw these graphs on graph paper and submit digital images of your work.

    If you find this helpful, please select Favorite Answer. You get points too!

    • Commenter avatarLog in to reply to the answers
  • 1 month ago

    What is the frequency of this wave? 

     f = 1/T = 100/3 =  33 1/3Hz

    Now plot the same wave on a pressure vs. distance graph. Assume that c = 344 m/s: Distance = 344*t so each complete cycle has length 10.32 meters

    If the speed of sound were higher, what effect would it have on wavelength? -----> λ = v/f so λ would be longer

    How about the period T? -----> T = 1/f = λ/v so T would be fewer seconds

    .

    • Commenter avatarLog in to reply to the answers
  • Anonymous
    1 month ago
    • Commenter avatarLog in to reply to the answers
Still have questions? Get answers by asking now.