YumYum247
  • YumYum247
8
Physics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
YumYum247
  • YumYum247
|dw:1436213647775:dw|
YumYum247
  • YumYum247
@Astrophysics do i just add 1 and bring the square eqal to the equilibrium point
YumYum247
  • YumYum247
?!?!?!?

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YumYum247
  • YumYum247
|dw:1436213934284:dw|
Astrophysics
  • Astrophysics
\(\color{blue}{\text{Originally Posted by}}\) @YumYum247 @Astrophysics do i just add 1 and bring the square eqal to the equilibrium point \(\color{blue}{\text{End of Quote}}\) Can you elaborate on this? Also what kind of interference is caused?
YumYum247
  • YumYum247
this type of interference is called destructive interference!!!
Astrophysics
  • Astrophysics
So if it is a destructive interference, the displacement must be 0 right?
Astrophysics
  • Astrophysics
What is your picture and what does it represent
YumYum247
  • YumYum247
by adding 1 i mean, when a crest and a trough head on collide with each other in this case when the triangle wave interferes with the rectangle wave, their wavelength would cancel out each other.... and the remaining crest/trough wold remain...in this case triangle
YumYum247
  • YumYum247
sorry i mean amplitude.
YumYum247
  • YumYum247
meant...-__-
YumYum247
  • YumYum247
because each amplitude is pulling on each other, the positive with negative and in this process they both reach the equilibrium point where none of them have any amplitude...
Astrophysics
  • Astrophysics
I'm not really sure, do they have the same amplitude?
YumYum247
  • YumYum247
similar to when when draw two NODES on a sine wave, when they interfere with each other, the way produces no sound at the equilibrium
Astrophysics
  • Astrophysics
Can you take an image of the question and post it
YumYum247
  • YumYum247
|dw:1436214505980:dw|
YumYum247
  • YumYum247
ok please wait....
YumYum247
  • YumYum247
1 Attachment
Astrophysics
  • Astrophysics
|dw:1436247128800:dw| so this is what we have initially
YumYum247
  • YumYum247
there are normally three scenarios, when two waves collide with each other , they produce supercrest....when two trough collide with each other they produce, supercrests and when two waves are identical in sizes, the resultant displacement is 0.
YumYum247
  • YumYum247
yes!!!
Astrophysics
  • Astrophysics
|dw:1436247232364:dw| so we note it's a destructive interference as they are going in the same direction, so we have to subtract them
YumYum247
  • YumYum247
yes !!
YumYum247
  • YumYum247
wait.......
YumYum247
  • YumYum247
add them
Astrophysics
  • Astrophysics
opposite*
Astrophysics
  • Astrophysics
sorry I mean opposite directions
YumYum247
  • YumYum247
your suppose to add the amplitude....i understand what your saying , since the rectangle is under the equilibrium point, so we have to subtract them.....but no, they are going to produce a height...
YumYum247
  • YumYum247
your rule only apples when the when the two shapes are merely identical....
YumYum247
  • YumYum247
you add them or subtract them, doesn't matter....cuz 1 + (-1) = 0 oe 1-1 = 0
YumYum247
  • YumYum247
i think since a rectangle is a half triangle, so when they collide with each other, the difference subtract out and the remaining trianlge stays...like i drew earlier...
YumYum247
  • YumYum247
|dw:1436215347405:dw|
Astrophysics
  • Astrophysics
Yup, you got the right thinking, one sec
YumYum247
  • YumYum247
because more mass is travelling in the opposite direction so when they collide with each other, amplitudes cancel out each other and the rest remains!!
YumYum247
  • YumYum247
Thank you infinite man!!! I Love you, i trlly do LOVE you, for helping me every day!!! :")
YumYum247
  • YumYum247
HAHAHAHA.....stay cute!!! :")
Astrophysics
  • Astrophysics
I'm still thinking about this problem, I'm not entirely sure it's 0, one sec.
YumYum247
  • YumYum247
|dw:1436215907399:dw|
YumYum247
  • YumYum247
Since i can't post another question while the previous one is still open, i'm just gunna ask you here... can you subtract lower frequency from higher frequency????? It says "Tuning fork 1(256Hz) is sounded with tuning fork 2 (255 Hz). What is the frequency?!?!?!?! Fb = |F2-F1| Fb = | 255 - 256| Gb = -1 Hz?!?!?!?!? Does it make nay sense?!?!!??
YumYum247
  • YumYum247
it says, if the freqency happens to be negative, yo just drop the sings and switch the sings???? is that true..????
Astrophysics
  • Astrophysics
I'm not entirely sure about your first question, I have forgotten a lot about superposition of waves, so I'll have to do some reading but when the pulses overlap the wave function is the sum of the different waves, and when the crests of the two align, the amplitude the difference between the individual amplitudes. For your second question, notice there's a reason we use absolute value signs :)
YumYum247
  • YumYum247
so the frequency is always positive? o_O
YumYum247
  • YumYum247
but when you have two frequencies that turn out to be negative, is that ok...never heard of a negative freqency??
Astrophysics
  • Astrophysics
The formula for beat is \[f_{beat} = f_a - f_b\] this is the beat frequency fa is the higher frequency
YumYum247
  • YumYum247
yes that's what i'm using right now, but when i plugin the given values i get a negative frequency.
YumYum247
  • YumYum247
It says "Tuning fork 1(256Hz) is sounded with tuning fork 2 (255 Hz). What is the frequency?!?!?!?! Fb = |F2-F1| Fb = | 255 - 256| Fb = -1 Hz?!?!?!?!?
YumYum247
  • YumYum247
255 - 256 = -1? o_O
Astrophysics
  • Astrophysics
Like I said, fa represents the higher frequency
YumYum247
  • YumYum247
i don't get it???? 8"(
YumYum247
  • YumYum247
yes but does a negative frequency make sense???
YumYum247
  • YumYum247
oh so....i got it....
YumYum247
  • YumYum247
so it doesn't matter what values are given to you, you plug-in the higher and subtract with lower......
Astrophysics
  • Astrophysics
Well, it doesn't matter, because we're using absolute value, that means all negative values turn positive so you're doing it right, you just have to notice it will still be positive.
Astrophysics
  • Astrophysics
|-12| = 12, |-100000| = 100000
YumYum247
  • YumYum247
oh, i didn't know that....Thanks MAN!!! OMG i'm crying here 8") Happy TEARS!!!
Astrophysics
  • Astrophysics
Haha :)
YumYum247
  • YumYum247
again thank you!!!
Astrophysics
  • Astrophysics
Np ^.^

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