YumYum247
  • YumYum247
yelp!!!!!!!!!
Physics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
YumYum247
  • YumYum247
@dan815 could you plz give me a quick tuition on this topic, i'm really struggling here :(
YumYum247
  • YumYum247
@abb0t can you please help me????
YumYum247
  • YumYum247
ok i need to learn from the ABC for the concept!!!

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YumYum247
  • YumYum247
ok so i know that when two waves interfere with each other they produce either, constructive waves if the waves are over the equilibrim or destructive waves if under the equilibrium.
nincompoop
  • nincompoop
partial too
YumYum247
  • YumYum247
the only thing i'm struggling to understand is that fact that how do i know what shape the two waves will produce when collide with each other....like how do i do my calculations??
nincompoop
  • nincompoop
depending how the waves interacted and waves can vary in energy too
YumYum247
  • YumYum247
there is no concept of energy here, just the types of collisions and what shape it'll produce and in what direction!!!
nincompoop
  • nincompoop
but not all waves are the same nor collide in two manners only
YumYum247
  • YumYum247
but what is for sure is that fact that there are only two options given to me so therefore all the questions are related to either constructive or destructive waves.....btw how do i calculate the resultant displacement of the two waves...
YumYum247
  • YumYum247
could you please do a quick drawing of at least one of the examples?!?!!??!
YumYum247
  • YumYum247
any idea????????????????
YumYum247
  • YumYum247
@peachpi please help me
anonymous
  • anonymous
I know this is generally more complex, but do they maybe just want you to add/subtract here?
anonymous
  • anonymous
http://www.physicsclassroom.com/class/waves/Lesson-3/Interference-of-Waves superposition drawing near bottom
YumYum247
  • YumYum247
yes but since these are "shapes", i'm struggling to understand how do i calculate the resultant displacement. i know the first one is construction and the second one is neither construction or destruction, i'll be a wave since crest and trough cancel out each other.
dan815
  • dan815
do you still need help?
YumYum247
  • YumYum247
yus please!!
dan815
  • dan815
is it that same picture up at the top
YumYum247
  • YumYum247
yes the picture at the top is the qestion, how do i calculate the resultant displacement in figure 1.
YumYum247
  • YumYum247
i know when two waves interact with each other, the form a superposition where the crest of both waves are combined but how do i put that into a mathematical form?!?!?!?!
dan815
  • dan815
okay now linear Superposition principle can be summarized byt this equation f(x+y)=f(x)+f(y) we say such an equation follows the principle of Lin sup pos
YumYum247
  • YumYum247
can you please just do one question in drawing?!?!?!!? i'll do the rest.
dan815
  • dan815
um okay so its not exactly the crests that are combines its all the heights everywhere
YumYum247
  • YumYum247
interesting please go on!!!
dan815
  • dan815
|dw:1436150952876:dw|
YumYum247
  • YumYum247
in this case it'll be zero since A = highest - lowest /2
dan815
  • dan815
|dw:1436151013791:dw|
YumYum247
  • YumYum247
how tho?????? :O
dan815
  • dan815
okay what we do is look at every x values and add the 2 heights there
YumYum247
  • YumYum247
ok so do we come up with our own numbers here to calculate eveything
dan815
  • dan815
|dw:1436151217242:dw|
YumYum247
  • YumYum247
i thought crest would cancel out trough and the remaining (rectangle) would continue to move in the right direction.
dan815
  • dan815
brb
dan815
  • dan815
ok back
YumYum247
  • YumYum247
Awwwnnnn!!!! |dw:1436162165903:dw|
dan815
  • dan815
how come yours is different from the picture
YumYum247
  • YumYum247
ok assume that the rectangle is touching the sin wave...sorry my bad.
dan815
  • dan815
|dw:1436151592824:dw|
dan815
  • dan815
we add 1 to everywhere on that wave
YumYum247
  • YumYum247
ok so to do my calculations, do i just make up my own numbers, i mean height
dan815
  • dan815
ill draw on the pic
YumYum247
  • YumYum247
ok please slow down for a sec.
dan815
  • dan815
http://prntscr.com/7pad48
YumYum247
  • YumYum247
please answer my questions before you proceed with the qestion.....i want to clearfy everything first.
dan815
  • dan815
ok what
YumYum247
  • YumYum247
so to do all the calclations, do i make up my own numbers, i mean when i draw those diagrams on the graph, to calculate the dispalcement???
dan815
  • dan815
well they gave u only pictures so answer with a picture
YumYum247
  • YumYum247
and please tell me the main rule/ recipe
YumYum247
  • YumYum247
but the picture is not on scale.
dan815
  • dan815
so
YumYum247
  • YumYum247
ok so that means we don't need to draw it on the graph paper????
dan815
  • dan815
i dont know
YumYum247
  • YumYum247
can you solce without the need of graph paper????
YumYum247
  • YumYum247
solve
dan815
  • dan815
okay main thing is the form is this f(x)= k + k*sin(x)
YumYum247
  • YumYum247
ok
dan815
  • dan815
you are adding to like a sin(x) looking wave
dan815
  • dan815
its not really a sine wave, just making that up
YumYum247
  • YumYum247
ok so how do we utilize the equation to find the displaceent
YumYum247
  • YumYum247
@dan815 ok so i add 1 and then what?
dan815
  • dan815
hi
YumYum247
  • YumYum247
hi :)
dan815
  • dan815
lol
dan815
  • dan815
lets start over
YumYum247
  • YumYum247
please!!!
YumYum247
  • YumYum247
:)
dan815
  • dan815
|dw:1436152421672:dw|
YumYum247
  • YumYum247
ok.
dan815
  • dan815
|dw:1436152449162:dw|
YumYum247
  • YumYum247
ok i see.
dan815
  • dan815
|dw:1436152521293:dw|
YumYum247
  • YumYum247
but how do you know how high is that???? since there are no numbers given
dan815
  • dan815
we dont
YumYum247
  • YumYum247
ok cool....next!!!
YumYum247
  • YumYum247
ok so you brought everything on the positive side of the equilibrium....nice!!
YumYum247
  • YumYum247
by adding 1
dan815
  • dan815
there are no numbers
YumYum247
  • YumYum247
ok i see.
YumYum247
  • YumYum247
ok what's next.
dan815
  • dan815
u tell me
YumYum247
  • YumYum247
honestly if i knew i'dn't be here. but give me some time to take a guess!!!
YumYum247
  • YumYum247
you add crest of both waves!!!
dan815
  • dan815
the question is done
YumYum247
  • YumYum247
but the question asks me to "determine the resultant wave" so what do i say?!?!?!?
dan815
  • dan815
|dw:1436152891797:dw|
YumYum247
  • YumYum247
btw how would the final wave look like if we're to actually draw the resultant wave!!
YumYum247
  • YumYum247
what happened to the green magenta rectangle, weren't you suppose to add that height as well.
YumYum247
  • YumYum247
because the rule says, when two waves collide, they make constructive wave!!!
dan815
  • dan815
|dw:1436153051159:dw|
YumYum247
  • YumYum247
OMG i kinda understood what you did there.....!!!
YumYum247
  • YumYum247
ok i got it......!!!
YumYum247
  • YumYum247
ok so what would happen to the first one?!???!
YumYum247
  • YumYum247
since both are on the positive side of the equilibrium......do you just stack the inner box on the outer box?!?!?!?! yes i think SO
YumYum247
  • YumYum247
@dan815 please check if i did that right?!?!?!?
dan815
  • dan815
ill give u a problem do it to the best of your ability
YumYum247
  • YumYum247
so for the first question do you just stack the inner black box on top of the dotted box?!?!?!
dan815
  • dan815
|dw:1436153397371:dw|
dan815
  • dan815
what is the result of these 2?
YumYum247
  • YumYum247
wait is that a V or a triangle?!?!?!?
dan815
  • dan815
okay try another one
dan815
  • dan815
|dw:1436153559275:dw|
dan815
  • dan815
|dw:1436153620648:dw|
dan815
  • dan815
|dw:1436153640721:dw|
YumYum247
  • YumYum247
hold on damn it... let me think :"D LOL
YumYum247
  • YumYum247
ok so for this, you add 1 to the "U" thing to create a constructive wave, so i'll be on top of that weird figure.|dw:1436164542171:dw|
YumYum247
  • YumYum247
|dw:1436164670586:dw| you add 1
YumYum247
  • YumYum247
|dw:1436164695260:dw|you add 1 LOL
YumYum247
  • YumYum247
|dw:1436164718280:dw|you add 1
YumYum247
  • YumYum247
@dan815 All done!!!! :"D
YumYum247
  • YumYum247
can't believe i spent an entire day on this silly concept!!! Thanks you and Love you to death for helping me out. GOD BLESS YOU.

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