Aruwin
Member
- Member since
- Jun 10, 2011
- Last active
- Sep 26, 2014
- Total activities
- 0
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Recent contributions
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#Threads
Program for charge simulation method
Hello. Does anyone here know how to write a "charge simulation method" program in C or C++? It's to calculate electric distribution...
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#Threads
bae5acbb-8fca-4a4a-b4fc-a48745ce0641
A.V.RamaniIf P is on the same plane as the ring, the situation is more complex. l becomes a variable. The ring will...
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#Threads
f09dbbe8-04cd-42e5-b3c2-fe1110bd6866
A.V.RamaniDear Aruwin, This is not my area at all. Probably these links may help you. #-Link-Snipped-# #-Link-Snipped-# #-Link-Snipped-# #-...
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#Threads
573b26f5-8222-4aa3-96e4-d5d38a107f1e
A.V.RamaniAruwin, The picture does not open.Here, click on this link. Or copy and paste it. <a href="https://www.flickr.com/photos/98820721@N04/14436573831/ligh...
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#Threads
How to derive the formula of electrical potential in a charged ring
The picture above shows the potential due to ring charge. (you need to right click on the picture box and open...
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#Threads
Need help about charged ring
The picture above shows the potential due to ring charge. (you need to right click on the picture box and open...
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#Threads
Power Consumption (effective power)
Hi, can you please check my answer? By the way, we don't use calculator at all so we don't have to calculate...
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#Threads
8287f2b6-dd4a-4005-80e8-28db26cf9c99
Jeffrey SamuelDo make sure whether the orange coloured small piece of wire which I have circled in the diagram is in correct...
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#Threads
Building PLL circuit with three IC's
Hi, I have to build this PLL circuit and choose any 3 N (integer) of the N-divider. And then I have to...
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#Threads
c084fea9-5189-49c1-8c81-a5f4de0d1945
A.V.RamaniHave you looked at this? <a href="https://en.wikibooks.org/wiki/Control_Systems/Poles_and_Zeros" target="_blank" rel="nofollow noopener noreferrer">Co...
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#Threads
Control system with 4 poles
Can you help me compare these results? They're the simulations of a control system. When we change the poles, (in this case,...
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#Threads
DFT and harmonic amplitude
Harmonic frequency = kf_r = αf_c + βf_r=α(20f_r) + βf_r = (20α+β)f_r. Here, signal frequency f_r =f= ω_r/2π = 50Hz. carrier frequency...
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#Threads
Need help about the Intrinsic carrier density and conductivity.
I have tried again and again but never get the answer! Please help me out here. Given the forbidden band width of...
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#Threads
8c0438dd-4860-445e-9051-50679001cfe0
jeffrey samuelHere this should help A B C F max terms 0 0 0 0 A+B+C 0 0 1 0 A+B+C' 0...
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#Threads
Can someone please help me with this logic circuit problem?
I need step by step explanation and solution to this question please, so I can answer others. In the set of inputs...
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#Threads
f04a28ab-ce1a-4292-a7e5-5db8a88fd44e
ianoopcan't understand the table... can you give the link..There's no link,it's from my lecture pdf file.Can you tell me what a cache...
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#Threads
How to find cache miss and cache hit
Hello there. I recently just learned about determining the memory reference of cache miss and cache hit but I I don't understand...
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#Threads
Question about multiple integration
I have a question about integration. Here I have the answer given by my teacher and my answer. Question: J = ∫∫D...
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#Threads
f51b0fd8-6aae-4870-bade-698e94a624ac
bioramaniThe function can be rewritten as x^4 + y^4 ≤ 2(x - y)^2 and simplified to: x^4 + y^4 ≤ 2(x^2 +y^2)-4xy...
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#Threads
A simple question about extreme values
Hi there. Can you help me solve this,please? Find the extreme values of the function f(x,y) = x^4 + y^4 - 2(x...
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#Threads
Write an MIPS procedure of calculating the n-th term of the Fibonacci sequence F (n)
Someone please help me by showing how to do this. Write an MIPS procedure of calculating the n-th term of the Fibonacci...
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#Threads
electrostatic energy
Someoone please help me with this. How do I find the elctrostatic energy per unit length using these 3 methods: 1. 2....
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#Threads
7e63b27a-0409-4c01-a5e0-f45d7889b03f
Oh, thanks for the file. I have solved both questions already =)
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#Threads
Triple Integration
*Sorry, they're both actually double integrations. There is a typo. How do I integrate these?
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#Threads
General solutions
Someone please show and explain me the solution to this. How to find the general solutions for these differential equations? 1. y'-2y...
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#Threads
T-type cicuit and pi-type circuit
What are the conditions for the T-type cicuit and pi-type circuit to be equivalent? I need to do this by writing out...
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#Threads
symmetrical 3-phase electromotive force
Somebody please,how to find this? Find the sum of the Symmetrical three-phase electromotive force e_a,e_b,e_c. e_a(t) = E_m.sinwt e_b(t) = E_m.sin(wt -...
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#Threads
conversion of base numbers
Somebody please help me with this. I need explanations and working. 85(base 10) 85/8=10.......5 10/8=1.........2 1/8 =0.........1 Answer: 125(base 8) Why doe...
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#Threads
Reading vernier calipers and micrometer
Please check if my answers are correct and tell me if it is correct to give the answers to two decimal places?
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#Threads
75d300da-191e-41c7-843a-84a4d25eca52
Praveen-KumarGodFather to the Rescue! 😀 So, is there anyone who can help me?
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#Threads
32b6148f-d0d0-4415-ba46-96c85ea865e0
Sagar071. differentiate z w.r.t x and then w.r t. y and compare f'(ax+by)... you will get the ans. 2. differentiate z w.r.t...
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#Threads
4567ce68-9e4d-4a8e-8057-966488c072b4
bioramaniI am not quite sure if this is relevant to the question. Consider the sine function: there are infinite number of maxima...
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#Threads
Conditional extreme values
Can there be two maximum points of a #-Link-Snipped-# with 2 variables? For example, this question: Find the extreme values (state whether...
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#Threads
39be7d75-30b5-4838-80c0-c1bc98112129
Praveen-KumarOkay... 😀 And as to why I always post questions on here is because people here explain better than the teachers at...
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#Threads
b54e5cc6-da58-4e0e-9866-373df72846a5
Praveen-KumarBy any chance is this a homework?Nope,not homework. I have never posted any homework on here. If it was homework, I would...
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#Threads
How to find current
I'm still new to this subject. Given that i1(t)= (√2)sin2t[A]. 1.Find current i2(t). 2.Find the effective power(current consumption) in the entire circui...
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#Threads
6b53bca5-fe6f-4ac8-bc80-6ba454013b98
circularsquareThere is an alternative definition of homogeneous function of order n. I.e f(x,y) = (x^n)u(y/x) where u is a function of y/x....
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#Threads
d0cb1f5a-173f-48db-bccc-7c13d60bfd0f
circularsquareI saw the threads , found them tougher than this one. I have forgotten most of the stuff 😉 . This one...
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#Threads
469e4baf-9295-4c9c-ac5c-af2e01999a5b
Ah,now I totally get it!!It's not that hard,actually. Thanks,man. Your explanations were really helpful. Now do you mind helping me with my...
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#Threads
a8ce61cc-25b6-4920-8aaf-fa70c0a62c35
Is circularsquareIn case of function of single variable , limit at a point can be found from two directions only i.e from...
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#Threads
a19ee4eb-95d3-4298-b65d-3bb512c65a7e
circularsquareread this#-Link-Snipped-# It contains this specific example as well. It is not solved but hint is given. Actually, I get what you...
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#Threads
d00d4fba-86d0-49ea-8041-2ac820663f02
circularsquareApproach (0,0) along the curve x = y^2 . Then limit of f(x,y) = y^4/2y^4 where y tends to zero. The limit...
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#Threads
17cf3d02-c5f2-48a0-bb6a-0c0438d727f1
circularsquareApproach (0,0) along the curve x = y^2 . Then limit of f(x,y) = y^4/2y^4 where y tends to zero. The limit...
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#Threads
Homogeneous function
Function f (x, y) is a homogeneous expression if f (tx, ty) = (t^n) * f (x, y), for t (≠0). Prove...
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#Threads
Problems on proving given functions again
I really need help on this. Show that each of the following functions satisfy the given relative function that includes partial differentiation.
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#Threads
How to prove this function is not continuous at the origin?
Somebody, help me with this question. Show that the following function is not continuous at the origin(0,0).
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#Threads
Extreme values of implicit function
Please check if my solution is correct or not. Find the extreme values of the following implicit function: 2xy^3 + y -...
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#Threads
f2615101-32e4-4ff6-966d-ef014837d669
simplycodershow us your work buddy....Can you explain me how is that I13 of the seconde part becomes like that and what does...
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#Threads
48756484-97e2-4905-9e0d-f36c8b22a5e2
simplycodershow us your work buddy.... Well,I have figured out how to do the first picture. Can tell me how to do the...
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#Threads
How to find impedance matrix?
How to find the following impedance/admittance matrix? Find the impedance matrix (Z matrix) for (a) and (b) Find admittance matrix (Y matrix)...
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#Threads
How do I get the value of sin from this equation?
I have the answer but I don't see how Sin becomes like that. Someone,please show me why is sin(u)= z/√(x²+z²)?I think there...
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#Threads
9bc6d543-4a0d-4341-9ac5-cc88d143d49c
Dancer_Engineer@Aruwin, The image is not showing. Type the problem.Dancer_Engineer@Aruwin, The image is not showing. Type the problem.I have re-uploaded it ther...
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#Threads
Linear Algebra - Matrices
I am doing an exercise for linear algebra. I have 3 questions here and I hope someone can help me out by...
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#Threads
9f63faee-bac6-4cf2-b3b3-96aef2ab7615
Arnav JoshiThat is because of (-1). (-1)[sup]n[/sup] means -1 has been multiplied by itself n times , that is what 'raised to...
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#Threads
94fc4a9a-0bb0-4f97-8580-2fadad8728a1
Arnav JoshiNo , sin nx won't be zero when n is even number. But instead bn will be zero when n is...
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#Threads
2753754c-55fd-441e-b4c5-01b6ab38c55f
Arnav JoshiThat is just the fourier expansion of f(x) in terms of bn. The fourier series expression is a summation in terms...
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#Threads
64824003-8140-44aa-99f5-4d8c58f73da8
Arnav Joshicos (n pi) = 1 when n is even and it is -1 when n is odd. Thus it is convenient...
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#Threads
23ce8d8a-bb63-447b-aaca-bbbfc198ef25
ReyaBn is 2/pi only when n=1. Value of bn changes when n changes.It a bit complicated at first.Now I get what you...
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#Threads
86b20c0d-1c7f-4db2-906f-27b070fbd1a7
Thanks for the explanations. I got it now. Now I have another question here. And I don't get this part of the...
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#Threads
Fourier series
Hi everyone. I am studying fourier series.I have a question about this example. Please explain to me where does am come from?...
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#Threads
0a2b6a7c-3bed-42a8-84c9-edd7571ba4f9
Praveen-KumarWhy don't you post your research??? Oh, because I didn't find the answer through internet but from my textbook. It was actually...
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#Threads
11d5fb8f-d269-462a-bd1c-84fcc52969ed
Oh,i have figured it out 😀
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#Threads
need help on Gibbs Free Energy
Hi everyone. This time I need help with finding the Gibbs Free Energy of this chemical reaction: CaC2(s)+2H2O(l) --> C2H2 + Ca(OH)2...
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#Threads
0b30527c-084e-45e0-8142-2f3711a4c107
Hey guys,it is alright.I have solved it myself 😀 I searched on the internet about descartes folium and studied it and then...
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#Threads
603fd3b5-d606-4d01-ae34-cfe34d6aa513
I am stucked now. I have tried to differentiate dy/dx=(dy/dx)/(dx/dt) and I got [2t(1+t^3) - 3t^4]/(1-2t^3) but I am not sure if...
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#Threads
d0d78f69-886f-4342-8306-fbe599c9726d
simplycoderRefer this, you would get the correct way atleast. <a href="https://en.wikipedia.org/wiki/Folium_of_Descartes" target="_blank" rel="nofollow noopener...
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#Threads
5cffe75f-294c-44ae-9a8a-f23399b6b3c5
Deepesh BagwaleHello. You seem to be ignoring sin(theta). rewrite the said equation as r = 2a(sin(theta)cos(theta))/(sin(theta) + cos(theta)) ----- (i) pu...
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#Threads
02919314-951c-40eb-9c5e-ecd1fb14155e
pranav_vanarpdo you only want the solutions to the equation or the entire graph ? Plotting r-theta graph will be easier than plotting...
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#Threads
ea1873dd-3115-46ce-88b7-4284665e339b
Praveen-KumarAnswer?Yes,the graph and the table are the answer but i dunno the solution.
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#Threads
Leaf of Descartes
Someone,I need help in this.I have the answer but I can't think of a solution.I have tried a few things,though... Parameterization of...
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#Threads
6a981253-9039-4fa4-b4a1-9f9855dba61f
simplycoderIn integration, always take care that you convert the power terms(raise to or exponential terms) into linear terms if there is no...
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#Threads
integratation
Hi again,I have another problem to solve. What is the integral of cos^3xcos3x dx from 0 to pi/2?? I tried to use:...
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#Threads
be2c94b5-3743-445f-8071-06cbf8a13033
pranav_vanarpOk. Well it is good to know how to plot equations in r and theta. It simplifies matters in some cases in...
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#Threads
f2bfe9a5-b926-4904-8cf1-229be962dbb7
pranav_vanarpdo you only want the solutions to the equation or the entire graph ? Plotting r-theta graph will be easier than plotting...
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#Threads
516743be-e2f5-44bb-8499-02aac547b4e4
pranav_vanarpof course it is valid. in any equation you can put x = rcos theta y = rsin theta. the equation is...
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#Threads
59d18c5b-ba5e-4b0d-8cb1-74afcc7d5369
pranav_vanarptry putting x = r * cos (theta) y = r * sin (theta) . equation becomes r^3 (cos (theta) + sin...
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#Threads
47f88ac9-dce3-4a4a-b21e-2990390c95e7
So here is the question and the solution of the first part.The question is actually in japanese so I had to translate...
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#Threads
2044d6a4-c08e-40be-905f-e410898bfa7e
Dancer_EngineerPost the complete question, both part 1 and part 2. OK,but you're gonna have to wait because I have to write the...
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#Threads
33b1bd1f-233c-44fd-b95f-cea5920049ed
Dancer_EngineerYes, I can make that out. But confused which is x value and which is y value. 😔 I am confused too...
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#Threads
6a38c0e3-887d-4914-aa09-3c89cc6fc45d
the angle and radius i suppose...
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#Threads
solving an equation to plot a graph
Hi everyone.Someone please help me solve this problem.I am stucked,really.This is actually part 2 of a question where part one is already...
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#Threads
conservation of energy in LCR
Can someone tell me how to find the conservation of electrical energy in an LCR?Help me solve this please. LdQ^2/dt + Q/C...
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#Threads
How to install Xcode in Windows 7
Hi, I need to do a programming using Xcode but I do not own a MAC pc.Is there a way I can...
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#Threads
Problem with programming-scheme
I'm taking Information Processing class and I have a problem with one question.Someone PLEASE write out the scheme for me,plz. Here goes...
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#Threads
e9258ae9-798b-4c7e-89c8-ffba5cc74e46
cam someone give me any info about any research that has been done about this?
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#Threads
ed111059-e5e7-4afd-b49b-67c3f70d85d9
I need to prove for a rectangle now and then a triangle I have to finish the MAIN question by this week.Please,someone...
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#Threads
c8ec7e87-0c5f-497e-ba3b-9bb00af79243
hexreaderI know nothing about the program that you are using, but.... Did you really mean to do a subtraction every time you...
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#Threads
how to find the amount of cashback in payment using dr racket?
I am learning about scheme programming now but I do not how to.can someone tell me what is wrong with this?
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#Threads
b8c98985-b538-40d0-84be-e834b7c114ac
ishutopreYup that is possible. You got my point. 😀just finished presenting!!!OMG,I did it!!My 2 teachers were satisfied with my explanation for the...
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#Threads
642661d6-85f4-4140-89da-a4c4df98be12
ishutopreYeah you can do that too. If i use that that i just find the distance n then get the angle just...
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#Threads
92150e79-b6f6-4c3a-8df8-7b02ef243fea
ishutopreHere is the image. Here both the angles will vary with respect to each other to keep the trajectory straight and hence...
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#Threads
dd9cb49e-6644-4f41-aebd-f941cc16ab95
ishutopreIt is simple, as you can find out the equation of trajectory for a point moving in a circle, find out the...
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#Threads
0f0e1ce1-4a85-4525-8ac2-2a0d35a058e2
ishutopreNow can you find out the distance between 0,0 and x,y for a constant angle theta? That is your answer. 😀ok,i think...
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#Threads
344e8951-679c-4db7-94f4-4365d26625fa
ishutopreCalculate the angle subtended by link joining the center with the horizontal with respect to the angle subtended by the two links(...
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#Threads
7124515e-66da-45c0-b7c9-0bcce5b281a6
so how are u gonna prove that the arm touches coordinate (1,-1)?what answer do i give to my teacher?
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#Threads
db1aa74c-ff94-46e8-aae1-c5c0f802b951
How do I answer that question?Whenever I say that we can simply put any number he will then ask me to prove...