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A cumulative distribution function (cdf) has a countable set of discontinuity points. They need not be isolated. Let us call non-isolated points 'accumulation points' of this set of discontinuity points. Is it possible that a cdf admits also countably infinite accumulation points in its set of discontinuity points? If ... | 0 |
A long time ago, I had a teacher who said you could write "lit." to mean "read this as". The typical example is to provide a tongue-in-cheek translation from English to English, such as: The power company charges an administrative (lit. bogus) fee on every bill. The author of the sentence is telling the reader to read ... | 0 |
Given a table with x and f(x) values, g(x) a non-linear least squares approximation, and p(x) the Lagrange interpolating polynomial that passes through all of the points in the given table. What would be the best approximation on f, for a point x = k by only using p(x) and g(x)? Intuitively I thought about calculating ... | 0 |
Suppose there are two seeds kept at equal distance from a light source which emits a photon each on either directions. Seed germinates when a photon falls on it. According to rest frame both the seeds receive photons simultaneously but according to moving frame one of the seeds receive a photon earlier than the other s... | 0 |
I've been asked by a friend taking a TOEIC exam to get an explanation of why "wipe" should be used in the following sentence, as opposed to "wipes": It was mandatory that each person wipe[s] off equipment after use with provided spray and wiping towel. Is it because there is an implied (should) before "wipe"? Or is it ... | 0 |
Is there a word for a decision that's already been made despite the relevant processes not having been followed / analysis done. Foregone conclusion feels similar to what I'm after; but that implies that the facts are so obvious as to make the decision process moot; whilst I'm after a word for where the conclusion is b... | 0 |
Assume that we have positively charged two solid conducting spheres of the same radius and material. It is evident that the surface charge is uniform on them to eliminate the internal electric field everywhere inside the spheres. However, how does the charge distribution change if we bring them close to each other? Rec... | 0 |
I understand it's not possible to transmit information using entangled particles due to the randomness of the measure results. But what if the act of measuring itself IS the information? Let's say there's a constant flow of entangled particles received either side by Alice and Bob Bob measures every other particle. Is ... | 0 |
I was reading about the Pascal barrel bursting experiment, and it almost makes sense to me, save for one bit. I know that pressure corresponds to the number of collisions in the fluid. So my q is: why does adding water in the tall, narrow pipe in the experiment increase the number of collisions down in the barrel drast... | 0 |
I am not an expert in languages and this is my first question here... To my understanding, most of the languages were spoken before writing was discovered/evolved. What would cause a language to have same/similar sounding words with different meanings when the language was spoken? Wouldn't it cause more confusion when ... | 0 |
For the operation of the transistor, the base-emitter junction is forward-biased and the Base collector junction is reversed-biased. Due to the concentration gradient, electrons from the N side (Emitter) go towards the P side (Base). Since the base is lightly doped and thin and due to the reverse biasing of the base-co... | 0 |
I would like to know some tips or hints to find a way to recognize whether "as" is using a meaning of "when" or a meaning of "because" when "as" connects two sentences. For example, the sentence below which currently confuses me. The third point, where it is in our interests to engage directly with China in a construct... | 0 |
Trying to work out whether to use 'is' or 'are' in the following sentences (aware they might differ): How many grams of flour is/are on the scale? How many centilitres of cough syrup are/is in the measuring cup? How many kilograms of fruit are/is on the scale? 'Are' seems most natural to me when speaking, but have read... | 0 |
I was reading a preprint on archives (not yet published), and in the introduction the authors say "Following X in [ref]..." and go on to set up the problem. When I went to [ref], it turns out the authors of the preprint actually take three paragraphs word for word from X and include them in their introduction. Is this ... | 0 |
Suppose we have a finite group G, and we had a configuration of points, lines etc. and lets say that the group acts faithfully and primitively on the set of points. Will the group be guaranteed to be flag-transitive on the entire figure or can G fix some proper subset of lines, for instance? My intuition says that shou... | 0 |
Electromagnetic radiation phenomena exhibit a temporal asymmetry: we observe radiation coherently diverging from a radiating source, such the light emitted by a star, but we do not observe radiation coherently converging into a source, unless we delicately set up such a system. What can explain this asymmetry? And how ... | 0 |
Next year I have choose a few optative courses from a big list, but syllabi are not available yet, so I have to make a choice based on names only. I am thinking about taking one titled "Groups and representations". I have really enjoyed my Abstract Algebra courses so far, specially the part that covered Group theory. H... | 0 |
What makes quantum computers faster in certain problems than normal computers? Does quantum computing means that many solutions are explored simultaneously instead of one at a time due to quantum superposition of qubits? Is the complexity of solutions explored proportional to the number of qubits? That's my impression ... | 0 |
A grammatically correct way to ask someone a question would be: Why are you still here? If I want to make a statement (instead of a true question), such as, You've been here too long or Your comments are annoying, or You're either a troll or a quarrelsome person, would "Why you are still here" (meaning- why do you cont... | 0 |
Has anyone (in general) experimented with simulating moon lighting? It means the following. A gray ball is illuminated with light with a brightness equal to that of the sun. And at the corresponding angular distance from it, the level of illumination by the light reflected from the ball surface is measured and visually... | 0 |
Cambridge says that the idiom home and dry is British English, which explains why I hear it used around me. It means: to have successfully finished something but I have heard it used also literally. Then I understand it as meaning to return home safe and sound after a travel/adventure of some sort. I wonder if this idi... | 0 |
I'd like to know a word to describe a person who loves celebrities, gossips, trends or anything that is popular and is easily affected by them. She said she had moved to Paris because she loved "Emily in Paris" on Netflix. It seems that she is such a " "! I came up with "sheep"(https://www.urbandictionary.com/define.ph... | 0 |
I'm trying to get a deeper understanding of the classification problem for finite groups and in particular the extension problem. I'm looking for some advanced books on the theory of finite group extensions which extensively and deeply covers the topic. Maybe an all-in-one book doesn't exist, in case I'd like also sugg... | 0 |
Is there any book for a Mathematics student who can learn Machine learning in the aspect of Banach space geometry? Or, one can understand the connection between Geometry of Banach spaces and Machine learning? Any suggestions in terms of article, note, book regarding the development of such study is always welcomed. It ... | 0 |
The professor asked me to write a small computer program that takes double integrals of rapidly varying functions. He did not mention which functions should be integrated but he said that I must use a numerical method with variable step size. I hope someone can recommend me a method that will do the job. It would be ni... | 0 |
There are many ways to draw a simple flowchart, using packages like tikz. But recently I read a paper and it seems that their complex flowchart is not a picture, but actually generated by latex. Here is what it looks like: I really would like to know how to make a chart like this, if there is a minimal example. EDIT: F... | 0 |
If the expansion of the universe happens uniformly, how does this affect small objects? For example, are the distances between protons and neutrons inside a nucleus actually expanding? Is the nucleus constantly pulling itself together so its diameter stays constant? What about say between the carbon atoms in a diamond?... | 0 |
I have a problem concerning a cylinder, cut by an arbitrary plane which is perpendicular to an axis, z. I know dz, the distance from centre of the cylinder to the plane. I know all dimensions of the cylinder. I know theta, the angle of rotation from the axis z. My poor drawing How do I calculate the volume of the cylin... | 0 |
Say I have some random variables X,Y that are jointly distributed according to some probability distribution (not necessarily independent). Is it possible to construct a Z = f(X,Y) (i.e. Z is solely dependent on both X and Y with no other source of randomness) such that X is independent of Y given Z? I believe this hol... | 0 |
As far as I understand, the branes of brane cosmology are lower-dimensional "sub-manifolds" of some space. It was hard to imagine for me how such structure could exist and be physical. But then I learned of topological defects, which are essentially that. So my question is: Question: Are the branes of brane cosmology s... | 0 |
i'm taking a qft theory class, and we are doing a little bit of group theory, today the professor introduced us to Lie groups, but his definition is a little be weird he said that lie groups are groups whose elements are function of n parameters. This kinda confuses me and i can not see how this definition is equivalen... | 0 |
I am struggling to answer this question, and I was hoping for some assistance and/or help, it would be greatly appreciated. This link is a screenshot of the question because it does include diagrams: https://i.stack.imgur.com/wMVod.png The question includes a definition that is used to answer the question; if anyone kn... | 0 |
I have some simulated data from a model of an IMU's gyroscopes. I am trying to use Allan deviation to verify that we have correctly modelled various sources of error in the sensor data. I was able to verify angular random walk, and have now moved on to bias instability. I'm following a tutorial on mathworks which descr... | 0 |
By equivalence principle, one can find a local inertial frame at every point of spacetime. Then this is usually used to introduce the general spacetime metric, as a back-transform of the Minkowski metric. The transformation from Minkowski to general metric depends only on the first derivatives of the coordinate transfo... | 0 |
I understand Thomson scattering as: When an EM wave is incident upon a charge causes it to oscillate in turn releasing energy as another electromagnetic wave. In an Electrodynamics lecture we took a different approach by assuming the far-field limit. The EM wave makes the charge oscillate causing it to emulate an oscil... | 0 |
i'm writing my first document using LaTex. I want to include good-quality figures, so i opted to use the PDF format. i saved the images from the plots in Matlab as pdf files, and when i included the figure in my document it showed up with extra white borders, i'm not sure how to fix that. Cropping the pdf can be done, ... | 0 |
We use Past Perfect to speak about actions before some moment in the past. What if my speaking partner doesn't know about a moment in the past? I had done everything. (I don't mention it, but in the mind I mean, I had done before some moment, which I know). What if i don't mention an moment, but it's obvious? I had wri... | 0 |
Suppose I have an infinite wire and close by I place a loop which has increasing current. The wire and the loop is fixed . Now an emf will be induced in the infinite wire which in turn induces a current to oppose the changing magnetic field . My question is why this emf is induced in the infinite wire even though the w... | 0 |
I am currently reading a book about numerical optimization and have reached line search methods. In a section studying the convergence rate of the gradient descent method, I am really struggling to understand how alfa is determined (see below). I really do not understand at all how to even differentiate with regards to... | 0 |
It is common knowledge that submodules of finitely generated modules need not be finitely generated. One can see this by considering a non-Notherian ring and extending this as a module. My question is, how does one think about this intuitively? The way that I think about is: When I restrict myself to a subspace, there ... | 0 |
Suppose I want to cover a whole circle of with hexagons. See the attached photo where coloured hexagons are those required to cover a whole circle. Given the length of the side of the hexagons and the radius of the circle, what's the minimum number of hexagons required to cover such circle? I notice that there are thre... | 0 |
I know that in the pure algebraic context, connected groupoids are equivalent to groups. Moreover, connected groupoids can be seen as action groupoids. Consequently, any abstract groupoid is essentially a disjoint union of action groupoids. Therefore, is it not more natural to study group actions than study groupoids? ... | 0 |
In Information Technology, we often see something that looks like a compound adjective, pairing a number and a noum. Some examples are two-factor authentication, two-step verification and twelve-factor app. I always found it amusing that the noun itself is not plural. Why isn't it named, for example, "two-factors authe... | 0 |
I have the simplistic image of a photon being a disturbance in the photon field caused by the loss of energy of an electron. In this image, I see that the disturbance is essentially a harmonic oscillation and it 'traces out a wave' as it propagates through the field. Also, given this image, it seems that the 'larger' t... | 0 |
While writing a fantasy narration I created this sentence: High among the clouds a castle floated. My American friend tells me it sounds bad to a native ear. I think he sees a problem with the unusual word order. At the same time the Hobbit starts with: In a hole in the ground there lived a hobbit. ...which seems a sim... | 0 |
I was just studying statics when I realized that a body can be in both static or dynamic equilibrium at the same time but I am not so sure. My textbook says that an object at rest is in static equilibrium while an object moving with zero acceleration i.e constant velocity is in dynamic equilibrium But.... Motion is rel... | 0 |
A noon cannon usually has a single convex lens which focuses sunlight onto a fuse. The cannon contains gunpowder. The fuse ignites and the gun discharges at noon. https://en.wikipedia.org/wiki/Sundial_cannon A query has arisen about a noon cannon with TWO lenses -- what is the benefit of having two lenses? Does it prov... | 0 |
I'm using CircuiTikZ and I came across this issue frequently: every time I want to tweak some options using tikzset, there is no documentation for the available key-value pairs. For example, if I want to change the voltage direction, in the documentation, only value (i.e., RPvoltages) is provided. However, I prefer to ... | 0 |
Sorry if this sounds like a silly question, but what would happen if a scientist observes Schrodinger's cat alive, but is then thrown into a black hole before he has leaked any information to the environment. Then later a second scientist observes the cat - can he observe it as dead this time, since the first scientist... | 0 |
So bound states have continuous position representation, yet countable discrete energy levels. Doesn't this imply that one of the following operations is invalid: <x|> or <E|>. Because |> cannot simultaneously have countable and uncountable number of elements. And the number of elements in the bra and the ket need to m... | 0 |
There are a couple of sentences: The water froze and caused the pipe to burst. If it is a succession of past events it should be Past Simple. But if the first part happened earlier, it should be : The water had frozen and caused the pipe to burst.So, can it be Past Perfect, or this sentence must be written in Past Simp... | 0 |
Suppose a piston enclosing an amount of air-fuel mixture and then this piston compresses the mixture to the point of auto ignition, if every part of the mixture ignite simultaneously is it safe to say that there isn't a flame front because it can't move because there is no longer a combustible mixture? If there is a fl... | 0 |
In Arabic, the idiom "You made my neck as small as a sesame seed" is used to mean that someone related to you or a friend, put you in an embarassing situation with others. This idiom is usually used by parents when their children make them anything but proud. People who have long necks are assumed to be proud; hence, '... | 0 |
I am currently reading electrodynamics from Feynman. When talking about the energy of the electromagnetic fields, he says that the location of the field energy could be known at least theoretically since all energy is a source of gravitational attraction, and if we could measure the gravitational attraction we could co... | 0 |
Suppose that, in a homogeneous linear system, the coefficients of one of the unknowns are all equal to zero. Show that the system has a nontrivial solution. Attempt: Note that the rank must be less than or equal to the number of columns in the coefficient matrix. If we had all columns of the augmented matrix different ... | 0 |
What comes after "pair"? Maybe "quad" for four? In cards it's "three/four of a kind" but what about contexts beyond cards (like science)? For example, in physics there's a "pair-flip model," but what is the extension of this model to flipping three things? I've also tried the internet, see also: https://en.wikipedia.or... | 0 |
There's a word people around me used to use a lot, phonetically it would spell 'stercus' or 'stircus', I think. It was used in a context meaning excitable, frenzied, frenetic, that kind of thing. Like, you could say that: Kids who eat lots of sugar tend to go stercus. I don't know if it's an actual word and I can't fin... | 0 |
In the double slit experiment, an interaction with a detecting mechanism is needed to know which slit was the one the photon or electron passed through. I read in other questions that polarized filters are placed in the slits, how is it exactly that this helps us know which slit the photon passed through? Do experiment... | 0 |
I am using sagemath to compute Einstein tensors of a non-standard spacetime. The output is something horrid and non-diagonal. I need to find the Eigenvalues of this tensor... which is represented as a symbolic matrix. This is proving to be non-trivial with the sagemath documentation. Is there a way to convert my tensor... | 0 |
uh I'm curious again regarding the theories of reflection. This is known that Metals contain free electrons that absorb energy and vibrate when they come in contact with light. Later, they release the energy back in the form of light. But what if we polish a transparent conductive oxide glass (transparent glass which i... | 0 |
I know for abelian group, there is a Kronecker decomposition theorem. It said any finite abelian group can be factored as direct sum of cyclic group of prime power order. I want to know is there anything similar with this for the abelian semigroup with identity? As for semigroup, we don't need the inversion, so it seem... | 0 |
When a spinning top slowly advances and hit a surface (a wall), intuitively one would expect that the top gets bounced mostly along the wall, due to the friction between the top and the wall. But the observed phenomenon is that the top gets bounced mostly in the norm direction of the wall, and in a much higher velocity... | 0 |
Looking for alternative to "opened a can of worms" in the following sentence... It needs to be graphical enough for a young readership to grasp, a readership that won't have heard of Pandora's box or even know what a can of worms is. Having fixed one friend's laptop I wondered if I may have opened a can of worms and no... | 0 |
I have read a book saying that "... backward induction cannot be applied to games of imperfect or incomplete information because this entails cutting through non-singleton information sets." However, in another textbook, it says that backward induction can be applied to games of imperfect information, and we can derive... | 0 |
From what I know, current flows across two points only if there is some potential difference across those two points. If that is the case, why does the current flow through a wire then? See the picture for clarity: As one can see, the potential is same on the left side of the wire. The current should not flow, yet it s... | 0 |
I know that electric current is a scalar quantity and hence it should not follow vector addition. But I have read that equal currents in opposite directions will cancel out each other so is this kind of addition not a kind of vector addition?... where while adding we are including their directions also. So please expla... | 0 |
Is it possible to arrange a set of massive objects such as stars in orbit around a black hole such that objects of lesser mass cannot physically reach and fall into the event horizon of the black hole? This could be similar to how Jupiter may protect the Earth from long period comets. In other words, could there be sev... | 0 |
I need to find the X-coordinate of a vertex in a right triangle. It's been a while since I used trigonometry and I can't seem to wrap my head around it. Image with coordinates The Y-coordinate is always the same as the Y-coordinate of the vertex on the left, under the radius. I've tried using line intersection, but I d... | 0 |
We know that the Mandelbrot fractal contains a countable number of copies of itself. See : Does the Mandelbrot fractal contain countably or uncountably many copies of itself? Where that is explained. Notice that polynomials have a finite amount of zero's and entire functions have a countable amount of zero's. So I star... | 0 |
During the recent merger of two Neutron stars the lead up to the merger was detected as gravitation waves. This was the merger of two spinning bodies that had very strong magnetic fields and they were orbiting each other. How sure is the community of physicists that the signals detected were not ULF radio waves? Radio ... | 0 |
I am not sure why, but when I am working on a multi-file project in TeX with a latexmain file, the compiler included with VIM-LaTeX does not compile multiple times to include newly added citations in my bibliography. This only occurs for multi-file projects. If I work on a project that has only one TeX file the file is... | 0 |
Take these sentences: I felt he was mean to do that. We'd be stupid to do something like that. I feel like the "to do that" part in them functions differently syntactically than in sentences like "It is mean to do that" where "to do that" seems to be an infinitive clause functioning as the subject. Is "to do that" a co... | 0 |
In general, knowing the mass distribution of two colliding objects and the exact point of contact, how would one take into account angular motion in the analysis of the dynamics of the individual mechanical energy of the objects and the total energy of the mechanical system? That is, each object may be rotating about i... | 0 |
I'm looking for some interesting operators for which I can find invariant subspaces by hand. As most subspaces had some connections to eigenvectors, I'm currently searching for "non-trivial" / interesting (linear) bounded operators on Banach spaces, preferably Hilbert spaces, which do not have any eigenvalues. I know a... | 0 |
When I jump off of something, even with eyes closed I can be pretty certain that I'm falling due to the associated sensation of falling. However, as gravity should be affecting each of my internal organs equally, surely the sensation must be due only to the air resistance, which causes my outer body to accelerate slowe... | 0 |
Take a cupboard or just a large wooden box. When pushed it a point above its center of mass, the cupboard topples because there is a net torque due to the friction and the force you apply. When pushed at a point below the center of mass, the cupboard does not as the torque due to the friction and the torque due to the ... | 0 |
I asked a similar question before, but it did not give the answer I was looking for, so I will clarify what I actually want in this question. H. Andreka created a formal first-order logic theory that was meant to axiomatize special relativity. I very much enjoyed reading his paper and other papers that axiomatized spec... | 0 |
I am reading about monoidal categories and I am not able to think of categories which are non-monoidal. Am I thinking in the wrong direction? Is being monoidal, an additional property like topology? For example, given a set you define a topology on it making it a topological space. Similarly, given a category, you defi... | 0 |
Are all wormholes gravitational instantons in the context of General Relativity? My question concerns also the topology of spacetime in such case. A full Wick rotation of the metric, seems to change the geometry from that of Pseudo-Riemannian to Riemannian one. So given that topology of the Pseudo-Riemannian manifold i... | 0 |
I was wondering how one might write down an expression which estimates the force experienced if a person were to be hit by a tidal wave (perhaps assuming the person could be modelled as a sphere). I guess you could also use Wagner theory to find the instantaneous force on impact, but this becomes complicated. I assume ... | 0 |
I was looking at my bathroom tiles, which were an interesting sort of repeating pattern of different squares and rectangles, and wondering how to model them as a recursion formula. Does anyone know any good or interesting books on recursion? Advanced level is fine with me. For my level of background, I just wrapped up ... | 0 |
I am currently studying the Lagrangian mechanics, and as far as I've understood, forces of constraint are the forces that are perpendicular to the surface of the movement of the object, thus do not cause any change in the velocity of, and constrain the trajectory of the object, (e.g. force due to the tension, the norma... | 0 |
TLDR: Do observations of larger galaxies favour 'cuspy' dark matter halo distributions, as predicted by N-body simulations? I've been trying to understand the 'core-cusp' problem for dark matter halos and I understand that observations of dwarf galaxies don't agree with the results of N-body CDM simulations. What I don... | 0 |
The class of Eberlein compacts (those compacts spaces homeomorphic to a weakly compact subset of a Banach space) is well known and well studied; one of the many properties it enjoys is that every set in this class is also sequentially compact, thanks to Eberlein-Smulian. This led me to wonder: Eberlein-Smulian also hol... | 0 |
I am recently studying some chiral algebra from physics perspective. I found many chiral algebras have nice coset realization of current algebra. However, most of the literatures are very algebraic. And I have questions about the generators of chiral algebra at the level of OPE. One confusing thing for me is that many ... | 0 |
I mean open up a book on QFT and I know things like path integrals still don't have a fully worked formalism but then you see Fourier transforms and residues from complex analysis being applied to integrals of "field operators". I don't mean the functional analysis of quantum mechanics, I mean mathematically speaking a... | 0 |
Once an entangled particle is measured, it's wave function collapses. From my understanding, any sort of information exchanged to the particles can be considered a mistaken measurement. So how do researchers entangle particles, move them apart and then measure them? I assume they are held in vacuum and are maintained w... | 0 |
In Birrell and Davies, the author says in the Introduction that If the gravitational field is treated as a small perturbation, and attempts are made to quantize it along the lines of quantum electrodynamics (Q.E.D.), then the square of the Planck length appears in the role of coupling constant. But why does the square ... | 0 |
He promised that he will help me with my homework. He promised [that] he would help me with my homework. Which sentence is grammatically correct? I saw this debate and I genuinely don't know the answer since English isn't my first language. But I feel like the second sentence is more pleasing to hear. Can someone help?... | 0 |
Could the following sentence be considered correct when comparing two or more subjects? It's visually more distinct. I'm aware that you can rewrite the sentence like this: It's, visually, more distinct. But, the pauses feel unnatural. There's also: It's more visually distinct. This just feels wrong, even if it's techni... | 0 |
I usually have trouble trying to read huge tomes without any proper motivation - there's no feeling that I'm "working" towards something. Perhaps I've been spoiled by "Abel's Theorem through Problems and Solutions" by V.B Alekseev which builds up group theory solely to prove the insolubility of the quintic, but it was ... | 0 |
Can any periodic set of integers be realized as the zero-set of a linear recurrence relation? It's stated on the OEIS page for eventually periodic sequences that "all eventually periodic sequences with period N are linear recurrence relations of order at most N" but if you interpret "are linear recurrence relations" as... | 0 |
I have a question pertaining to Penrose's ideas about cyclic cosmology. As predicted therein, the end of each cycle comes about when massive particles are extinct and time is no longer measured. What I don't understand is why this state is not an eternal one; what could possibly give rise to a new period of inflation, ... | 0 |
Imagine a permanent magnet suspended in the air with an iron disc below it. Inbetween these a thick aluminium barrier. Attached to the disc at an angle is an air spring (or air shock). The magnet attracts the disc which hits the barrier but some of the force is absorbed by the air spring. The equation of the force the ... | 0 |
Can someone please reconcile the difference between the two common integrals below? They are almost identical except what's inside the natural log function. The denominator signs are switched depending on whether it's the variable x or u. I understand u represents a function where as x represents a variable but I'm not... | 0 |
Length of a curve can be defined for an arbitrary rectifiable curve(even in an arbitrary metric space). As is shown in this answer we can define line integral over any such curve(even in an arbitrary metric space). When it comes to surfaces and higher-dimensional cases it seems that there are no constructions of such g... | 0 |
For me it is counter-intuitive: I should be hearing more low frequency sounds (bass) at a greater distance from a headphone speaker (like I hear only the bass when standing outside a club), because the bass travels further and high frequency sounds get absorbed easier on the way to the ear. But of course it sounds like... | 0 |
According to me we will apply a force on the charge and it will do a certain displacement to reach that point from infinity where we wanted to bring it and at that point there is no electric field. But still we applied force and displacement also occurred therefore work done should not be zero. Please explain me the co... | 0 |
There's an idiom in Argentina translated roughly as "to sleep someone" (dormir a alguien), which is used when someone frustrates the plans of someone else by taking what the other person wanted in the first place and who obtains the benefit knows it. This may cover different situations, for example: If you walk ahead i... | 0 |
I am having a partcular issue with several pairs of glasses and wish to understand the physics of it. The problem is that the right arm of the frame is too tight against my temple, and at the same time the left nosepad is too tight on my nose. This seems rather unintuitive at first, as one might think if the right arm ... | 0 |
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