Diagram Definition and 1000 Threads

Homework Statement The following species has been discovered in interstellar space: HNC. Draw the Lewis Dot diagram. Homework Equations N/A The Attempt at a Solution I tried several different configurations (see below), but they were all marked incorrect. Here is the basic method...

Hello, is there a representation of the process taking place in X-ray photoelectron spectroscopy, describing the interaction of an incoming photon with the electron of the atom?

Hello, I had a doubt about a specific Higgs boson decay. In the process H -> c+\bar{s}+W^-, where c is the charm quark, \bar{s} the anti strange quark, in tree level I wrote the diagrams sent in attachment. My question is: does the third diagram exist? I do know that the s...

1. How do I draw a diagram to demonstrate why motor oil has a higher specific heat capacity than water?

For a no load ideal transformer V1 is anti phase with E1? or in phase like this?

Homework Statement I've spent the last hour trying to get this, and it's starting to drive me crazy! I'm not sure how to approach the waveform, as there are two forms? I'm guessing that the period in this case is 4 seconds, and they've included a second wave to reiterate that? Homework...

Z diagram and Q cycle ?? (Bad teacher) Hey guys, my teacher told me to review the Z diagram + Q cycle. I'm pretty sure that this means I'm to study Light reactions of Photo synthesis and The Fluid mosiac model. Sound Right? Also this is my first post, so hi :D

Hi! This is my first post. I am trying to build a 4-Point resistivity measurement adapter according to instructions that can be found here: "www.aeroelectric.com/articles/LowOhmsAdapter_3.pdf" On the fifth page (the second page of the schematic) there is a symbol that I do not...

Hello all! Clebsch-Gordon Coefficients tell us that in an SO(3) representation 3 x 2 = 4 + 2 (x/+ is the tensor product/sum). In practicing my Young Diagrams I tried to re-create this calcuation, but can't seem to figure out how to draw a doublet. I would appreciate some advice! (The triplet...

Homework Statement see attached image Homework Equations The Attempt at a Solution So I know as it is a VECTOR diagram it must either be B or C So I checked that 1, 2, 3, 4 all pointed in the correct directions and they do in both diagrams. I chose B (but at random) and the...

Homework Statement See attachments Homework Equations The Attempt at a Solution In the explanation attachment, I don't get the last paragraph "Note that force Fce acts downward on bar...compression." Since from the figure Fce is pointing down, and Fbd is pointing up, shouldn't...

1. Question Note: arg ( ) refers to the argument of the complex number, i.e. the angle. | | refers to the modulus, the length. Since I don't know how to show an Argand diagram here, I will describe my solution algebraically.1. (a) arg(z - 3) = -3∏/4, arg(z + 3) = -∏/2 1. (b) arg(z - 4i) =...

I have drawn the following shear force diagram however it says it is wrong. Could somebody please explain to me what is wrong with it. The points in the diagram are 0 then -4 then 1.25 then 1.25, then back to 0.

Homework Statement I feel that I am a bit fuzzy whether things are reaction forces. In the diagram I see there is a beam holding point B, and there are 3 forces: Cable BC, 500N, and 780N. My professor wrote: Ask yourself: is the beam holding the point from moving up or down, right or left...

Homework Statement Curved portions of highways are always banked (tilted) to prevent cars from sliding off the highway. When a highway is dry, the frictional force between the tires and the road surface may be enough to prevent sliding. When the highway is wet, however, the frictional force...

Homework Statement finding the overall transfer equation Homework Equations not sure which equation to use The Attempt at a Solution unsure how to solve this, don't know where to start off from

Homework Statement Given the simple beam in the picture, draw the moment and shear diagram. point loads = qa distributed load : q on a length of 2a where M - is the moment, T - is the shear Homework Equations The Attempt at a Solution I draw the shear diagram, found all the ractions but I'm...

Feynman Diagram: Simga+ --> p + gamma? Hi, Can anyone give me some indications as to how to draw the feynman diagram for the following decay? Ʃ+ → p + \gamma Should I consider the quark composition of the sigma first? Thanks a lot.

An aeroplane (A) can fly at 600kmh^-1 in still air. It has to fly to an airport which is SW of its current position. There is a wind of 90kmh^-1 blowing from N20W. a) Find the direction that the plane should take relative to the wind b) what is the ground speed of aeroplane. I have...

Hello, I'm a civil engineering student. I learned how to contruct a funicular polygon and bending moment diagrams in two different subjects and I realized how close looking the two are, so I wondered if there was a good explanation to relate the two. I can feel it's kind of the same as the...

Homework Statement Calculate the efficiency of the heat machine that is shown in the figure. Draw the corresponding Carnot cycle diagram in the S-T plane. Homework Equations \varepsilon = \frac{ \Delta W}{\Delta Q}. \Delta Q = T \Delta S The Attempt at a Solution My problem lies in...

Urgent Help Please! Just want to ask some rules/ tips in drawing MOMENT DIAGRAM BY PARTS and COMPUTING FOR THE MOMENT OF THE AREA OF THE MOMENT about a particular axis. Here's the step I typically do: 1. Get the reactions. 2. Plot the moment diagram of EVERY force. (that's why it's...

The question is to calculate: q, w, ∆U, ∆H, ∆S for each step(A to B, B to C, C to A) I know how to calculate the values on figure 1, but, how to calculate A to B on figure 2? For A to B on figure 1, it is isothermal process, therefore, I can easy to find out the answer, but I don't know...

Please consider http://gyazo.com/e5c5b4f7808a63e7e664440259ac3058 I agree with all notes made on that slide, but I don't actually get how they constructed the diagram from that? I understand that they line represents frequency so going to 0 to infinity means the line would travel from -0.5 to...

Homework Statement Homework Equations The Attempt at a Solution Please could someone check my vector diagram could someone also help me with part (c)

Homework Statement draw the eye diagram you would expect to see should a digital signal be passed through a transmission line with a bandwidth limited to three times the maximum bit rate of the digital signal. the answer is "Only f1 and f3 pass through" My question is, what about f2 ? Why...

Homework Statement An elevator containing 3 passengers(with a mass of 72kg 84 kg and 35 kg) has a mass combined of 1030 kg . The cable attached to the elevator exherts an upward force of 12000 N. But the friction opposing the motion of the elevator is 1400 N. a) Draw a free body diagram...

Homework Statement can anyone show me what the free body diagram of this would look like? Thankyou

I have the problem below, my question is what should the shear force diagram look like, I know its just a simple cantilever so does that mean the shear force diagram will be very rectangular looking?

Homework Statement http://gyazo.com/22f5c655071e49adf3f4652e8042873b I derived the proof myself, but by arbitrary changing the t limit to infinity. I'm hoping that by understanding the diagram in the link above I will have a better idea of why I changed the limit. I currently look at it...

Hi all After many months of contemplating, coming up with tattoo ideas, waiting a few months to see if I still like that idea, etc etc, I've settled on getting a Feynman diagram for many reasons, but having a but of trouble settling on one in particular. I've seen a few with the standard...

Greetings Members I'm a chemistry student doing some research [this is not homework!] on boost conversion and I need help discerning the node analysis for this step-up voltage regulator. I've found pretty decent tutorials on elements such as the comparator, npn transistor, and oscillator. But...

Homework Statement Here is the diagram and I need to find a relationship between the acceleration in block A and the acceleration in block B. http://dl.dropbox.com/u/64325990/HW%20Pictures/datum2.PNG The Attempt at a Solution Here is my diagram, which is wrong...

Homework Statement I've attached my sfd and bmd for a beam, i just need someone to tell me if its right. the 15kN on the left side is a reaction force. Homework Equations The Attempt at a Solution i've attached my working

Mastering physics Knight. 2nd edition. A figure shows two dots of a motion diagram and vector \vec{V}_{1} Copy this figure and add vector \vec{V}_{2} and dot 3 if the accelration vector \vec{a} at dot 2 (a) points up and (b) points down. \vec{V}_{1} is a vertical vector pointing upward with...

Homework Statement Homework Equations moment = force x distance The Attempt at a Solution the book answer is different and doesn't show bending diagram. Can't tell what it should look like. Answer for maximum stress in book is way off: m=60 k*ft, s=17.1 in^3, stress = m/s =...

Ok, so I am pretty sure I understand this Full Adder diagram fairly well. But I have one question... I included the picture of course. Take a look at R5 1K. What is the purpose of this resistor? Why doesn't current always flow through the 1K R5 resistor rather than going to the 10K R6...

i recently saw in my physics textbook a diagram of a positron and a electron being created in pair production. The diagram showed that as soon they where created, they moved in opposite directions and then they spiralled inwards a bit. Now i think the reason why they move in opposite directions...

In the E-k diagrams for a semiconductor material,what exactly is k? -is it just the quantized quantity in the bloch theorem :ψ(x+a)=exp(i.k.a)ψ(x) -is it the wavevector of the electron wave -does it determines the direction of the motion, i.e a given k corresponds to motion in a certain...

Homework Statement Homework Equations moment = force x distanceThe Attempt at a Solution on sheet. According to the book, the max moment is 5.6 kN (at a distance of 2.4 m from point A), which was my calculation before adding the force at A (.8 kN upward) whats wrong?

I want to plot a cylinder pressure vs crankangle diagram for a 4 cylinder naturally aspirated diesle engine ,do I require AVL boost for this ?and how can you plot it manually?

I understand that a Hubble diagram is a graph of recession velocity plotted against distance for distant galaxies, and shows a linear relationship. The Hubble constant is the gradient of the graph. We are now observing extremely distant galaxies with greater than expected velocities due to...

Hey, I'm having a bit of trouble with a Free Body Diagram question and I'm not sure if I'm going about it properly. The question asks; A 82kg couch is being pushed with a force of 56N at an angle of 40 degrees above the horizontal. If the coefficient of friction between the couch and...

Hey, I'm having a bit of trouble with a Free Body Diagram question and I'm not sure if I'm going about it properly. The question asks; A 82kg couch is being pushed with a force of 56N at an angle of 40 degrees above the horizontal. If the coefficient of friction between the couch and...

Homework Statement I attached a picture of the problem and I was wondering why the direction of the friction on block A is to the right. Shouldn't it be to the left because friction always opposes the direction of the acceleration (which is in this case to the right for block A)? Thanks!

Homework Statement Suppose on a spacetime diagram, an event happens at x=-4, t=5 and another event happens at x=0 and t=6. If there is a frame such that the two events happen simultaneously, what would the relative speed of that frame be? Homework Equations The Attempt at a...

Homework Statement I have to find the forces FGB FCB AND FGH http://desmond.imageshack.us/Himg696/scaled.php?server=696&filename=img59wa.gif&res=medium P1 = 5 kN, P2 = 10 kN, JY = 21.25 kN a1 = 2 m, a2 = 1 m, a3 = 0.5 m, a4 = 1 m, a5 = 2.5 m Angle FGH makes with the horizontal is: 26.57...

Homework Statement http://desmond.imageshack.us/Himg804/scaled.php?server=804&filename=img1.gif&res=medium I have to change this space diagram into a free body diagram and i am struggling Homework Equations The Attempt at a Solution I have put a reaction force in the the x...

Is the phase diagram for an oscilliator (all sorts of oscilliations) always clockwise? If it is so, why?

Homework Statement An ideal monatomic gas is taken through the above cycle where p1= 2 X 105 Pa and V1 = 5 cm3. During the cycle both the pressure and volume will change such that p2 = 2 p1 and V2 = 4 V1. a) How much work is done by the gas in going from state a to state c along path abc...