Diagram Definition and 1000 Threads

Homework Statement How do you find the contributions per atom for calculating the reducible parts? For example CO3-2 has pt. grp: D3h. From the character tables-- the first row (unshifted atoms) is: 3,0,1,3,0,1. Second row (coefficients): 1,2,3,1,2,3 Third Row (contributions per atom)...

http://img687.imageshack.us/img687/5889/shear.png I'm having trouble drawing the shear diagram on MAsteringEngineering. I'm pretty sure the values are correct too? I got By = 10.5 and Ay = 9.5 V(x) = -2x+9.5 for the distributed load so when I set V=0, I find the x intercept to be...

hi If I understand it correctly, the hyperbolas in the kruskal diagram define locations with the same space time. Now my question is, how can I make a function out of the hyperbola solved for spacetime on one side and gravity/metric tensor on the other side? Thank you very much for an answer...

Homework Statement The figure shows a PV diagram for 2.69 mole of oxygen gas in a sealed container. The temperature of state 1 is 21 C. Pressure is Pi. What is T3 and T4? http://s74.photobucket.com/user/teysure/media/phyiscs.png.html?sort=3&o=0 my attempt at solving the solution...

Homework Statement The diagram shows two pulses, each of length , traveling toward each other at equal speed in a rope Which diagram below best represent sthe shape ofthe rope when both pulses are in region AB? Homework Equations The Attempt at a Solution The answer is the...

Can someone please break down how to do this one? I'm absolutely stumped on this one. Thank you very much. :)Use the following sets to complete the operations. Universal set = {lower case English letters; a,b,c,d…x,y,z} V = {a,e,i,o,u} S = {letters in the word “spring”} G = {letters in the word...

Homework Statement See picture. Homework Equations The Attempt at a Solution I want to know what are all the forces acting on this object. If the object is 10N , the tension force suppose to be 10N. But wouldn' there be a normal force acting between the point touching the...

Hi all Just a basic question really; I'm at university and have been tutoring someone through a couple of A level physics modules, and I'm covering some basic particle physics at the moment, which is all alright, but I've come to an issue with Feynman diagrams. Basically, for interactions...

The boolean expression I am working with is: ((ab)'(b'c)' + a'bpc') where ' is the NOT symbol. I have the following logic circuit diagram. Is it correct?

Homework Statement Draw a free body diagram of each object in Italics, that is in centripetal acceleration, and name the force causing this centripetal acceleration. a. Moon in circular orbit around Earth. b. Electron in circular orbit around nucleus of atom . c. Snowboarder slides over...

Homework Statement Draw the ray diagrams for a pencil sitting on the principal axis behind and in front of the focal point of a converging lens. Describe the image. Do the same for a pencil sitting on the parallel axis behind and in front of the focal point of a diverging lens.

Homework Statement A boy skateboards down a curved playground ramp. If we treat the boy and his skateboard as a particle of total mass m = 25:0 kg, he moves through a quarter-circle with radius R = 3:0 m. He starts from rest at point A and there is no friction. (a) Find his speed at the...

Hi, Could someone tell me if the following orbital diagram is correct for ozone? I added the bonds and lone pairs in color. Thanks in advance.

how to find displacement in vector diagram? My homework question states : "Mr. Hinsley walks north 252 m, east 512 m, south 35.5 m and finally west 256 m. What is the total distance traveled? What is his displacement?" I got that the total distance = 1096 m However i am having trouble...

Calculate the number of elements in A1 U A2 U A3 if there are 97 elements in A1, 997 elements in A2 and 10098 elements in A3 in each of the following situations: (a) The amounts are pairwise disjoint, i.e. , too . (b). (c) there are 10 elements in common for each pair of volumes and 4...

I need to determine what type of covalent bond SiC2 (silicon dicarbide) and so creating the lewis dot diagram is helpful. I know I have 12 electrons available but I can't seem to draw it :/

Hey PF, I'm just being stupid today, because I can't figure out the way HR diagram is constructed, hope you guys can help. So suppose that you complete an observation in several different filters, and you need to work out the luminosity and temperature for each object in your field of view...

The attached image shows a diagram of the problem. I am trying to calculate the Compressive force in the piston (B). Would the methods shown work for finding the Comp Force? Thanks

A hand supports two books, ma and mb, with ma on top. The hand accelerates the books p and to the right, with a pushing force directed 64° above horizontal. Assuming the upper book does not slip, draw a free body diagram for each book. My attempt:

Hi All, I am an old dog, and rusty propeller head. I am having the most difficult time figuring out the forces on a pulley system I am working on. Can someone please review my sketch and tell me if I am even close. I would accept any suggestions and direction. Much Obliged -Steve

Homework Statement I have found the question I am having trouble with here: http://www.chegg.com/homework-help/questions-and-answers/block-mass-m-rest-surface-incline-adistance-h-10cm-base-height-incline-ish-50cm--coefficie-q218123 Homework Equations See below The Attempt at a Solution After...

Please see attachment. 1. "Now the 2s orbital and two of the 2p orbitals of B hybridize to form a set of three equivalent sp2 hybrid orbitals." The notes says. Can someone tell me why are there two 2p orbitals in B? I thought electronic configuration of B is 1s2 2s2 2p1? 2. What does the...

Homework Statement An 82 kg couch is being pushed with a force of 56 N at an angle of 40 above horizontal. If the coefficient of friction between the couch and the floor is 0.051, what is the acceleration of the couch? Homework Equations The Attempt at a Solution

Homework Statement Require various values from cantilever beam analysis including Bending moment K stiffness 2nd moment of inertia Max stress Homework Equations Shown belowThe Attempt at a Solution Here is my attempt at this question but I am unsure about units and therefore my answers?Bending...

I was wondering how you incorporate an angled load into a shear force diagram? So far I've only been working with vertical loads and I've looked through my entire book without finding an example with loads at an angle, so I'm not sure what to do here. I know I have to end up at 0 so I see I...

Why can $H = \left(\ell - \frac{b}{\sin\theta}\right)$ where $\ell$ is the length of the rope. (everything is frictionless.) http://img690.imageshack.us/img690/579/pulley.png

I was studying the twin paradox (of Einstein special relativity) and everything was working well until I get to the traveler's spacetime diagram. First let me introduce the paradox for you to understand the diagram. Pam is the twin sister of Joe. Pam goes out Earth in 2007 in a spaceship...

Homework Statement I am having trouble understanding the direction of a friction force in a sample problem from Engineering Mechanics, Meriam & Kraige. I will attach a picture for no confusion. http://i.imgur.com/0EdCofi.jpg The Attempt at a Solution Consider only the top...

I need one small input to switch on a slightly larger circuit permanently, until I cut the power off or until I open the switch. Relays seem a bit expensive and intended for higher voltage applications than I require. Is there a way to swap the relay here with transistors or something?

The wind is blowing with a force of 48 N against a kite that Taylor is flying, so that the tail of the kite makes an angle of 24° to the ground. I am just really confused on this, I attacted the solution would anyone mind explaining it? I have no idea on how to get this

I was wondering if anyone would have a link to, or have, a diagram showing light wave diffraction at an obstacle? That is, when it collides with an obstacle, then diffracts around the corners. It's easy to find diagrams for slot experiments, but am having problems finding a good diagram...

1.http://imgur.com/d2lf8sa 2. V=IR 3. I feel like the answer should just be .012 because 1.2/100. Apparently that is wrong. If that is truly wrong. I also found I3 to be 3.25mA because 3.9 volts in parallel and V=IR

For the attached picture I need to draw a free body diagram for the structure supporting the pulley. At the fixed end (left), there would be a vertical and horizontal reaction force as well as a moment. I am not sure what the forces and moments would be for the part connected to the...

Homework Statement Is the following reaction possible? If so, by what force? Draw (one of, if applicable)the lowest order Feynman diagrams for the process. n + n-bar --> ∏+ + ∏- + ∏0Homework Equations N/AThe Attempt at a Solution This process, it seems to me, should be possible. It...

Homework Statement A cavewoman is dragging her 65.4 kg mate home, up a gentle 10° incline. The co efficient of friction for skin on oil is 0.40. What is the minimum applied force she needs to keep the neanderthal moving with uniform motion? Homework Equations ff=μFn fg=mg fnet=ma The...

Homework Statement Calculate the net force acting on each object indicated in the following diagrams. Homework Equations c^2 = a^2 + b^2 sinA/a = sinB/b = sinC/c c^2 = a^2 + b^2 - 2abcosC The Attempt at a Solution Fnet =? Fnet(v) = 8.0 N [N] + 10.0 N [S] = 10.0 N [S] - 8.0 N [N]...

Homework Statement We need to design the cross section of a beam to make it suitable to carry a uniformly distributed load. The beam is held up by 4 ropes which are shown on my diagram as R. In the same attached picture I have the shear diagram and the bending moment diagram for this...

The following diff. equation describes the functionality of a system with respect to time. However, it is not known how the system will behave when stimulated. Apply a forward Laplace transform to determine damping ratio and pole zeros. Plot a pole zero diagram and comment on stability. d2y/dt2...

Would it just be the same as with two electrons? (or any other pair of particles with the same charge) I'm kinda in two minds, I suspect that is wrong because wouldn't the fact that they attract each other (instead of repelling) means that the diagram would be drawn differently?

Homework Statement Suppose a monatomic ideal gas is changed from state A to state D by one of the processes shown on the PV diagram (attached). a) Find the total work done on the gas if it follows the constant volume path A-B followed by the constant pressure path B-C-D. b)Calculate the total...

anyone know how to read a Nilsson-diagram? I have a Np, z=93 atom and trying to see the proton diagram. How to see the deformation? I start with the 82 lvl in the diagram and count upwards., 2 protons per lvl. But wouldn't it be the same amount of lines up to the ground state 5/2+ lvl of...

Hello, I am trying to compute feynman diagrams with the feynman rules but I encounter some difficulties... Since the gamma matrices, spinnors, etc do not comute, the ordering of the different factor from feynman diagram has an importance. Is there some rules that say where to begin and in...

Homework Statement Let S = {2,3,4,5} and consider the poset (S, <=) where <= is the divisibility relation. Which of the following is true? 1. 3 is a minimal element 2. 4 is a greatest element 3. 2 is a least element 4. Both 2 and 3 Homework Equations The Attempt at a Solution My answer: 1 In...

I'm reading something which highlights the Feynman rules for QED, and it talks about what happens if you go along a fermionic line. For example this picture: http://wikipremed.com/image_science_archive_68/010601_68/170750_298px-ComptonScattering-u.svg_68.jpg According to these notes, there...

Do Brown Dwarfs appear on the lower right hand "tail" of the main sequence of the H-R diagram? Or are they separate from the main sequence? The location here: https://en.wikipedia.org/w/index.php?title=File:HR-diag-instability-strip.svg&page=1 appeared to show them in that location, but...

Hi Is anybody in the house that can help with circuit diagram of an active power filter for mitigating harmonic current.

Homework Statement A Spaceship is moving with speed ß=4/5. Its length at rest is 1sec. A light is turned on at the rear of the ship, reflected back from a mirror at the front. a.) How long does an observer at rest say it takes for the light to return to the rear of the ship (total round...

I understand how to draw a CMOS circuit but I am not so confident if I do it right. I need someone to check if I draw them right. As for the second one which is a XOR gate, I am not sure at all on how to draw it since there are both the 0 and 1 inputs in the circuit.

Homework Statement A ring of mass M hangs from a thread, and two beads of mass m slide on it without friction. The beads are released simultaneously from the top of the ring and slide down opposite sides. Show that the ring will start to rise if m > 3M/2, and find the angle at which this...

[SIZE="4"]So I derived this equation for the net force/acceleration of a motorcycle on a flat surface. I believe this equation could practically be used for any rolling object. ƩF = Fp - μ*Fn - FD Where: FP is the force of the bike acting against the ground, tangent to the ground FD =...