Diagram Definition and 1000 Threads

Homework Statement Find V_x in the circuit. Homework Equations \displaystyle{\sum V_i=0} The Attempt at a Solution I tried to add all of the voltages and label the 2 ohm res V1 and 1 ohm res V2. Then I did: V_x+V_1-15+V_2+2V_x=0 3V_x+V_1+V_2=15 but then I couldn't find any other...

Block A, with weight 3w, slides down an inclined plane S of slope angle 36.9 ∘ at a constant speed while plank B, with weight w, rests on top of A. The plank is attached by a cord to the wall (the figure (Figure 1) ). Part A Draw a diagram of all the forces acting on block A. Draw the force...

Draw the shear and moment diagrams for each of the three members of the frame. Assume the frame is pin connected at A, C, and D and there is a fixed joint at B. Please i need help with this .. would be great if anyone can help

Homework Statement At time t = 0, a spaceship leaves Cape Canaveral (x = 0) at speed 2/3c, heading directly upwards (+x direction) toward a satellite in orbit. The satellite is located a distance 2 AU (see footnote2 if you forget what that is) above the earth’s surface. When the ship...

Homework Statement Draw a motion diagram for each motion described below. -Use the particle model -Show and label the velocity vectors 22) Galileo drops a ball from the Leaning tower of Pisa. Consider the ball's motion from the moment it leaves his hand until a microsecond before it hits...

What forces are acting on the hoist system, and where are they acting on it? The only ones I can think of are tension (from the string) and weight (of the hoist and of the man). http://tinypic.com/r/w6tx0j/5 Thanks in advance!

On page 403, diagram 12.1 (b) of Peskin and Schroeder, does anyone know why the coupling constant at first increases to the right, and then all of a sudden decreases to left until it reaches the fixed point zero? According to equation 12.28, as b→0, the coupling decreases monotonically. So...

Homework Statement Make a Full Wave Rectifier Circuit(With Capacitor Filer), Clipper Circuit, Voltage Doubler, and Zener Regulator circuit. Can someone help me with this?

Homework Statement A car and a trailer are connected by a joint. The car and trailer system are on a inclined place at a gradient of 8 degrees. The rolling friction coefficient along with other vehicle parameters are given.We are asked to draw the free body diagrams of the car and trailer...

IB24 1202 2000 (a) $E\cup H = 88-39=49$ and since $32+28=60$ then $b=60-49= E\cap H = 11$ so $a=32-11=21$ and $c=28-11=17$ hope this ok before (b) and (c)

(a) since $n(U)=120$ and the intersections showing $8,7$ and $4$ added is $19$ then $\displaystyle\frac{19}{120}$ is the probability of studying exactly $2$ languages (b) since $n(J)=35$ then subtracting $8,5,7$ would be $15$ so $\displaystyle\frac{15}{120}=\frac{1}{8}$ would be probability of...

Hej Guys, I am just wondering. See the picture. If I put 5kg on the right the water lever increases and the new water level on the left should be as much higher as 5kg volume of water. Its so obvious isn't it? So if it is obvious can you please tell me that why it is possible that in a...

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(a) the shaded hopefully shows $(A\cup B)'$ (b) (i) if $(A\cup B)'= 21$ and $n(U)=36$ then $n(A\cup B)=15$ but $n(A)+n(B)=17$ so $n(A\cap B) = 2$ (ii) $P(A\cap B)$ not sure but guessing $2:17$ (c) not sure what "mutually exclusive" means but presume it has to do with the overlap...

https://www.physicsforums.com/attachments/1163 well first want to see if i completed the tree diagram correctly text in the boxes are mine.

Here is the question: I have posted a link there to this topic so the OP can see my work.

Part B the indeterminate question. Divided the question into 3 Parts Moment due to UDL M = 2x4x2 = 16 Kn EItab = Marea . Xa = 0...

Find a Venn diagram containing three sets A, B, C such that $A\cap B\,\neq\,\emptyset$, $B\cap C\,\neq\,\emptyset$,and $C\cap A\,\neq\,\emptyset$, but $A\cap B\cap C\,=\,\emptyset$. here's my answer please check if it is right.

Another Venn diagram problem. just want to check if my answer is correct since i don't have a solutions manual of the book I'm using. Use Venn diagrams to illustrate the following. a. $\displaystyle A\cup B\,=\,A$ if and only if $\displaystyle B\subset A$ b. $\displaystyle A\cap B\,=\,B$ if...

Homework Statement Components purchased from 2 companies. Company A is 60% of total purchase with 2% defective parts. Company B is 40% of total purchase with 1% defective parts. Components from both companies are thoroughly mixed on receipt. A/ Draw a tree diagram to represent...

How do we know that the phase of I1 is faster than I0? And how do we know that I3 is faster than I2? How do we know that I2 is the slowest of them all??

The question as follows: Hypothetically, there are 158 grade 12 students at FLC High School, 92 have enrolled in Data Management, 71 have enrolled in Advanced Functions, and 40 have enrolled in Calculus. The math students include 14 who are taking both Data Management and Advanced Functions, 18...

What is difference between diagram monoatomic and diatomic ?

On a (T,P) phase diagram, what is meant by the pressure at each phase for the substance? Chemically speaking we are only usually dealing with "gaseous" pressure (i.e. that exerted by the gases), but only when the substance is in (one of the phases in) the gaseous state or supercritical fluid...

Is it possible using only a straight edge and a compass to construct a Venn Diagram or a pair of overlapping circles in which the area of the lune of each circle is equal to the other and to the area of the overlapping region? (I've worked out most of the mathematics from calculating the area...

Here is the question: I have posted a link there to this topic so the OP can see my work.

It ran in Science News after much calculation the idea shape for a column to resist buckling was solved. It is a slight barrel shape.

Homework Statement Describe the forces acting on the shaft AB Homework Equations The Attempt at a Solution I've ignored the bearings for now... but I know each of them has 2 forces, 1 in the radial direction and the other in the tangential direction ... Anyway, this is my diagram (sans...

Homework Statement Hello everyone, I am having difficulty with something that should be very basic knowledge for most engineers here. I cannot see how this trigonometric relationship is being made from the phasor diagram I attached... I remember the SohCahToa rule, but it's just not...

I was curious if anyone is aware of anything resembling a mathematical map, or learning tree. By this I mean a diagram that illustrates the sequence in which one must learn particular topics. I ask because I find myself encountering topics (today it was finite element method) and clicking the...

I would like to have a nice picture/simulation of the Earth - Apophis encounter on April 13th 2029. I found this applet http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=aPOPHIS;orb=1;cov=0;log=0;cad=0#orb but it seems to produce too great error for the time of encounter - the minimal distance much...

Homework Statement I was creating a stress-strain curve for a soft aluminum alloy (as stated in problem) and was looking to find the ultimate stress and ensure my units were all okay. I have attached a screenshot of my graph. And a separate screenshot with the formulas. Homework...

Let's consider a stationary ball lying on the floor. The weight of the ball acts downwards and the normal reaction acts upwards. They are of the same magnitude but not of the same type. So normal reaction is the reaction to what, if not weight ?

Homework Statement Sketch the locus of points in the argand diagram defined by z: arg (z-1) - arg(z+1) = ∏/4 Homework Equations The Attempt at a Solution By simple geometry i worked out that at a point in the x-y plane, the angle subtended from that point to -1 and 1 must...

The answer I got was: If I'am wrong please explain the correct solution and explain your reasoning thanks sarah (Sun)

hello guys, Its my first question here i hope i will have enough help i am the newbie here but i like this website already :) my question is plot diagram of a 3phase voltage inverter for asynchronous motor driving. i tried to find it but couldnt. thank you from now :)

Hi all, This is not homework or coursework. I am not sure whether this question would be classed as homework or coursework because it is neither. I am using the AQA Physics A AS textbook and attempting exercise 12.2 on page 177. In I am stuck on question 4 and I have absolutely no idea on...

Hey I have to find a diagram that shows the difference in wavelength intensity between a blueshift and a redshift. I've searched for a while but all the diagrams I find are pretty awful. If anyone knows any that decent ones would you mind linking it below? All I can find is the colour...

Homework Statement Reference the Cu-Zr phase diagram. If you make the alloy CuZr and heat it to 300°C, what percentage of the material will be Cu10Zr7 and what percentage of the material will be CuZr2? Homework Equations Phase diagram attached. The Attempt at a Solution I used the lever...

Homework Statement A man is on an elevator - Draw a FBD of the man if the elevator accelerates upwards - Draw an FBD of the man if ele. accelerates downwards Homework Equations F=m*a w=mg The Attempt at a Solution My FBD For the first one "elevator accelelartes upwards" means...

Suppose we have a spacetime diagram like this: Red lines indicating light travel from the moving object to the observer. Object is moving at the speed of 0.8c. At this speed we have: Lorentz factor 1/√(1 - v2/c2)=1/0.6=1.66(6) Relativistic Doppler effect √((1 + β) / (1 - β)) = 3 My question...

Homework Statement The potential difference across a circuit is given by the complex number V=40+j35volts and the current is given by the complex number I=6+j3 amps a) sketch the appropriate phasors on an Argand diagram. b) Find the phase difference between the phasors for voltage V and...

Homework Statement Consider the following PV diagram of one mole of a monatomic gas: The units are in atm and litres. Find the change in internal energy, heat, and work for all 3 processes and for the cycle as well. Homework Equations PV = nRT ΔU = Q - W ΔU = (3/2)*R*ΔT Q = (5/2)*R*ΔT...

Homework Statement Can you check if the values and labels are correct Homework Equations The Attempt at a Solution

Consider a situation where we want to combine spacetime diagrams of Alice and Bob, where Bob is moving at a speed of 0.4c to the right (positive x direction). If we draw Alice’s xA axis as horizontal and tA axis as vertical, answer the following questions. What is the equation, written in...

I have no doubt that this diagram has a specific name, and that it appears in Geometry texts. I don't now the name, or what text it may be in. It's plane Geometry, and it shows a definite relation of the radius of a Circle to the Line of it's Circumference. I may tie it into the thread on my...

Are the two circuits attached the same? "Circuit diagram" is the original schematic file, and "circuit" is the one I tried creating online. Are they the same? https://www.physicsforums.com/showthread.php?p=4384222#post4384222 I am doubtful of the overlapping of the wires and also the...

Homework Statement Refer to the attached binary phase diagram. Substance A has a melting point of 600 °C and B has a melting point of 1200 °C. A mixture of 70 weight percent B and 30 weight percent A is held at 950 °C for a long time - long enough to reach equilibrium. a) Determine the weight...

Hi all, I'm doing an engineering course and have a question that's kinda stumped me. I'm not going to post the actual question as i prefer to try and work it out myself...I've managed everything else so far,,,just this one is proving a bit of a noggin-scratcher...I just need a few questions...

Homework Statement I am wondering how for determine the central atom's orbitals from the point group character tables described by group theory. For example CO3^-2 (D3h) Carbon's (central atom) p-orbitals are described by a1''+e'. The s-orbital is a1' Homework Equations The...