Drawing Definition and 539 Threads

Hey guys, how would I show that a = g sin(alpha) for the following diagram?

Homework Statement can anyone help me:smile: :i need a construction drawings for : 1-Types of Guide ways and wear compensation methods. 2- Cross Carriage of the center lathe with the tool post. please answer me as quick as you can:rolleyes: Homework Equations The Attempt at a...

Homework Statement i want to draw a level curve for the following but I am having some trouble. x-y^2/x^2+y Homework Equations The Attempt at a Solution I know I'm supposed to set c = x-y^2/x^2+y, but i can't find a way to set y in terms of x and c.

What are http://www.biconet.com/birds/GIFs/stealth/acc/cableTensioner2.jpg" called? I need to order some but my brain cannot recall the technical term and google can't seem to interpret what I am trying to find.

A ball is hanging from a long string that is tied to the ceiling of a train car traveling eastward on horizontal tracks. An observer inside the train car sees the ball hang motionless. Draw a clearly labeled free-body diagram for the ball if the train has a uniform velocity. i drew two...

The problem statement, all vaA ball is hanging from a long string that is tied to the ceiling of a train car traveling eastward on horizontal tracks. An observer inside the train car sees the ball hang motionless. Draw a clearly labeled free-body diagram for the ball if the train has a...

Hi there, I am thinking a question from a book about drawing ten cards from 52 cards. The first case is drawing ten cards, having 7 cards of a club, 1 card of a heart, 2 cards of a diamond. The order doesn't matter, so the total number of possibilities is C(13, 7)*C(13, 1)*C(13, 2) =...

Homework Statement A person is holding onto 2 separate rings and each at angle is 85 degrees. find the tension in each rope. The mass of the person is 70kg. so we know the mass of the person, and the angle of ropes, i should be able to figure it out by looking at a FBD but i don't know how the...

There are 7 balls in box--red and white. What is probability of p-th drawing is red? {p=1,...7} Condition:return of previous drawing and not returning of previous drawing. Please help me these two conditions please Thanks in advance

Homework Statement Given a = <1,2,3> and b = <1,-1,-1>, sketch the collection of all position vectors c satisfying a x b = a x c Homework Equations The Attempt at a Solution I've calculated a x b = <1,4,-3> and Defining c = <x,y,z> I found a x c = <2z-3y, z-3x, y-2x>. I want to...

Homework Statement An urn contains four colored balls: two orange and two blue. Two balls are selected at random without replacemen, and you are told that at least one of them is orange. What is the probability that the other ball it orange? Homework Equations Now, we have been...

I'm working with an instructor at the local community college to fix a bug in my first project, but he asked me to give him a schematic to look over before we meet in person. I know what resistors and the other simple stuff looks like, but I don't know the symbol for ICs and VRs. Since the...

Hello I hope this is the right forum to ask the question: I have this diagram of ak47 with the rifle parts marked. They are all numbered and listed in the legend of the diagram. I can not quite figure out what the letters 'V' and 'T' next to some of the numbers are supposed to stand for. I...

Protein structure drawing method I want to know the proper name given to this particular method of drawing proteins, RNA and Genes. I have two examples; If you look at the Wikipedia page for tRNA, they show the Tertiary structure of tRNA like this...

Which direction they allow a current to pass in this drawing? This or that? http://img819.imageshack.us/img819/820/diodessss.jpg

I read online, that if you have a deck of 60 cards, and you must draw seven, the probability of getting a specific card is 7/60. What I don't understand, is why isn't this probability equal to: (1/60)+(1/59)+(1/58)+(1/57)+(1/56)+(1/55)+(1/54)? Both answers round to 12%, but this one gives...

Homework Statement draw an argand diagram of the complex voltage v at t=pi/1800, also how do i obtain the instantaneous voltage Homework Equations i = lcoswt The Attempt at a Solution well so far i have a straight line

Dear fellows I need to draw a graph of a complex function in matlab, but could not do so, can you please help me in this issue?? I have mentioned each and every constant required for function(complex function), y1=1.9417+3.5012i; y2=1.9417+3.5012i; y3=4.7348-1.4837; y4=4.7345+1.4837...

Homework Statement I have just started learning C++ in my school. Teachers have started with teaching us to make flowcharts. My teacher gave us a question:- "Draw a flowchart to read three numbers from the user and print the larger one." Homework Equations The Attempt at a Solution...

Hello, Can anyone tell me how to draw the structure of nylon 5-12 or what site could help me with this? Thank you! -N

drawing fot physics thesis? there is some software OF FREE ACCESS, for drawing and graphics in my thesis of physics?

Homework Statement This question is suppose to be solved at the Math 12 Principles level: Suppose there are 5 white golf balls, 3 yellow golf balls, and 4 orange golf balls in a pocket of a golf bag. Three balls are randomly drawn, and not replaced... What is the possibility of drawing 2...

Hey there, this isn't a homework / coursework question so I didn't think it should be posted in that section. I can't seem to find a source which explicitly tells you how to determine which bosons are used in reactions. I understand how to work out if a reaction is legal or not by using charge...

I recently learned about r-c circuits and was wonderring that if Earth can provide electrons then why is it not used as a source of charge? Will the below circuit be successful in drawing charge? .......... __________ (Isolated Positively Charged...

ffff

Homework Statement Consider a uniformly charged half spherical shell. The total charge is Q and the radius is R. a) Calculate the electric field as a function of z for – 5R < z < 5R. b) Draw equipotential curves in the xz-plane for – 5R < x, z < 5R with at least 8 equallyspaced curves...

Hello everyone, :smile: At now I know there are these programs to draw circuits and simulate them: LTspice, CircuitLogix, Multisim. I am beginner to these circuits and don't know much how to use such technical programs. So which program will you recommend me to use? I want it to have...

I need to draw a frequency- magnitude (bode) plot of this circuit: Firstly I need to find the RC but I don't have a clue. It's meant to be 1ms, and I guess that's from 10k * 100nF BUT why is the 20K not involved? Thanks Thomas

I need to find the shear center of the following cross section, but to do so i need to be able to draw the shear flow. Does anyone know how you would draw it for this case and why? It seems to be pretty easy until you get a complex cross section like this. See cross section here...

If I have a molecule of pb2SO4 for example, how would I draw that? What are the rules that tell me what attaches to what? When it's only 3 or 4 atoms, it's pretty easy to draw them, but when it's more than that, I have no clue what to do.

Hello to all. I'm having a few problems and would love to know how to do the following. 1. f(x) = 3x^2-8 2. Find the function's zeros, local max/min and the function's behaviour 3. My attempt at drawing the function ended with a downward curve intercepting at y=-8, x=0 But a...

Hi! I would like to make briquetting press of stalk material. I think it can be simple mechanism with hydraulic drive. If hydraulic cylinder diameter is 60 mm and circuit pressure of tractor 200 bar force from cylinder can be 56000 N. Necessary force in pressing cylinder is approximately 200000...

Dear all, i want to draw the Mhor's circles for various orientation agles on a same axes

Homework Statement Draw the electric field lines and equipotential lines for the electrode configure. Assume one of the parallel plate is at a positive potential and the other one is grounded. Homework Equations The Attempt at a Solution I know the electric field lines and...

Hi. Some books explain tides as a result of the gravitational pull of the moon with an exaggerated drawing like A below. It seems to me that A is not correct, but B and C are more like it. Because the moon pulls all water towards it, not just one side. Which is correct and WHY?

Homework Statement Names of 8 people (4 married couples) are written down to equally sized papers. Two carbilds are drawn. What is the probability of drawing a married couple? (it is not specified if the cards were drawn at the same time or one-by-one) Homework Equations na The...

Homework Statement I have attached the problem and all my work. If someone can check my work for part a, that would be great. As far as part b, I need the most help here. Finally for part c, I think my work so far is correct, but I need help to graph it. Thank you in advance. Homework...

Hello everyone, I was asked in a physics exam to draw a pv digram that consists of 3 process as below: 1) isothermal expansion 2)Isobaric compression 3)Adiabatic compression whenever I try to draw it I come up with a really untidy diagram so can anyone help please !

Vendor wants drawing in ***.dwg. I have AutoSketch 9 which doesn't save line widths when saving to ***.dwg. Purchased TurboCAD 17 which is too complicated for what is being done. AutoCAD Light is too expensive. What drawing program do you use for simple 2D drawings?

Homework Statement One mole of an ideal gas at an inital tempreature of 300K and pressure of 4 atm is carried through the following reversible cycle: a) It expands isothermally until its volume is doubled. b) It is compressed to its original volume at constant pressure. c) It is...

I have some question related to vectors. 1)How will you find a vector(A) if you given another vector(B) in +x-direction to give a resultant(R) at θ(any degree)? 2)A child is holding a wagon from rolling straight back down a driveway that is inclined at 20° to horizontal. If the wagon...

Homework Statement Draw free body diagrams: A rectangular block being accelerated on a horizontal, frictionless surface. A skydiver who had just jumped from a plane and hasn't reached terminal velocity. A cube being accelerated up a 30° incline with μk > 0. A pendulum bob that has just been...

Homework Statement There are m different buckets of marbles where each bucket has a different number of colored marbles (m[i]). The total number of marbles is the same in each bucket and is K. There are K individuals who walk past each bucket and pick 1 marble out of each one (so all...

Is their a method for predicting the molecular shape of molecules without drawing the Lewis structure? I am preparing for an ACS exam and would like to try to save some time on these problems. I think I could determine the steric number by counting the total electrons available, and...

Homework Statement Hi all, Is there anyway, meaning by use of equation to determine how we should draw a temperature entropy graph? I understand that is the equation for entropy for ideal gas transformation: \del S = nC_vln(\frac{T_f}{T_i}) + nRln(\frac{V_f}{V_i}) But i don't seem to be...

Homework Statement Sketch the element for the stress state indicated and then draw Mohr's circle. Given: Uniaxial compression, i.e. \sigma_{x} = -p MPa The attempt at a solution Below I have the sketch and a partially complete Mohr's circle...

Homework Statement Im having difficulty drawing a specific graph. I am not entirely sure how to explain my question/ the graph i need to draw so i think the best way is to provide a bit of my code and explain using it the graph using it... the code below gives a read out of the energy...

Homework Statement Hi, I'm having trouble conceptualizing how to draw a Velocity(Or position)-Time Graph where more than One dimension is covered. We haven't really covered this in class, but its giving me trouble. The concept is: Acceleration is negative when changing direction(This was...

Homework Statement Draw each of the following H-bonded structure (a) (HF)2 dimer; (b) (CH3OH)4 cyclic.Homework Equations The Attempt at a Solution I truly don't know where to begin. I started by searching about dimers and found a http://en.wikipedia.org/wiki/Dimer_%28chemistry%29" but that...

http://img268.imageshack.us/img268/9...ingdrawing.jpg How can I tell whether this is third or first angle projection? What is the big line at the top that the red arrow is pointing at? Is an external thread used where the orange arrow is pointing at?