Graphs Definition and 655 Threads

(I apologize in advance for the abuse of the word "group" in this problem. It does not mean a group in the mathematical sense). Imagine you have n^2 objects that need to be grouped in n groups of size n each. Let's call one such arrangement an "n-grouping." You can create n-groupings in...

Draw graphs?? Homework Statement A stone of a mass of 5kg drops through a distance of 15m under the influence of gravity. Draw graphs of the work done by the stone and the power of the stone as a function of time. Discuss your results. Homework Equations Work=(force)(displacement)...

the graph of y=kx+3 intersects the graph of y=x^2 +8x at two distinct points for 'k 'equals what? to be honest I do not know where to start

Homework Statement I have two functions in MATLAB that return y1 and y2 as the solutions and both functions depend on x. I plotted them on the same graph and there is a gap between the graphs as expected (i.e they are not on top of each other). Now, what i want to do is find the difference...

Homework Statement Compute the area of the region S between the graph of f and g over the interval [0,2] if f(x) = x(x-2) and g(x) = x/2 Homework Equations The Attempt at a Solution The result is a(S) = \int_0^2 [g(x) - f(x)] dx = \int_0^2 (5x/2 - x^2) dx = 5/2...

Homework Statement r1= 1+sin(theta) r2= 5sin(theta) Homework Equations see above? The Attempt at a Solution totally stumped. usually i would set the two curves equal to each other, but i have no idea how to do that. using my ti-89's solve function just gives me a weird answer...

Hi everyone. I am familiar with the graphing of y² graph which is essentially sqrt of the graph then reflected in the x-axis. However, I am confused at the points where the y= graph cuts the x-axis. According to differentiation, the gradient of the sqrt y graph should have a sqrt y at the...

Am I correct to say that a function that is linear on a log-log graph is also linear when it is plotted on a graph using regular scales on both axes, takes a square root form when plotted with the x-axis scaled regularly and the y-axis with a log scale, and exponential in appearance whn the...

Homework Statement I have been given this equation : 4/5 X 2^x I have drawn the graph. Now, I was asked to draw the graph of y = 8 – 2x by using the 1st equation above. Can you help me in doing so? I know that the 1st Co-ordinates is (0,8) how can I find the other co-ordinate to...

Homework Statement If we have a function f with respect to t, given: h=a/n t=i*h so this means, t depends on n. I have a function in MATLAB named num.m: where n is the only input and. My question is: if i num(10) i can generate a graph of t (x axis) against f (y axis) by the command...

I have just done this experiment where i have a cart roll down a ramp and a ticker tape timer does its ticks on a tape atached to the cart. already i can make a postion (or displacement from a dot of reference)- time table. for 1.0 second going down the ramp i all ready have finished the...

Homework Statement Consider an adiabatic chemical reaction which results in the system being compressed. Assume an infinitely large surrounding. Draw a pressure-volume plot for the process. Indicate the points corresponding to your final and initial volumes o the plot. Indicate at which...

Homework Statement $\displaystyle \Large y = \ln (x + \sqrt{x^2 - 1})$ Homework Equations The Attempt at a Solution i used my graphing calc.. but that's not the point. how do i do this question? i mean, how do i find the graph of that function?

Homework Statement I need to know the units of the slope. What the slope should be. And the percent error. Pictures: http://imageups.com/files/101/456.PNG Graph 1 is function of period(1/s^2) v weight of washers(N) r=.77m mass of rubber stopper= .02kg Homework Equations f(t)=1/t^2 w=mg...

Homework Statement Plot a displacement-time, velocity-time, and acceleration-time graph for a wheeled cart that rolls down an inclined plane. Already finished the displacement-time graph, but am questioning the correctness of the v-t and a-t graphs. What should they look like? (Like d-t...

So i am in Grade 11. I have the worst teacher in the school, she cannot teach 4 ****. I need to know how to do you convert a Position/ Time graph into a Velocity/ Time graph and how do you convert a velocity/time graph into a position/time graph? - PLz if someone could help me out with...

Momentum & Net Force Question Okay, so I got the previous question I asked and I had another new question to ask so rather than make a new topic and seem like I'm spamming the forums, I just decided to edit my original post. I just hope no one replies to my old post while I'm writing this one...

Hi there I would like to plot a two/several functions using Maple on the same graph but with different intervals on the x exis. What I have at the moment is a Maple command for plotting two/several functions on the same graph with the same interval on the x exis. Thanks Amos

Homework Statement Suppose we define {x} to be the distance from x to the nearest integer. a) Sketch the graph of f(x) = {x} b) " g(x) = {2x} c) " h(x) = {x} + 1/2{x} d) " all points (x,y) which satisfy {x} + {y} =...

Homework Statement A .5 kg cart moves on a horizontal surface. The graph of vx,t is attached a) Indicate all time cart is at rest b)indicate every time interval for which the speed is increasing c)determine the horizontal position of x of the car at t=9s if the cart is located at x=2 @...

Homework Statement Three particles move along the x-axis, each starting with v= 10m/s at t_0 = 0s. The graph for A is a position-versus-time graph; the graph for B is a velocity-versus-time graph; the graph for C is an acceleration-versus-time graph. Find each particle's velocity at t = 7.0s...

Homework Statement Then identify which of the v vs. t graphs match p vs. t graph http://eport2.cgc.maricopa.edu/published/w/ea/weaver/survey/172/1/image.30092.jpg Homework Equations I'm still a bit confused on if I have successfully grasped the conversion of pt graphs to vt graphs The...

1. See Attachments 2. None 3. 1st Attachment #19 I believe that I am suppose to multiply (x-2)(x+2) but what do i do about the symmetric with an origin? 2nd Attachment I do not get what they are asking for in the 2nd and 3rd part of the question can you please explain it to me...

A.C. Circuits -- Graphs http://img136.imageshack.us/img136/5782/image64.jpg In this graph, the curve of current is larger than that of voltage...but in some books the voltage curve is above the current curve (like the one below)...Which one's correct?

I have the answers, but I don't know how to get them. The starting graph is a position-time graph of a basketball being thrown straight up into the air. From that graph i have to find an acceleration-time graph, and a velocity-time graph. Can someone explain to me the acceleration-time...

hi , i am unable to draw the graphs of complex valued functions using mathematica, please help me . Ex:koebe function. z/(1-z)^2, z is a complex number

I'm calculating absolute relative error at the moment for a practical I did. However, I've hit a brick when attempting to find a general relative error I can use because I need to gradient to find something else which also requires a relative error calculation. I have frequency (+/- 0.0005)...

the question goes like this: the first part asks to utilize simulink to obtain the graph pattern: the second part requires us to make use of laplace transform and inverse laplace transform to solve the initial value problem: the third part asks us to compare both the results...

Hello my question is how and with which methods Equations are derived from graphs,for example the graph below is for specific energy in open channel flows,and the equation to it is : E=y+(q^2)/2*g*y^2 how this equation has been obtained from the graph? if in Excel you add a trendline to...

OK, on a velocity-time graph, how does one determine the acceleration? I actually attempted to find the slope of the line and the graph here: http://www.physicsclassroom.com/Class/1DKin/U1L4a.cfm (the second graph with the rightward changing velocity) Why does it graph 4, 8, 12, 16 and 20...

Homework Statement (A) Graph the functions f(x)=x/2 and g(x)=1+(4/x) together to indentify the values of x for which x/2>1+(4/x). (B) Confirm your findings in part (A) using algebra. Homework Equations The Attempt at a Solution (A) I graphed the equations and found the answer...

Homework Statement In my Engineering Circuit Analysis I class I am in Capacitors and Inductors where they give us the graph of either i(t) or v(t) and we have to determine the graph of current or voltage depending if it's a capacitor or inductor. Homework Equations For example, v(t)=...

Homework Statement Sketch \frac{cos x}{x + \frac{\pi}{2}}Homework Equations The Attempt at a Solution hey guys, I just need help sketching this graph, I can work out the points of intercept with the y-axis however having trouble doing more than that. On a more general note, I generally find...

The "broadcast time" of a vertex v in a graph G is the number of time units it takes for a piece of information to go from v to every other vertex, provided that each vertex can communicate to only one other vertex during each time unit, and the information is transmitted in one time unit. The...

Hi. Need help with following problem: Let R=(V,E) a regular graph with degree at least 1 and odd number of vertices. Let C=Aut(R) the transitive action on the set E of R. Prove C also transitive action on the set V of R. Anyone got any idea/tips? Thanks!

can someone pls tell me how you can get the value of 'a' or the gradient in a quadratic equation by analysing the quadratic graph as a reminder the equation is y=ax^{}2+ bx + c

Need to investgate the ratio of the areas formed when y=xn is graphed between two arbirary parameters x=a and x=b such that a<b 1. Given the funtion y=x2, consider the region formed by this function from x=0 to x=1 and the x-axis. Label this area B. Label the region form y=0 to y=1 and the...

hi i was wondering if anyone knew how to introduce different populations at diffrent times on the same plot on mathematica? Say i wanted population 1 have n = 10 at t=0, population 2 to have n=4 at t=0 and then introduce a new population at t=25 so that population 3 would have n= 0 initally but...

I have a quiz and I don't know how to solve this question ? Help me This is my first post . I don't know where to post this topic . Can you move this topic into right place , Mod ?

rather urgent :(, isomorphic graphs, planar graph I need help with the following two problems: 1) Is this graph planar? 2) Are these two graphs isomorphic? I don't know what to do with these two problems, and I would be really grateful for all your hits and help. For number 1, I've tried...

Hi i was just wondering if someone could tell me how one can find the phase shift and the number of squares to move the graph over by from an equation?. We are doing cosine and sine graphs and my teacher has been away for a few days so the supply teachers haven't been really that great in...

I have a P-V trace for a wide open throttle and a part load. Is it possible to calculate the BMEP from these graphs?

Homework Statement http://i568.photobucket.com/albums/ss125/NakedNoodles08/GraphsandData-1.jpg Hello Physics Forums, i stumbled upon you guys when i stumbled within my physics work. The problem i am to put forth revolves around Hooke's law. I am conducting an experiment on Hooke's Law...

I have done these questions but I am trying to figure out if I did them the correct way. I cannot find an answer key yo check them by. Does anyone know the answers? http://cosmos.bgsu.edu/communities/research_community/MeasurementInst/pdfs/Motioneval.pdf

Drawing graphs with errors using Matlab. I'm writing my first serious report, yay!, from the measurements we made with series RLC -circuit. I'm supposed to determine the values of the two coils we used as well as their self-inductanses. We had four different circuits: R, L1 and C in series...

Hi, Is there a way of calulating the angles from the slope or coordinates of a graph. Say you have a bunch of x and y coordinates and you want to find the angles between those points at various coordinates (say every x,y ratio) can it be done? How would you go about it?

Homework Statement A road is built up the slope of a hill with a height of h meters and an angle of inclination of x. The length of the road is d. a) Sketch a diagram of this situation. Label all quantities. b) Show that the length of the road is represented by the relation d = h csc x. c)...

i can produce 2d graphs with my code but i need to produce 3d aswell, is there no easy way i can produce a 3d graph?

Homework Statement I previously left some absolute value questions which contained a few simple equations and equalities. i have a further question when it comes to slightly more complicated Absolute statements. Sketch the graph of y = 2|x-1| - 3|x+1| + 3x + 1 Homework Equations...

I am completely lost on how to convert velocity time graphs into acceleration time graphs. so far all i no is to break the velocity graph into sections/intervals and find the area. the answer i get for the area is the scale on my y-axis of my acceleration graph. but what i do not no is what...