Graph Definition and 999 Threads

Homework Statement For a particle moving in one dimension, x vs t graph is given below. At each point state whether speed is increasing, decreasing or not changing. Homework Equations Just the basic relation between position, velocity (first derivative of position) and acceleration (second...

hi there, i am from France, so excuse my mistakes languagewise, please. We got some long-time tasks in physics because our teacher is away. One of them is really hard. I hope you can help me a little bit. Match the following graph to one of these experiments. Since the graph is very small...

Homework Statement since point P is ahead of point O, why the displacement , y , of P shouldn't be Asin(wt + 2pi/(x)) ? Homework Equations The Attempt at a Solution

How do you graph f(x) = x - [[x]]

I have to find the slope of the function g(x) = x/(x-2), (3,3) my attempt [(3+h)/((3+h)-2)] - [(3)/(3-2)] \div h got rid of (3+h) and 3 [(1/-2) -(1/-2)] \div h 0/h answer in book is -2

Homework Statement Find the maximum velocity of the particle using the graph given.(See attachment) Homework Equations Initial velocity was not given. I assumed it to be 0. In book, the solution was 55m/s^2 The Attempt at a Solution Initial acceleration was ##10m/s^2##. Final acceleration...

Can someone explain to me why |2-x| would have a horizontal translation to the right? When I've always been taught that anytime you see a [+] it will translate to the left. The graph would be a regular |x| graph but it is shift 2 spots to the right. Thanks to anyone for help

Hi! I'm a bit stumped on this computer-science-related statistics (I think that's what it would fall under) problem. It's over here: http://math.stackexchange.com/questions/796517/correlation-between-the-degree-of-two-vertices-in-an-undirected-graph/796526?noredirect=1#796526 It would be...

For b), do I really need to look at the graph to get the volume of HCl poured? Is there not a more precise way?

Question 4b: http://www.skinners-maths.co.uk/specimen%20A%20level%20papers/EC3paper/EC3sh_H.pdf I wrote out that (1)(a+b)=1 and (-5)(a+b)=-1 but that doesn't seem to work? I know you can solve it directly by substituting in the co ordinates from the graph, but is there an alternative to doing...

Homework Statement Find the area of the region. Interior of: r = 2 - sin(b) Homework Equations A = 1/2 ∫ (r)^2 dr The Attempt at a Solution I really don't have any idea how to approach this problem. I don't understand how to determine my limits of integration. The only part of the problem I...

Homework Statement Draw a graph of xcos(1/x)2. The attempt at a solution I've differentiated the equation using the product rule. This got me to: cos(1/x) + sin(1/x)/x What I don't know how to do is actually go about drawing the graph. This is also a past paper question for an exam where I...

Please see question 9ii: Paper: http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/January%202012%20-%20QP/6664_01_que_20120307.pdf Mark scheme: http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/January%202012%20-%20MS/6664_01_msc_20120123.pdf This is my...

How to determine whether a graph is connected or not?

Can someone explain to me the concept of this graph and how it works with relation to y = mx + c ? Usually the gradient is something simple but this time I have no idea... Also, the c intercept, what is the c intercept? As far as I am concerned it is 1 but what does the fact it is 1 mean...

Hmm I'm having issues with an optional problem for some review for a quiz later tonight. Determine the Quadratic Function for the Graph the points labeled are X intercepts =(-3,0) (5,0); Y-Intercept = (0,-30), Local Min/Vertex = (1,-32) It's the parabola looking problem at the bottom right...

Homework Statement for this question, i only know that E=-L dI/dt... the ans is C , can anyone explain how to get C? Homework Equations The Attempt at a Solution

As part of a Physics experiment I have to investigate how the amplitude of a pendulum bob (attached to a string) varies with the number of oscillations it undergoes. The equation I have to work with is: (where t = the number of swings, A = amplitude after t swings, A0 = initial...

How to read this expression "A graph G = (V ,E)"

Homework Statement The function y(x, t) = Asin(kx−ωt+ϕ) where x is in metres and t in seconds for (a) tp = 3.5 s and (b) xp = 3.7m The Attempt at a Solution I don't even know where to begin. I know λ = 2pi/k this is really disorienting. In the first graph, I'm given t = 3.5. A = 3 y(x,t)...

Homework Statement A head on collision between mass and mass B occurs as described in the F vs s graph below. Complete the table in the data section Find \vec{x}A Find \vec{x}B see attached page for clarification Homework Equations P=m*v \DeltaP=F*t Ek=\stackrel{1}{2}mv2 \vec{d} = \vec{v}t...

Urgent!How to find the point where Maximum Curvature occurs on graph? Homework Statement The graph(2D) is plotted from experimental data, not from a given equation and within certain limit. I want to know the x&y coordinate where the maximum curvature occur via software means, not manually...

why do we square the value of T ( time period) while plotting the graph of effect on time period of a pendulum with change in its effective length ? also while deriving the formula of T=2∏√(l/g) why do we take T^2 = 1/g. Whats the need for squaring the time period ?

Homework Statement There are n amount of wi-fi networks in a given neighborhood. For every pair that are within 50 yards, the frequency used must be different, otherwise there will be interference. How few frequencies are required so that every wi-fi network can be assigned a frequency without...

Homework Statement Homework, from Modern Graph Theory by Bela Bollobas, section on extremals: 1. Suppose that G is a graph with n > r + 1 vertices and tr(n) + 1 edges. (a) Prove that for every p with r + 1 < p <= n there is a subgraph H of G with |H| = p and e(H) >= tr(p) + 1. [Hint: Try to...

Hello all, I'm a bit stumped when it comes to formal proofs. I PART A: "Let A,B ⊆{1,2...n} be two sets with A,B > n/2. Prove that the intersection of A ∩ B is nonempty." This part I used contradiction, but didn't get everything. I assumed that if the intersection of A and B was empty, then A∪B...

Homework Statement according to my book, there's no graph for F versus I , can someone expalin why? based on my understanding it should be a straight line graph ( directly propotional) since F= BIL SIN TETHA Homework Equations The Attempt at a Solution

just see if I did this right new stuff for me the graph and typing is mine thanks much ahead

Plotting a graph of acceleration agains displacement (x) A mass of 0.3kg suspended from a spring of stiffness 200Nm-1. If the mass is displaced by 10mm from its equilibrium position and released calculate: A) frequency of vibration B) max velocity C) max acceleration D) mass...

How to graph Vab as a function of current(I)? Is there a way to do it on T1-84 plus calculator as well?

I really need help with drawing displacement-distance graph for waves. The question is in the attached file. It is Q9 c. Thank you very much.:cry:

I'm really stumped here as usual. Here is what I've managed to figure out. I'm given two equations. r=2 r=4cos(theta)I converted them both to rectangular coordinates to get an idea of what the graph would look like. I need to find either the area in red or the area in green. (In this case...

This isn't exactly homework, for which I am not posting in the homework section. I am currently doing my undergrads, and am in the second semester of my first year. I am going to give my finals which start from tomorrow, with the first subject being Electrical Circuits II. I was solving the past...

So here is the problem I am trying to figure out. This is for an Sociology Independent study, so this isn't a homework assignment, but for the greater good of humanity. ;) First a few "rules". -There is Graph A. -The x-axis is 100 units long, 1 being the left end, 100 being the right. -It is...

Homework Statement The figure shows the displacement y of a traveling wave at a given position as a function of time and the displacement of the same wave at a given time as a function of position. How fast is the wave traveling? The Attempt at a Solution I'm totally lost with...

Homework Statement I have been given three velocity-time graphs, and have been asked to use the data from these to create position-time graphs. Each graph represent a route that generally goes south. Changes in direction to go east or west and gradual changes in velocity and time to stop at...

Homework Statement I had a different problem before about this and I figured it out. I'd like to know if I'm doing this one correctly as well. Count the number of automorphisms in the graph. The graph is attached, now.The Attempt at a Solution I know I can rearrange the (a,m,b) 3! ways. I...

Calculate area D=(x,y): -1≤X≤0 0≤Y≤ X²+4x+5 I started with dA=f(x) dx ∫f(Y=x²+4x+5) [F(x) x^3/3 + 2X²+5X] higer limit 0 lower limit -1 F(0)=0 F(-1)=-3.5 F(a)-F(b) = -3,5 I don't get this ... ?? What am i missing? Regards!

I have an equation for determining the acceleration of an object being propelled by a constant power source, that is affected by air resistance: a = \frac{P}{mv}-\frac{CDpAv2}{2m} Since F = \frac{P}{v} I am trying to graph this as a velocity-time graph, however, I don't know how to do it...

Homework Statement The a-s graph given below belongs to a bus traveling along a straight road.Given that the velocity of the bus is 10 m/s when s=0, plot the v-s graph of the bus. Homework Equations ∫vdv=∫ads or 1/2(v2^2-v1^1)=(area under a-s curve. The Attempt at a Solution...

I thought I'd just quickly tell you guys why I want to graph this equation before giving it you. We're studying conic sections at the moment, and I started wondering what would happen if I let the directrix be a parabola. I looked at the instance where the directrix is y=x^2. I let the focus...

A) The graph shows V-I curves for two conductors. One is measured for a carbon resistor and obeys Ohm's law; the other is for a light-emitting diode (LED) and shows non-ohmic behaviour. What is the resistance of the carbon resistor? B) For what value of current is the resistance of the LED...

I recently wrote a program that implements a slightly modified version of Prim's Algorithm to find a minimal spanning tree and it seems to work correctly. However, I am doubtful because my prof claims that this certain tree has more than 1 solution but my program gives only one solution. Note...

Hi, this is part of an application note entitled "Low-Noise Amplifier Stability Concept to Practical Considerations" from Maxim. Could you help me with the question in the picture? Thanks. Source: http://www.maximintegrated.com/app-notes/index.mvp/id/1849...

Homework Statement Given the graph (see picture), determine: a) magnitude of impulse (max error of +/- 25%) b) direction of impulse c) mass of the object that the impulse acted on. Note that initial velocity is 3.8 m/s to the west and that final velocity is 4.8 m/s to the east. Homework...

Homework Statement Homework Equations P = dW/dt Change in work = Change in Kinetic Energy The Attempt at a Solution Since the integral of the power graph is work done in the system, and since it starts at 0, does this mean kinetic energy is the same thing? So I can probably make...

1. The problem For sake of format I attached the a screenshot of the course material I'm having difficulty wrapping my walnut around. Which is how: Total Displacement = Area of Triangle + Area of Rectangle or Δvector d = Atriangle + ARectangle or Δvector d = 1/2 (V2-V1)Δt +V1*Δt...

The graph in the picture attached describes the motion of a 500.0 g cart for the first 60 seconds of its motion. 1. Calculate how far the cart moves during the first 25 seconds of motion. 2. Indicate the time intervals during which the cart has a non-zero acceleration. 3. Calculate the...

Hi, For some reason, when I run this MATLAB code, I'm getting what looks like about 10,000 for Rf for the largest Vo on the graph, but MATLAB is giving me Rf at (Vo)max as 100,001 Any ideas? clc; clear; close all; syms Rf Rf = 0:0.1:100000; VRt25 = 18.*(10000)./(10000 + Rf)...

I recently took a test with a question like the one I have attached above. There were four line graphs (I've only included one) with four solutions (I've only included two). I do not remember the question. I am hoping someone can identify the problem, and point me in the right direction...