Homework Statement
Here is an exercise I came across while studying MaxFlow / MinCut and I'm rather stumped:
Designate G = (V, E) as an undirected graph that has at least two vertices. Every edge e on this graph has capacity ce. Pick two arbitrary vertices from G and label them s and t...
Homework Statement
Hi, I just started my kinetics course a few days ago and have a few questions about how to graph this and maybe help me out with some of the equations involved, I'm completely new to this and I got this test sheet a few days ago. thanks a lot guys...
I feel terrible for even having to ask this. I'm doing A2 at the moment, and we've gone through these sorts of lessons ever since my early AS days. I'm trying to review my notes cos exams are coming soon and I did some questions, and I'm apparently doing them wrong with what the answers are...
Okay, so I'm down to the last equation.
-12/11 x 10 + 54/11 I get -66/-99. Is this right? If so how do I put it into the graph.
-12/11 x 10 = -120/110 + 54/11 = -66/99 (I think I've went wrong somewhere)
http://ncsp.llnl.gov/ARH-600/files/pdfs/III.A.4-2.pdf
For a certain fixed density (let's say 1g/cm3) different enrichment corresponds with different cylinder diameter
20% wt 12.0in
15% wt 11.2in
10% wt 10.4in
5% wt 9.6in
0% wt 8.4in
Why the decrease of enrichment result in a smaller...
Hello again :)
I am doing a question in which I have to find the mistake that is in one of these points and must change one of these criteria to make it correct. So first I am drawing a graph to get an outline of what it looks like.
-f(x) is defined on (−∞, ∞) and differentiable twice through...
Homework Statement
Fc = mv^2/r represents the motion of a simple pendulum. Describe how this data could be graphed so that the gradient of a straight line could be used to determine the velocity of the object.
Homework Equations
Fc = mv^2/r
The Attempt at a Solution
I'm kinda stumped. I tried...
Homework Statement
The problem is attached. I don't get this part. Let G = Sn be the group of all permutations of S. S is a set, so how can we permute something in a set?. Neither I know if the 4 power in the S is a typo.
Homework EquationsThe Attempt at a Solution
Hi!
I'm struggling with this question. I'm supposed to draw a graph that follows and has these features:
- Domain of f is0<x<12
- f′ is increasing on (−∞,3)
- f′′ <0 on (3,6)
- f′ is Concave Up on (6, 9)
- f has infelction point at x=9!
I don't know if I can get help because this is a drawing...
Homework Statement
If the following Force v. Displacement graph is for a 9.9kg object and it's initial velocity is 28.6 m/s the what is its velocity at 30 m?
Homework Equations
I am not certain that i am even using the right equations with this but:
W = fd
KE = 1/2mv(final)^2 -...
I`ve been able to use excel to plot the trajectory of a harmonically driven duffing oscillator for arbitrary parameters using Runge-Kutta method. I would like to do the same thing for the frequency response, but I simply can not figure out how. I am not very mathematically advanced so the first...
Homework Statement
Homework Equations
Vs=Vi(1-e^-t/T)
The Attempt at a Solution
I am stuck on B. I am not sure how I am supposed to graph Vo with so little information. Do i just use V=Vo(1-e^-t/T) and find the output voltage for each time increment that is on the original graph. So...
Homework Statement
Homework Equations
Recursion, graphs, DFS
The Attempt at a Solution
To try to solve this algorithm, I first need to find all the basic cycles in the Graph G. When I have these cycles, I can simply pick the smallest edge in each of them and add them to the set F, while...
Homework Statement
Homework EquationsThe Attempt at a Solution
This is more of a help with understanding problem. I understand a) and b), but for c), I don't understand:
1. Why is the distance from t=12-16 -20 m and not +20 m? Isn't there a positive slope? I thought this question was asking...
Homework Statement
Homework Equations
Kinematic equations
t = 18s when the velocity is back to 54km/h or 15m/s
at t = 2, V = 13.3 m/s
at t = 4.5, velocity is 1.5 m/s
at t = 1, V = 15m/s
The Attempt at a Solution
I have solved the first part and I have the time at which it is 54km/h again, but...
Homework Statement
http://m.imgur.com/tAbHL6S[/B]Homework Equations
Velocity=displacement/time
The Attempt at a Solution
I thought B at first because they start at the same position, so their relative velocities would determine their relative positions, but I guess not since the answer is...
Homework Statement
https://bb9.waukesha.k12.wi.us/bbcswebdav/pid-692070-dt-content-rid-2436419_1/xid-2436419_1
The graph above was made from acelerometers placed on a person while experiencing a bungee jump. The graphed data is not smooth because it is real data. The positive direction is...
Okay I feel really stupid for getting wrong omega for such a trivial problem.
1. Homework Statement
Find the function of e(t) = A* sin(wt + fi)
Homework EquationsThe Attempt at a Solution
A = 0.9 V
at t = 0 e(t) = -0.35, and therefore:
-0.35 = 0.9 * sin (w*0 + fi) / * arcsin
arcsin(-7/18)=...
Homework Statement
let there be ##\beta(t+\tau)^{-2}e^{-3}cos(at^{3})## where ##\beta##, ##\tau## and ##a## are constants
Homework Equations
##\beta(t+\tau)^{-2}e^{-3}cos(at^{3})##
The Attempt at a Solution
I know the graph is going up and down exponential but how can I draw it more...
The cut-off wavelength is the minimum wavelength of the X-ray emitted. But doesn't minimum wavelength correspond to maximum energy? Why is intensity zero at minimum wavelength? Shouldn't it be maximum when wavelength is minimum since ##\lambda=\frac{hc}{E}##
Homework Statement
I am given the current flowing through a 2 micro-farad capacitor in the form of a graph, and I need to create a voltage graph from this.
Homework Equations
I = C dv/dt
Q = VC
The Attempt at a Solution
The current graph is basic with a constant 4 mA from 0 to 4 microseconds...
I am so far able to find the domain, intercepts, concavity and increase/decrease. But I am stuck at finding the asymptotes for the graph.
I think there is no vertical asymptote or is there one at x=-1?
I think the horizontal asymptote is y=pi/4
Homework Statement
1. How many vertices will the following graphs have if they contain:
(a) 12 edges and all vertices of degree 3.
(b) 21 edges, three vertices of degree 4, and the other vertices of degree 3.
(c) 24 edges and all vertices of the same degree.
Homework Equations
"Theorem 1
In...
Hello,
I have been doing research with a certain biological substance and its capacitance and conductivity. The following graphs are from a computer connected to a BDS (broadband dielectric spectrometer):
I understand the fundamental units, but Re(C'), Re(C''), Re(σ'), lm(σ'') do not make...
Homework Statement
I can't understand this paper. I understand the whole incidence matrix stuff, but I don't quiet get how it relates to the linear algebra. I don't know if this is allowed to do, but I will ask you questions line by line, so basically you will read the paper with me explaining...
Homework Statement
A. Show that n^n−2/n! < T(n) by looking at how the symmetric group Sn acts on labelled trees. Use |Sn| = n!
T(n) is the number of unlabeled trees on n vertices
Homework EquationsThe Attempt at a Solution
I can't find any mathematical relation between labelled trees and...
Homework Statement
The rocket car is subjected to a constant acceleration of Ac = 6 m/s^2 until T1 = 15 s.
The brakes are then applied which causes a deceleration at the rate shown until the car stops. Determine the maximum speed of the car and the time T when the car stops.
Homework Equations...
Homework Statement
The a-s graph for a rocket moving along a straight horizontal track has been experimentally determined. If the rocket starts from rest, determine its speed at the instants s = 20m, 50m, and 70m, respectively. On the graph, S1 = 50m, a1 = 10 m/s^2, S2 = 70m, and a2 = 20 m/s^2...
Homework Statement
A small bar magnet is being slowly inserted with constant velocity inside a solenoid as shown in figure. Which graph best represents the relationship between emf induced with time
Homework Equations
ε = -dφ/dt
φ = B.A
The Attempt at a Solution
Since the magnet is brought...
Homework Statement
Exercise 0.1. Suppose that G is a finite graph all of whose vertices has degree two or greater. Prove that a cycle passes through each vertex. Conclude that G cannot be a tree.
Homework EquationsThe Attempt at a Solution
If every vertex in a graph G has degree two or...
Homework Statement
Let G be a connected graph. We say that G is minimally connected if the removal of any edge of G (without deleting any vertices) results in a disconnected graph. (a) Show that a connected, minimally connected graph has no cycles. (b) Show that a connected graph with no cycles...
Homework Statement
Prove that a complete graph with n vertices contains n(n − 1)/2 edges.
Homework EquationsThe Attempt at a Solution
The solution gives and inductive proof, but I am just wondering if this works as well.
If we have a set of n vertices or points and we try to match all...
if x+y ≥ 2 it contains all the point in the line x+y =2 and the half plane above it. but ,graph if x-y ≥ 2 then if consider a line x-y= 2 the inequality represents the line and the half plane below it . i don't understand why it represents the half line below it why not above ?
There seems to have been a major step forward in complexity research. somebody wrote a pleasant understandable piece about it in Quanta magazine.
https://www.quantamagazine.org/20151214-graph-isomorphism-algorithm/
I gave the title an "intermediate" tag because the graph isomorphism problem is...
On http://mathworld.wolfram.com/HeartCurve.html, the nicest heart-shaped curve is given by
x=16sin3t
y = 13 cos t-5 cos(2t) -2 cos (3t) - cos(4t)
There are evidently two values of t, one in the first, one in the second quadrant, where you can get a horizontal tangent to this shape. Asking...
when i was reading a supplementary notes doc from open course ware fro MIT on single variable calculus there was a description about a graphical representation of a single valued function as
" if each line parallel to the y- axis and which passes through a point in the domain intersects the...
when i was reading a supplementary notes doc from open course ware fro MIT on single variable calculus there was a description about a graphical representation of a single valued function as
" if each line parallel to the y- axis and which passes through a point in the domain intersects the...
Quanta Magazine published this article on a potentially new algorithm for graph isomorphism by Prof Laszlo Babai of the University of Chicago:
https://www.quantamagazine.org/20151214-graph-isomorphism-algorithm/
There's a reference to the Arxiv preprint here:
http://arxiv.org/abs/1512.03547v1
Hello everyone,
Is the graph ## (2^x - 1) / x ## defined at x = 0?
When I plot this graph there is no spike at 0 because 0/0 is undefined? Is the computer unable to show this? I am finding the limit as x approaches 0. From the graph limit exits but does f(0) exist?
Sehr Danke.
Homework Statement
Are the 2 graphs isomorphic?
Homework EquationsThe Attempt at a Solution
Both have same vertices, edges, set of degrees. But I failed to prove isomorphism by adjacency matrices.
Homework Statement
A particle of mass m=4.0 kg is moving along the x-axis. The particle is being acted upon by a variable single force F⃗ , directed along the x-axis. At t=0 s, the particle is moving at v_0=−3 m/s.
What is the first time t>0 when the particle comes to a stop momentarily...
Homework Statement
I have the following algorithms: Prime MST with array, Prime MST with priorityq and Kruskal with priorityq. I have to choose the best algorithm to find the minimum spanning tree on a planar graph. A planar graph has the property in which the number of edges is in O(number of...
Okay, so say we had the following situation: An object accelerates from rest to 3 m/s in 1 second. It then maintains this velocity for 2 seconds before decelerating to a velocity of -3 m/s over the span of 2s. It maintains this velocity for a further 2 seconds. The object then accelerates back...
I have to calculate Mu for the force of static friction of different shoes of different surfaces, which I was able to do. Then, our teacher said to include graphs in our lab report, however I'm not sure which graph to use. What would the axis' be and what kind of graphs should be used?
In my text, it tells me to find the eigenvectors of a 2nd difference matrix and graph the eigenvectors to see how they fall onto sine curves.
imgur link: http://i.imgur.com/oxbkTn6.jpg
My question is simple but general. What does this even mean? How did they produce this graph from the...