Homework Statement
Why figure area is defined as defined integral? i have signature
P=\int\limits^b_af^{\prime}(x)\mbox{d}x=f(b)-f(a)
what is a prove of this signature? I have other signature:
P=\lim_{n\to\infty}\sum\limits^n_1\left(x_{i+1}-x_i\right)f\left(x_i\right)
how it can be proved...
Hi all.
i am integrating in MATLAB and plotting the results in a y-vertical and x-horizontal system.
where x and y symbolize j and i of a table. I have to re-label the y-axis, so instead of a 0 to 100, it should be 100-0. Is it possible to do that or does anyone have any idea or has any...
Hello,
I was wondering if it is possible to write functions in Latex to place figures in a constant way during the whole document. What I had in mind is to do it in 'a MATLAB way', for example:
In the document itself, you could call the function and specify the figures and the caption like...
an unpressurised cylyndrical storage tank has a thin wall of 5mm thickness and is made of steel with a maximum strength of 400Mpa in tension
the tank radius is 3.75m
the tanks height is 20m
(the tank is standing on its base like a tower)
Determine the maximum height it may be filled with water...
hi good day everyone,
Typically i have a 300mm height, 80mm diameter cylinder filled with 400ml hydraulic oil. It connected to 2m length pipe via 12mm diameter exit. Density of hydraulic oil is assumed to be 900kg/m^3. My task is to release the 400ml hydraulic oil in 10seconds. So in this...
Homework Statement
Let Sn be a convergent sequence and the limit of Sn > a. Prove that there exists a number N such that when n > N implies Sn > a
Homework Equations
sequence definition of limit
The Attempt at a Solution
This one does not seem to have a point to me. By...
i am trying to verify the two identities listed below:
cot(-x)cos(-x)+sin(-x)= -csc x
i started out as:
cos(-x)/sin(-x) cos(x)-sin x, then got it to cos^2 x/sin x - sin x. I thinking i am solving this correctly but I can't figure out the next step to get -csc x.
sin^4 x + (2 sin^2...
I would like to insert a figure into Latex. I have taken the figure from wiki and saved it on Paint.
How do I save it as an eps file? As it needs to be saved as this type to enable me to insert it in my Latex document.
Thankyou
I have to implement the following figure in a programme I am writing but I actually don’t know if there exists an analytical equation describing it. Before I had my problem propagation like a rectangular box, but this might give a better approximation. For your information I am writing a...
Triple Integrals
I am currently taking Calc 3 at college and I ran across a small problem with this one triple integral I am trying to work out (The problem is written as Example 1 in the book work document· So far I have had no luck in finding someone who could help me. If you can't help me...
Hello there! I am in a class of signal and communication systems and found this symbol:
‹[·]› But I can't figure what it means, teacher told us to research it. Been reading books like crazy and can't find anything. Hope you can help me.
I put a picture of how he used it, if that helps you.
1. A ball weighing 520g is thrown straight up at 6.0m/s
a) What is the initial momentum of the ball in N.s
2. p=mv
=520g(1kg/1000g)(6.0m/s)
=3.12
=3.1 N.s
I don't see how this is correct because it takes kg.m.s^2 to create a Newton. There is none here.
Then we go on to...
I am trying to measure a concrete structure to compute the surface area.
I have included a sketch of the structure with the dimensions that I have measured. This is part of a drainage canal bank where two canals intersect. The banks along both canals are paved with concrete. I tried to...
Homework Statement
\int^{\infty}_{-\infty}(1/(a^{4}+(x-x_{0})^{4}))dx
Homework Equations
The Attempt at a Solution
i let u = (x-x_{0})^{4}
but have no idea what to go from there
Homework Statement
A figure skater during her finale can increase her rotation rate from an initial rate of 1.14 revolutions every 1.86 s to a final rate of 3.13 revolutions per second. If her initial moment of inertia was 4.46 kg*m2, what is her final moment of inertia?
Homework...
Homework Statement
The problem in which I have difficulty has been posted as an attachment. It is based on Lissajou's figure. In the given problem, the ratio of the frequency is 1:2 but nothing has been mentioned about the phase difference. As far as my knowledge goes, the corresponding...
Homework Statement
In a certain region, the Earth's magnetic field has a magnitude of 5.5 x 10-5 T and is directed north at an angle of 40° below the horizontal. An electrically charged bullet is fired north and 19° above the horizontal, with a speed of 700 m/s. The magnetic force on the...
Homework Statement
A person walks 21m east and then walks 34m at an angle 47 degrees north of east.
What is the magnitude of the total displacement?
Homework Equations
The Attempt at a Solution
I'm not sure how you would go about finding the answer:confused: Help anyone?:-p
Homework Statement
Figure 5-57 (link above) shows three blocks attached by cords that loop over frictionless pulleys. Block B lies on a frictionless table; the masses are mA = 6.80 kg, mB = 8.60 kg, and mC = 12.0 kg. When the blocks are released, what is the tension in the cord at the right?
OK the game is like this. I will tell you a story. And you should figure out what happened by asking questions. I will give yes or no answer (maybe some others) to question. Should be fun.
Story:
One morning a man was watching TV. In the TV he saw something terrible. He was so shocked and...
Homework Statement
A family ice show is held at an enclosed arena. The skaters perform to music with level 80.0 dB. This is too loud for your baby, who yells at 75.0 dB.
(a) What total sound intensity engulfs you?
(b) What is the combined sound level?Homework Equations
dB = 10log(I/1E-12)...
In free-fall acceleration, how do I figure when "g" is positive or negative?
Homework Statement
My textbook is confusing me a bit. In general, when would "g" be positive and when would be negative? I thought it was when the particle was falling downward, it was positive and when it's going...
Homework Statement
Starting from the constant-acceleration kinematic equations, write a formula that gives vf in terms of t, xi, xf, and a.
Homework Equations
The Attempt at a Solution
I tried using vf = vi + at but it was incorrect. Is there another way where i can solve for vf using the 4...
If I had a circle with diameter X and I twist the circle into a figure eight how could I calculate the diameter of one of the resulting approximate circles?
OK, so if I'm inputting 120V ac @ 1.5A equals 180W
and my output is 19V dc @ 3.16A equals 60.04W
simple subtraction says 116W is left. that can't be right can it?
am i doing this wrong or am i actually losing 116W of power?
Homework Statement
Ok, an airplane weighs 6,000 (think of the airplane as a triangle) and one of the back two wheels is stationary and acts as a pivot. The airplane is on the ground. How fast does the wind need to be blowing to push the front wheel 90 degrees from the original location...
Hello,
I want to ask how to include 2 figures at the same page in a Latex document, because when I insert .eps figures from MATLAB, each occpies one page.
Regards
Homework Statement
n Figure 7-32, a constant force of magnitude 82.0 N is applied to a 3.00 kg shoe box at angle f = 53.0°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by when the box has moved through vertical distance h = 0.150 m...
I'm in the middle of submitting a paper to the Journal of Applied Physics. When my figures are converted to pdf, they come out rotated by 90 degrees from what their orientation in the source fiel! Do I need to fix this? If so how? Please respond ASAP!
Hi,
I have this problem:
I have a main file (main.m) in which is coded a for loop (needed for some data-gathering). De data is stored in a vector.
This vector is passes to a 2nd figure (test1.m) which has an axe. Here I want to plot the data in a "real-time" mode. I do this with another...
May 21, 2009
OK math Guru's, I'm going to give you the question and the answer,
what I need from you is the easiest way to GET TO the answer.
A chef is attending a big weekend food fair. He is famous for
his egg dishes. He knows that he will need 496 eggs for all of the...
Equation Needed to Figure Resulting Kinetic Energy and Velocities from Fusion...
Homework Statement
Hey,
I am have the initial velocities and masses of nuclei involved in fusion, and am trying to figure out the resulting velocities and kinetic energies. Since this is an inelastic reaction...
I don’t know much about physics, but I was recently in an accident and I am trying to figure out approx how fast the other driver was going.
What details would I need for the formula?
I do know the object weighs 40,000 lbs (speed limit in area was 35, so I know it was going anywhere from...
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 am looking all over to try and find out how to figure out the tension that would be on each of the poles used for a zip line I am trying to build in my back yard. I would like to build it so that it can support a 300lbs person. I am not very good with math so if someone would be willing to...
Took physics in 11th grade.. ssoooo many years ago.
I remember my teacher showed us this one educational show about this one phenominon or something.. was trying to figure out what it was called..
the 2 examples that i remember in the movie were
-If you lined everyone up against a wall...
hey I'm stumped with a question that deals with finding unknown node voltages as I only know how to complete part of the problem. here is the circuit, sorry for the crude MSPaint I do not have a working scanner here.
http://img7.imageshack.us/img7/8730/circuiti.png
the answers are
v1...
Trying to figure out the gravitational attraction between two objects using Newton's Law of Universal Gravity.Need to figure out what the force is.Here is a model.If anything is in ordinary parentheses then it is an exponent.
----------------------G
--------____________|_____________400x300...
Hey folks,
I need to save a figure from my MATLAB GUI, which is just a simple plots. Because this plot is the child of a uipanel, so I just use "copyobj" command to copy the handle of the uipanel to the new figure. However, although everything is copied, the legend is not really showing up...
I can't figure out this problem!
Homework Statement
The two wire loops shown below carry current as indicated. Draw 4 arrows representing the magnetic field due to the bottom loop at the top loop. Draw 4 arrows representing the forces on the top current loop due to the magnetic field in...
Hello I'm new here and I don't know if this is the right place but I just got my "electrical engineering" book in the mail and I started to flip through it. It look really interesting and all so I decided to read some of the examples it had I figured most of them out but got to this question and...
Homework Statement
it's stated that 2.5meters separated a trough and an adjacent crest of surfae wave on a lke.
Homework Equations
The Attempt at a Solution
At first I thought if the trough to th crest is 2.5meters then i would double that to get the wavelenght from crest to...
very cool. i wonder if there's a catch:
http://www.telegraph.co.uk/earth/earthnews/4375077/Scientists-invent-2-energy-saving-lightbulb-that-last-for-60-years.html
Hello... new to the forum and not sure where to post, I see a warning everywhere lol Hope I'm not in the wrong spot.
I haven't been in school in well over a decade, but I'm the kind of guy that went out and got math books on my own because I was jonsing to do some math... it's fun for me...
I have a vehicle with some known info...
weight: 3400lbs
Speed at a specific time: see data in chart linked below
overall gear ratio: 2.922
Tire size: 25.68 inch Radius
RPM at speed: see data in chart linked below
heres the data
http://spreadsheets.google.com/ccc?key=pxiQyAOYb5vb6jOOMdoQuOg"...