Figure Definition and 608 Threads

Homework Statement The problem is, "A footballer kicked a ball up at 50 degrees and it landed 20m away horizontaly", assuming vertical acceleration is -9.81ms-2 how would you find the time it was in the air and the max height reached. How would you solve this? Homework Equations...

hi, this is really frustrating because I've been working on this one integral for the last 2 1/2 horus and i can't figure out what I did wrong... it's the Integral sin^2(x)/(3-2cos(x)) dx from x=0 to x=2pi I tried the substitution z=e^(itheta) plugging in sin and cos as functions of z...

Homework Statement A cylindrical tank of internal diameter 1.5m and length 2.0m is mounted on a trailer. When the tank is filled with water the combined weight is 55 kN. Find the weight of tank plus trailer with the tank full of methyl alcohol (relative density 0.789). Homework Equations...

a. What is the magnitude of the magnetic field at point a in the figure? b. What is the direction of the magnetic field at point a in the figure? c. What is the magnitude of the magnetic field at point b in the figure? d. What is the direction of the magnetic field at point b in...

In Matlab I have a for loop that plots a figure in each loop. (M = 0.85:1:2.85) I would like to put a title on the figure "M = 0.85" for the first plot, "M=1.85" for the second plot, and "M=2.85" for the third plot. Can anyone tell me how to do this? Thank you!

simple math i can't figure out! so I'm trying to do this chemistry problem...i have the answer, but for some reason i can't do the math myself... I've taken calculus but for some reason i just can't get this! i have from my answer sheet: (2 R)^2 + (2√2 R)^2 = (2 r + 2 R)^2 therefore...

Homework Statement How much heat is absorbed by a person’s hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final temperature of the water will be normal body temperature of 37°C) Homework Equations dont have any The Attempt at a Solution dont have...

I'm making a simple "thing" to test out a simple part of something much bigger I'm designing, but am not experienced enough to figure out what I can do to keep the main screw from loosening. Is it even possible to keep the screw from loosening under vibration? If so, what can I add (and where)...

Homework Statement Hello everyone New here and doing some random probability questions in prep for the GRE. I found one and I know it is simple, but I am stumped, and there is no answer online. Here it is--any help is much appreciated. Ralph is considering whether to use an umbrella...

Hello everyone New here and doing some random probability questions in prep for the GRE. I found one and I know it is simple, but I am stumped, and there is no answer online. Here it is--any help is much appreciated. Ralph is considering whether to use an umbrella. Previously, Ralph's...

Can't figure this out! Urgent Homework Statement http://img222.imageshack.us/img222/2470/63809024.png Homework Equations No Idea... The Attempt at a Solution If anyone can solve this then i will be very grateful!

This is SO simple, why can't I figure it out?? I need to figure out the length of 2 strings and L1+L2 = 4 I get to the point, using other parts of the problem that are not pertinent to this, of: 1.11L2 + L2 = 4 The answer is L2 = 1.9 HOW in the world does L2 work out to be 1.9? How...

Homework Statement A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal, and half the crowd hopes the ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 23.0 m/s at an angle of 46.0° to the horizontal...

Good day to all, 1) I find difficulty on putting two 2D graphs into one figure. If same command it is easy to do but i have different commands, the commands are listlineplot and plot...

Homework Statement energy of light with a frequency of 4.3 times 10 to the 14th s to the negative 1st Homework Equations The Attempt at a Solution

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...

Can anyone help me by explaining exactly what a figure of merit is in words?

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...

fig link...http://rapidshare.com/files/297246331/P.docx.html What is the acceleration of each body the fig explain ? please help!

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

LogeX=2loge(100-y^2)+C where X(0)=100 find C. i keep getting different ans, don't know where i am going wrong

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 hope this is the right area to ask this, but does anyone know of a good link which describes perturbation theory? Or even a good book? I have a lagrangian that is a function of the vector potential and I need to figure out the perturbed lagrangian by perturbing the vector potential. That...

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...