Figure Definition and 590 Threads

Spring Calibration Data --> Need to figure out formula I feel like every time I post a problem here, I end up figuring it out. So, thanks for that! haha

I have an Antenna system using two patch antennas, and I'm trying to determine the SNRin and SNRout of the system. I'm trying to determine the noise figure - is there a way to do it using scattering parameters? Thanks!

I'm trying to figure out how to prove this inequality: I know it's true (by graphing), but what's an algebraic way to prove it? 1+\frac{1}{3x^2}< x \tan \frac{1}{x} < \frac{1}{\sqrt{1-\frac{2}{3x^2}}} Thanks

I am confusing on how many decimal places or significant figures we should use. When i am doing some exercise, the answers provided vary from 1 decimal place to 2or3 decimal places. I wonder do we have a standard value of decimal place/significant figure that is generally accepted? Thanks.

Due in two hours, I can't figure it out! I spent 45 mins on this Homework Statement Give the isomers of C4H10O that are ethers I am doing this on Mastering Chem and it isn't working The Attempt at a Solution [PLAIN]http://img121.imageshack.us/img121/9666/21624147.jpg I...

Say I command the following simple script: [SIZE="2"]figure; plot([1:12],[1:12],[1:12],[4:15])' 1. How can I create a data cursor on one curve that automatically creates a data cursor at the same x-axis value for the other curve without having to manually create (Alt-Click, then line up) a...

This will be slightly confusing but if you could try and hang in there with me this is a breakdown of what the formula looks like most of which i will not be able to type out V= velocity T= time M= mass P( partial derivative of V over T + V * del operator * V)= negative del * P +...

Homework Statement This is a general question... I can easily go from a matrix A to its eigenvalues and then eigenvectors but how would I go from the eigenvalues and eigenvectors to a feasible original matrix? Any thoughts appreciated!

Hello I am new to this forum and was not sure where to post some thoughts I have. First of all let me compose why I even care to consider the question of consciousness. I want to first stress I do not have an education in Mathematics or physics. Also am not a good typer. Thank you ahead time for...

I just noticed an item in Ned Wright's "News of the Universe" about a new determination of the solar system's speed. It is roughly what we've been saying, around 370 km/s in the direction of constellation Leo, but this paper determines it with increased precision...

In Srednicki's QFT book on page 63, figure 9.11, the diagram in the middle of the second row is a Feynman diagram with four external lines, two vertices, one internal line and one loop placed on one external line. It has symmetry factor 4. Does the symmetry facor stand for the 4 possibilities...

Hi guys, Need some help solving the following problems below.. For some reason, I cannot solve these darn problems..They should be really easy... ...

Hi, I have a bunch of images saved as .fig and I need to obtain the data in these files. I tried something as simple as image1 = imread('figure1.fig'); but it does not recognize the format. If anyone could help me out that would be greatly appreciated, thanks!

Homework Statement This question is a product of my own mind- Refer Figure. Suppose the value of P= 2Patm, can 2Patm fall to Patm before the liquid levels with the hole-level? In other words, can there be a liquid column above the hole?

Is this mathematical art? What kind of mathematical concepts can you see or illustrate with this figure or its elements? I see patterns, geometry, sets & algorithms. what do you see? [PLAIN]http://www.galasdeguatemala.com/data/media/159/DSCF4310.jpg Mayan weavings from Guatemala (image...

Homework Statement IF a meter stick travels at the speed of light relative to an observer, how long does the meter stick appear to the observer? show you calculations. Homework Equations The Attempt at a Solution

I am confused? Do I look at somewhere on the periodic table? For example for the noble gas items argon, radon, helium, and neon?

Homework Statement Quick question, working on a lab Just wondering how I could go about getting an average value for a series of figures with +- values. For instance 1) 1.5 ± 0.02 2) 1.7 ± 0.84 3) 1.7 ± 0.08 The Attempt at a Solution I tried enclosing the figures within...

I can't figure out why this happens with pure substances. My book is a piece of junk, perhaps someone could recommend a better book. But why does water, for example, sublime below triple-point pressures? If I'm below triple point pressure and I add energy to solid water, there should be a...

i am a former creationist that is just learning about science. I am not trying to disprove anything i just want to learn. i was hid away from science all my life growing up in a fundamentalist household and church. anway i have learned about radiometric dating and various ways scientists can...

Homework Statement First half of a trip is @ 10 MPH Second half of a trip is @ 40 MPH Avg velocity? Homework Equations (Vi+Vf)/2 = avg velocity...?The Attempt at a Solution K, this is obviously a simple question but for some reason when I do it I get it wrong, and I'm 100% sure I'm right. But...

Homework Statement I at a point in a derivation where I have the expression: A = \frac{e^{mx} - e^{2ml - mx}}{1-e^{2ml}} I have double checked my work leading up to this point, so i am confident my expression for 'A' is correct. I am supposed to reduce it to A = e^{mx} but I am...

My truck was rear ended. It has a steel and chrome bumper, the vehicle that hit it has a soft bumper, and was traveling at 15 miles per hour. My bumper showed deformation by being bent in 1.27 cm and bent up 1.5 cm. The truck which was with the brakes on, also moved forward 6 inches. The soft...

Homework Statement I am trying to attach a MATLAB figure in Latex Homework Equations The Attempt at a Solution I saved the graph as .eps instead of .fig, then i opened ghostscript, and saw that the figure was too wide to fit on the page... how can i mend this? thank you

Homework Statement The diagram below shows two vectors, A and B, and their angles relative to the coordinate axes as indicated. DATA: alpha = 42.7 degrees, beta = 60.0 degrees, A = 6.70 cm. The vector A - B is parallel to the -x axis (points due West). Calculate the y component of...

Hello. Can anyone tell me what is the "axis of figure" or "figure axis" ? This is in the context of rigid bodies, rotation, and moment of inertia.

Homework Statement "A steel cylinder of mass 2 kg contains 4.0 L of liquid water at 25 degrees centigrade at 200 kPa. Find the total mass and volume of the system." Homework Equations I know that water at 4 degrees centigrade is approximately 1000 kg/m^3. But how about when it is...

I don't know if anyone can help but I have a friend who wants to capture his waste steam and convert it to energy - that's the easy bit - the difficulty is how to work out how much energy he has in the first place. He is drying wood by heating a container to 160oC over a period of approx 40...

Hi, So this is just part of my problem but its got me stumped for days and I can't ignore it since its popping up too often in my problems. Homework Statement For A sample of 140 bags of flour. The masses of x grams of the contents are summarized by \sum (x - 500) = -266 and \sum...

Homework Statement Hi, I need to figure out the initial velocity if an object of 1400 kilograms is subjected to a friction coefficient (sliding friction) of 0.4587 for 75.6 metres, and its final velocity after being subjected to that friction is 23.05 metres per second. How do I go about this...

Hey everyone, I am trying to study some questions from the internet and i came across this one. i think this will help me heeps with my study but i just can't figure it out. can anyone els? ......The picture of the graph is in the attachment...... Using the graph above, find: a) The...

In the image [PLAIN]http://img411.imageshack.us/img411/6857/circle.png If given the diameter of the circle, as well as the required distance for AD, is it possible to find out what BC must be? It seems like this should be possible given the information, but I can't seem to find out how...

Why is alchemy not real? Did anyone ever figure out how to change base metals into gold? What is the closest anyone has ever come to this? Assuming they haven't , why can't they do it?

How do i figure out the degrees of freedom of a certain object/gas for example oxygen gas i know it's 02 two oxygen molecules - the degrees of freedom is supposibly 5 but how do you figure that out? thanks

Homework Statement So the curves are: y = \frac {x^{4}}{x^{2}+1} and y = \frac {1}{x^{2}+1} The Attempt at a Solution So first the limits of integration are: \frac{x^{4}}{x^{2}+1} = \frac{1}{x^{2}+1} (x^{2}+1)\frac{x^{4}}{x^{2}+1} = \frac{1}{x^{2}+1} (x^{2}+1)...

I am having trouble showing: <4 3 0 | p_z^2 | 4 0 0 > = 0 and <4 2 1 | x p_y | 3 1 0 > = 0 I know the usual selection rules for parity, spherical tensors (Wigner-Eckart for x,y,z) but I can't convert these two to anything I know. You could also help by telling me how to convert these to...

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...