Issues Definition and 407 Threads

Hello everyone. Our book has a problem where we are to fill out the missing spots and its quite confusing, I'm not sure if i got this right or not. Any help would be great! Here is the question/directions: The following is a proof that for all sets A and B, if A is a subset of B, then A U B...

Hello guys, I'm new to this forum. Ah.. I'm having a problem with statics, was supposed to pass up my lab report today but was told to redo the introduction. I was told that the introduction must mention Static equilibrium->Newton ->motion->translation->force->center of mass...

I have an interesting problem: I'm moved into university and people can't join custom games I create in warcraft 3. However, people CAN join games I create in starcraft. What would cause this? How do I fix it?

hi all, I am new to the forums and am certainly enjoying my stay here (great topics and threads!) :-p Well, I just started out installing and playing around with Maple 10 today. It is a little different to use. Maybe someone can help me. I plug in this equation exactly the way it...

Does anyone know why the DVD made in our livingroom [-RW] recorder isn't even seen by my laptop's +- RW compatible DVD player/recorder? XP only sees it as an unformatted disk. It plays rented movies just fine.

Alright, so I seem to be having difficulty setting this one up. Here's the problem: http://synthdriven.com/images/deletable/help4.jpg" The way I began to go about it is as follows... \Sigma \vec{E}=\vec{E_{1}}+\vec{E_{2}}+\vec{E_{3}}=0...

[FONT="Arial"][SIZE="3"]What are the possible issues of using Quatum Foam ?

Hi I'm getting used to the FeynMF package used to draw Feynman Diagrams in LaTeX, and the hard work of learning to use the package has paid off. However, there are a couple issues that I'm having with the package. 1. Labels don't appear even when I use the [FONT="Courier New"]\fmflabel...

[SOLVED] Measurement Issues: POVM, Neumann and generalized What is a POVM measurement? How is it different from Nuemann measurement theory and what would be the most general measurement formulation? Please keep things discrete and not continuous. -KM

Sorry if this is not the right place to post this, but as of late I have been unable to see a lot of latex, all I see is "please wait while...is loading". It never loads.

We have an inverter driven 3kw motor at work that is the main drive for a piece of kit we have, it drives via a 300-1 or so gear box, you can turn the whole thing with one finger via the fan on the motor, the problem is the 3ph cable to the motor hardens an breaks down, it is the recomended...

This is rather useful. While it covers primarily materials issues in the Tokamak environment, the issues concerning the performance of materials in an irradiation environment are generic. ITER - Materials R&D - http://www.iter.org/MaterialsRD.htm In Light and Heavy Water Reactor...

Hey all, I burned a .iso of kubuntu live, i did it right because in windows the autoplay thing works and the menu of stuff to install comes up. but when i try to boot from it, no go. help? I should note that i have xp and suse on the same computer, grub is used to boot one or the...

I have two wireless mice both made by microsoft. These things always stop working. What a rip off! You have to turn the batteries and fiddle with them until they make good contact so that the light will shine brightly enough to work. This problem is the same on both of them! They also go through...

Yesterday I burnt a movie to a dvd using windvd, so last night I went to watch it downstairs in the dvd player, it turned out to be very choppy and a result of the choppiness there was a delay in the sound. I have a P4 with 512mb RAM in a new laptop. Whats the problem? Anyone else use windvd...

The Quantum Erasure experiment by Scully et al http://arxiv.org/abs/quant-ph/9903047 appears to have generated more questions than it has settled. Please look at attached figure below, which I believe is isomorphic to their quantum erasure experiment Fig. 2. Photons A and B are entangled...

As you know wi-fi is a radio signal and I'm wondering if physics can help me by determining why is my internet acting weird on me. I know about waves and nodes and antinodes and I'm wondering does wi-fi have these properties and how can i position it. In a geological perspective its distance...

It's not really homework, although that is where I encountered this first time. I had to evaluate the integral from zero to whatever of 3^x. I realized...while dy/dx of e^x=e^x the dy/dx of any number not equal to e does not follow the same pattern. It has a different formula. Same for...

My father's computer is exhibiting weird behavior. It seems not to like certain websites (for example apple.com, mcafee.com). When one tries to load one, it times out and IE displays it's page for a DNS error. What makes it worse, is a few days ago it suddenly fixed itself only to go back to...

I have been using Firefox v happily for a long time now, however, after upgrading to Version 1.5 on my laptop it has lost the ability to access the internet! Some additional info: the laptop connects to the web via a wireless LAN, firefox DOES load but displays the 'Page cannot be...

Here's the question: If: b b ∫ f(x)dx = a + 2b, then ∫ (f(x) + 5)dx = ? a a I'm thinking myself into circles... I want to say I need to take the derivative of a+2b to then find out what equals f(x) and then just take the...

Does anyone know how to do this? I have read some things about downloading and compiling things, but I just want to play dvd's. Any help is great!

Im trying to plot a 3d surface graph, but I am having trouble. I have 3 data inputs, x,y,z. I also had X and Y=Y' which are the min:int:max values. Because I only have a few points, I tried to do Z= griddata(x,y,z,X,Y) to interpolate the results. But it comes up with an error saying that not...

I'm trying to create an area mep for an image, but it's not working right. any help? <html> <head> <title>Enter through the door</title> </head> <body> <map name="amap"> <area shape="rect" coords="474,202,541,358" href="../leveltwo.htm"> </map> <center><img...

Java's "Scanner" Hello, I own a Macintosh and was trying to write a simple Java program for one of my classes. However, I quickly discovered that it appeared that the Mac does not have the Scanner ability. I get an error on the "import java.util.Scanner" line saying "cannot find symbol...

I have a question about album art in windows xp. A lot of my music was taken from backup disks and didn't come with album art, they were burnt under windows me. I've went ahead and searched a P2P network for album art and retrieved most of what I need. The problem I am having is that quite a few...

Greenspan Worries About Economic Health Friday August 26, 1:03 pm ET By Jeannine Aversa, AP Economics Writer Federal Reserve Chairman Greenspan Raises Concerns About Long-Term Health of U.S. Economy JACKSON, Wyo. (AP) -- Creeping trade protectionism and bloated budget deficits pose a...

I'm trying to reinstall windows, but on reboot I can't start from the particular CD-rom (other CD-roms do work on reboot, but I need this one). It says: Boot CD-ROM type: Non-Emulation Booting Press a key if you want to start up your computer from cd-rom... and then it hangs, the cd-rom...

I am trying to reformat my hdd when something weird happened. I have a P4 desktop and I wanted to reinstall everything on there. So I booted from the windows CD and it formatted and installed windows XP sp1... when the computer restarted, it said that some file was missing and it wouldn't start...

I shaved my head to save time/money/energy but now I think I'll let my hair grow back because of the increased risk of skin cancer and sunburns and stuff. Are there any other problems (Like that) that shaving my head could cause? (I mean that aren't appearence-related)

We have a funny problem :bugeye: In a PHP page we have used following code: onmouseover="window.status='hello'" I runned the page on two diffrenet machines both runnig win XP and both with the same IE version (6.0.29). In my surprise, on one of them, there is no status bar. But on...

Ok ppl, Just its me, Moses, that i never drink a sip of alcohol, nor i wil try for XYZ reasons.. However, i am very curios to know some stuff abuot drunk issue; and i guess others may be having some questions as well so they can put it here to get more 'expeirenced' so my first trivial...

There must be some security setting in Win2k which is blocking some emailed links from working in Outlook express. For example, the link to a PF PM when I am emailed a notification does not work. In many merchant email advertisements there are "picture button", ie click on the picture to go to...

I'm trying to read 'Wavelets on the 2-Sphere: A Group Theoretical Approach' by Antoine and Vanderghynst, available at http://citeseer.ist.psu.edu/antoine98wavelets.html. They introduce \mathbb{R^+_*}. Unfortunately, they don't seem to define this anywhere in the paper, and I've never come across...

I am given that the mass of a simple pendulum is 0.25kg, length 1m and displaced 15 degrees then released. a) max angular acceleration? b) max restoring force? for a... I vound that the max velocity is 0.817m/s \omega=\frac{v}{r} \omega=\frac{0.817m/s}{1m} \omega=0.817rad/s...

# About the laminar flow hood; when should i turn off the blowers which circulate the air? After the work or should it be on all the time? Can i have it on at the same time with the UV light? :frown:

I came across information, such as data published by The Pew Global Attitudes Project, however there didn't seem to be much statistics available (yet) on what is important to people around the world at this time. I thought it might be interesting to see what is important in different countries...

Greetings! I'm encouraged by the amount of people I see viewing this website... I'm in serious need of equation help. I'm currently taking an online physics class because of my very full workload of 5 jobs, one being full time, another being very close to that, and the rest part time. (a...

It is not a secret that US schools, institutions, and industries have always tried to attract the best and brightest students, scholars, and scientists from all over the world. In fact, the ability to continuously attract such persons plays a vital role in the prestigue of many institutions. In...

My blowdryer just died a couple of days ago. I was going to repair it myself but I was afraid of being shocked. Now I have a new one, but I hate to see the old one go to waste. Truth is, I really*emphasis* want to take it apart and see how it works. However, my new dryer's manual states "DO NOT...

Two questions: 1. What is the big deal about nalgene water bottles? Why do so many people have them? Is it their durability...something about the material? And now, to get more on topic for this forum: 2. Despite not knowing the driving force behind the fad...I bought one myself (yeah...

When I clicked on my own user name on one of my posts and was taken to my profile, I checked out the "view threads started by cepheid" link. Included in the list are 10 or so threads in the sub forum "Technology News". I never started any of these threads What's going on? :eek:

For a homework assignment I need to be able to read in a string of numbers and display them on the screen, and then use them in some calculations. How would be the best way to go about this? Here's what I have so far to give you an idea of what I need to do: int n; double a[15]...

I have been trying to install Matlab all year and i keep running into the same problem. When i try to install Matlab i do not get any error messages, but when i try to start it up, it says "initializing" for about 30 seconds then the program just shuts down. I do not know if i am having a...

My problem invloves a car with a mass of 1520kg. It's traveling with a speed of 15.0 m/s. I'm asked to find the magnitude of the horizontal net force that is require to bring the car to a halt at 57.5m. My reasoning begins, in that I think I should be finding the acceleration and once I've...

Hey guys um LIght from the Sun reaches Earth in 8.3 minutes . The velocity of light is 3 x 10 (8) meters per second<- <pretend this is a power>. How far is Earth from the sun? geez to get distance i have to multiply the speed vs the velocity in the answer key it says the...

Hello again, I'm having some issues with two of my problems. But I'll do one at a time and keep them here without having to start mulitple threads clogging the forum. Here's my first problem: A soccer player kicks the ball toward a goal that is 28.0m in front of him. The ball leaves his...

we have two cd drives d: and e: our d drive won't open at all. and for some reason our computer doesn't recognize that we have and e drive. I want to install new software, but because neither works, i can't. help?? ~abigale~

i have a dsl modem connect to pc 1 via Ethernet lan1 and pc 2 is connect to pc 1 via etherent lan2 and sharing internet. pc 1 works fine but pc 2 experienced problems like Messenger service auto disconnect every 50 sec . can not browser some site such as Microsoft.com any suggestion thanks

I want to ask about the philosophical perspectives of physicists: Why they have these views; How strictly they adhere to them; How are they manifest in approaches to QG; How does this influence the conception of spacetime, pre- and post- QG. I am not a physicist. I am a philosophy/logic...