Reading Definition and 614 Threads

The meter in the circuit shown in the image has an uncalibrated linear scale. With the circuit as shown, the scale reading is 20. Find the scale reading when another 2000Ω resistor is connected across XY.

I'm reading the book (Organic Chemistry by John McMurray) for my organic chemistry class at the moment and when I looked at the past exam papers and course structure I noticed it doesn't cover a lot of what I've read so far. My course only seems to cover a handful of chapters in the book. Its a...

I have been given the task to write a program that does some basic math and numerical integration on numbers. Those numbers are stored in a .xls file. I have looked online and have seen the Apache POI and whatnot, but I have some serious problems stemming from my total lack of knowledge: How...

While reading gravitation chapter I got some doubts, and that I am posting here. 1) Is there any meaning of "Weight of the Earth"? 2)At noon, the sun and the Earth pull the objects on the Earth's surface in opposite direction. At midnight the sun and the Earth pull these objects in the...

Hi all, Just wondering if any of you can recommend some further reading for a Sixth Form student who has just finished the (aptly named) "Nanotechnology for Dummies"? Found it too off subject as far as the scientific processes were concerned and too focussed on the business/industry side. Do...

Hi all, I'm wondering how to gauge the chances i have of making it into a PhD program. First approximation: took ratio of accepted students to number of students who applied. But: that produced a 116/487 = 24% chance of being admitted to U-Cal San Diego, verses a 45/260 = 18% chance of...

Hi peeps! I was reading Haaser-Sullivan's Real Analysis and came across a problem for which I have a doubt. A part of it is stated like this : " For all x in the closed interval [a,b] in R, |g'(x)|<=1 '' (g(x) is, of course, a real-valued function of a real variable and that's all we know...

Hi, I'll be starting a physics major in the fall at university. I was wondering, is there any good reading material I can get my hands on so I can start learning now? Thanks.

OK, I have a plan to learn this summer after all of my exams will end, some subjects in physics and maths (GR,QFT, measure theory,DG and some random matrix theory, not sure if this plan is tangible, I'll try), so for GR I think of using Wald's and A First course in GR, maybe I'll also look at...

When you read to yourself, say for leisure (not reading physics or mathematics for example) or in 'ordinary circumstances', do you hear each word in your head? I think I might just be a retard, but it turns out that I'm skim-reading if and only if I don't 'hear the words in my head'...

Hey all, I'm in the process of writing a Suggested Reorder Program for my father's small business.. His current computer program exports its item data in the form of .CSV files. I'm trying to read the file into FORTRAN to manipulate. However, I run into the following problem: Even...

http://chiefio.wordpress.com/2010/06/01/near-light-speed-drive/ ? someone please. please tell me...

Hi all, I am confused with the amplitude at 1x, 2x, 3x frequency. The 1x, 2x and 3x is the harmonic (or mutiples) of the original frequency, meaning that if the shaft is turning at 1500rpm, then 2x will be the amplitude at 3000rpm and 3x will be the amplitude at 4500rpm right? But how will...

Hi guys and gals, I'm trying to use fortran 77 to read a csv file which has data like this...

Homework Statement a_{n+2}=3a_{n+1}-2a_n[/itex] [tex]a_1=1, a_2=1 Find the next 5 terms. Homework Equations The Attempt at a Solution I don't really understand the "a sub n" notation. Could someone do the next few terms so I can see how it's done?

What I want to do is to to read the number of processes, their arrival time, and then in the next line, their bursts. Here's the file format: P1 0 12 2 21 2 12 32 18 P2 9 13 17 3 21 45 67 21 2 (1st line) Process Arrivaltime (2nd line) Bursts (3rd line) Process Arrivaltime (4th line)...

Homework Statement I want to read each line separately in a char array from a text file. As yet, the best I could do is to read the entire file in a single char array. How can I read each line in a separate array? Homework Equations The Attempt at a Solution #include <stdio.h>...

Hi, I am pleased to have joined and I hope to browse this forum when I have some time. I have started reading A Brief History of Time for the first time and wanted to express how awesome this book is already (chapter 3 started) and how much it is making me think (and not about work). Chapter...

Homework Statement OK. So I've been given a uni lab report to write up but we were only told yesterday how to read proton NMR, and it's due in on Monday. I'm not terrible at deciphering it, but the compound I've been given the NMR for doesn't make sense (to me). I have to look at the proton...

I am trying to self-teach myself Fortran for an undergrad research position. A basic program that I am trying to develop is something will open a file, read a single value from a large table of data, do some calculations with it, and print it into a new file. I was hoping to get a little advice...

Homework Statement I have to answer questions 1 - estimate the size (in volts) of the DC signal from CH1 and 2-estimate the peak-to-peak voltage AC signal of CH2, then find it's period and frequency And then I'm supposed to 'briefly describe a simple example in which oscillations or waves...

I am reading Michio Kaku books and Brian Green Books and I am planing reading Stephen Hawking books and I have a couple of question please give me a link if it already have been answered. 1-If I move at 90% speed of light and trow something at 90% speed of light in the same direction that...

I have an assignment where we have to use loops to print quarter diamond patterns. I don't really need help with the actual coding, since the prof basically gave us a pseudo-code as a hint, but in the pseudo-code there is a variable for the number of rows and columns. I have been searching...

Hello everyone, Can anyone please tell me what is meant by the following terms: Pipe Minor Diameter, Pipe Major Diameter, and Tapping Drill Size in the following link? http://www.gewinde-normen.de/en/tapered-whitworth-pipe-thread.html Regards Huygen

I propose to collect here some links which may be over the head of most PF users, but which should be invaluable for SA/Ms who feel the need to quickly brush up before addressing some thorny question involving the concept of certain topics related to gtr. In this post, Useful Background...

If you walked into a cave that led several stories underground, completely cut off by light, would you be able to read a standard textbook you'd carried with you using a set of infrared goggles? Along with a spectrometer? After several days? My guesses are no, in all cases, unless the ink...

Every now and then a really good short read comes around. I thought I'd pass this one on. It is a funny story about the only Naval Aviator to get credit (really notoriety) for shooting himself down. http://www.aerospacetestinginternational.com/downloads/trailblazers.pdf"

Is this book worth of reading?

Hi all, I wanted to know what text would be best reading for the thermodynamics portion of the Physics GRE. Quantum and Electrodynamics has "Griffiths" questions, for instance: "standard tomes", if you will. Is there, likewise, a standard tome of thermo and statistical? Thanks so much...

here's the idea, i prefer to read in dim light because I'm suffering from migraine, but like 90% people around me keep telling that it will cause bad health in eye, but when i need the proves, they proofs nothing. So, maybe, i need to debunk this "old wives tales", and need some evidence...

Hello All, I have been working on this problem for a few hours now and it's really beginning to bug me. I did a search on Google for methods of monitoring multiple push-buttons (tact switches in my case) using a single analog IO pin from a microcontroller. So far, I have come across a few...

Hello there, yet another trivial problem: I've attended the 'stochastic process' course some time ago but the only thing I remember is that this kind of problem is really easy to compute, there is some simple pattern for this I presume. thanks for your help, rahl.

I made sure this chart is identical to the one in my textbook, so there are no discrepancies. So in the solutions manual, they find alpha by subtracting the confidence coefficient from 1, then dividing that value by 2, and looking up that value in the table. So for one example, they used...

I'm sure this has been asked numerous times so I apologize ahead of time. I have no physics background but have been increasing interested and have read a few books in the recent months and my curiosity has only grown. So far I have read the following. In Search of Schrodinger's Cat - John...

I made a thread a while back about a guy who was being avoidant and I said I was not sure whether he was being avoidant because he wanted nothing do with me or that he was extremely uncomfortable being in social situations like he once confessed the reason he avoided social situations with...

I'm trying to decide whether to stay where I'm at (a big public state school) or transfer to Rice next semester (I just got accepted). I'm a pure mathematics major, and my ambitions for graduate school are high. I spoke with my advisor today for nearly an hour about my schedule next semester...

From the http://physicsworld.com/cws/article/news/23637 How can that be possible? Isn't that a violation of the No-cloning theorem?

Do you ever find it effective to review or scan from back to front what you have read? I find always editing from the beginning what I write somewhat redundant. I surmise that there are unique patterns in reverse reading.

Heya, i live in the UK and at the moment I'm doing a lot of research as to what i want to specialize in in the future. Now I've done quite a bit of reading up on what Geophysics actually is, but i just can't nail the what's its [I]really[I] about. Some places i read its about harnessing the...

Hi, My friends and I are doing a project that involves some very high (multiples of 10 kV and above) voltage, but very low current. The controller for our transformer has an analog ammeter on it, but we would like to have a computer read and recored the current readings from it. We have a...

Reading textbooks on ebook reader! Well I wonder that I am not the first with this Idea. I am reading lots great eBooks (by Walter Greiner) on my desktop. Well, I am so impressed by those books that I have decided to use them as my textbooks. But the problem is I can't sit in front of LCD for...

I'm sorry, this is probably a pretty stupid question as I probably am just not understanding something basic about nuclear reactions. Can someone please help? I am trying to understand what happens when Au-196 goes to Hg-196. I am assuming it is something like: Au^{196}_{79} \rightarrow...

1. Sun falls both on a pair of reading glasses and a dark pair of sunglasses. Which pair would you expect to become warmer? defend you anser. At first it reminded me of the white car, black car type question. But then I realized sunglasses are meant to block UV ray, etc. and are usually...

Show that U(x0, ε) is an open set. I'm reading Analysis on Manifolds by Munkres. This question is in the review on Topology section. And I've just recently been introduced to basic-basic topology from Principles of Mathematical Analysis by Rudin. I'm not really certain where to begin...

Hi, I'm a CPA here in Texas. I work in finance now and have for the past 5 years. Recently, I've developed the desire to understand at least parts of the relativity theories. I'm not considering changing careers or going back to college, as I'm 33 and happy in my current line of work...

So I'm a pretty smart guy, I can do lots of abstract thinking, I have great memory, and am quite capable at forming conclusions and hypotheses on my own, but maybe I'm a slow reader or something, but whenever I study physics it seems to take forever to get through anything. I took anatomy and...

In order to promote the informed discussion of philosophy, I thought it might help if we could all be on the same page on some of the issues, literally. I would like to invite suggestions on relatively accessible philosophy texts that we could read and discuss. What issues have been on your...

I am having trouble reading the intentions of a person I thought was a friend, but now I am not really sure what to call him. I am not sure whether he is avoiding me on purpose because he's too shy or doesn't want to talk to anyone or he has reasons for not contacting me that might be beyond...

I have the following book: https://www.amazon.com/dp/0072401893/?tag=pfamazon01-20 I'm currently going over symbolization and truth-functional connectives. I have a question considering a material conditional paraphrasing. Of course, you cannot state this backwards. If he applied for the...

Hi, I have a formatted data file (obtained from fortran) which has 1 column and 24000 rows. The values are like -0.8736252526127E-9 -0.1928287267367E-11 0.28373737626278E-12 etc etc. I have tried to read these data in MATLAB using the following command : fid=fopen('filename')...