Reading Definition and 614 Threads

This is turning out to be difficult for me, and I haven't even reached the part where he explains the theory of relativity itself :( "Let us suppose that the shot is fired from the guard's-van, and the echo comes from a screen on the engine. We will suppose the distance from the guard's-van...

Background reading from Wikipedia I read the following from Wikipedia, Question How does a dielectric's dipole becoming polarized

format statement to read input in fortran hello everyone, I've to read this following line in fortran, I don't know to read the exponential form please help me 3.49E+03 2.73E+01 2.01E-01 9.16E-02 5.94E-02 5.11E-02 3.27E+04 3.27E+04 can somebody help me to write the format...

I don't trust myself for reading this alone. Is this valid? http://arxiv.org/PS_cache/arxiv/pdf/0812/0812.1385v11.pdf

Homework Statement 3)An ammeter has a full scale deflection of 0.5 A.Internal resistance is 12 ohms.Explain with necessary calculations,how it should be converted to an ammeter of full scale deflection 2A. 4) does this modification change the sensitivity of the instrument?explain 5. The...

Hi All I'm completely new to Fortran 90 and I have to create a program that opens a formatted data file and reads in certain values into my program's variables. The variables are represented in the first six rows with ncols, nrows, xllcorner, yllcorner, cellsize and NODATA being the...

What is the reading on the scale for the first one?? My friend mentioned that upthrust need not be considered as its an 'internal force', i wonder why?? Shouldnt' the net force dowards be (Weight of stone - pVg) + (Weight of water + pVg) as the water experiences an equal an opposite downthrust...

Homework Statement Water flows at 3.64 L/s through a horizontal pipe that narrows smoothly from 10.2 cm diameter to 4.89 cm diameter. A pressure gauge in the narrow section reads 47.0 kPa. What is the reading of a pressure gauge in the wide section? Homework Equations F=PA P1+...

I am currently in my freshman/sophomore year of college and am majoring in physics. I was wondering what books you can recommend that I read. I really love physics and I just want to learn as much as I can about all different areas of physics. I have completed Calculus 3 and am willing to...

hi. I'm relatively (no pun intended) new to quantum physics. I just finished my high school physics class which mainly dealt with the basics and classical physics. Can anyone suggest some papers or articles I can read in order to get my feet wet in this new realm? Thanks.

what is the voltage reading using a multimeter in the multisim workbench software? is it average or peak voltage?

Dear Members, How can I read an MS Excel created csv or tab delimited file in FORTRAN 77? The two tab delimited and csv files are attached. Thank you, Ekin

I find Mandelbrot's Fractal Geometry of Nature relatively light reading, but am interested in a more standard textbook account to fill in my gaps in knowledge. Do people know of some good textbooks on the subjects - and other volumes relating to fractals and their application to physics.

I am working on an experiment involving Langmuir probes. I believe the probes act as capacitors when placed in a plasma to get a reading of the current density in the plasma. However, since we are biasing a voltage, I know that in order to read the current we must insert a resistor between the...

My table of nuclides has a column for Spin/Parity for the nuclides when applicable. It says it is the nuclei's total spin... yet I was under the assumption that a nucleus would have different spins depending if the proton and neutrons have various combination of up and down spins.

I got a topic to research! Recommended preparatory reading? I have been invited to write a proposal for researching this: >> The basic idea is to calculate, in first approximation, the effect of electron-positron pairs on the quantum state of a photon. You will need to study some...

We have a four wire PT100 signal conditioning circuit, which transpires resistance to voltage. 7mV constitutes one degree celsius. we are using a 12bit ADC to decode the analog input. When measured from a true RMS multi meter, the ADC input voltages are stable upto millivolt ( 4 1/2 digit...

Sometimes, usually early in the morning when I'm half awake/half asleep I dream of reading out of a book. The words appear very clearly and the image remains fixed, and I read from left to right, just like with a real book. Sometimes the words do not exist, it's gibberish, sometimes its fully in...

Hi all, I'm a graduating senior and I'm interested in covering and recovering mathematics to the calculus level. I've been feeling that all of my math courses to this point, high school and before, haven't really taught me much of anything in the way of real mathematics. I was looking for some...

i was told that i would be asked a question that deals with integrability and the link between the differentiability operation and the integration operation(the basic laws of Newton calculus) what question he can give that combines this things?? can you give an example?? i can't find a...

I found an excellent book through this forum: Gravity from the ground up by Bernard Schutz. I would appreciate more recommendations for good books on physics for the layman. I am not afraid of math (I am an engineer) but I think visually not mathematically. Once I get through the first...

Hi all, I have a tab delimited ASCII file (an output from IRAF). I need to read it into IDL, but it features a timestamp column (in UT - hh:mm:ss). I assume I need to read it in with some format codes, but I'm not familiar with fortran or C (or IDL to be honest), and it seems the format code...

I have found it difficult to concentrate on books that don't have any math or physics involved. It feels unfulfilling. Does anyone else have this problem? I tried reading some philosophy lately. But the fact that there were no equations made made it dull:frown:

Hi all -- I'm writing a controller for an interferometer and I need to be able to control the voltage across a terminal and read the current from a photodiode in c++. What would be a good, reasonably priced peripheral that would accomplish this, preferably with linux support? Better yet, is...

I am trying to make sure that the data I read off my multimeter has the right units. I have a multimeter that is a similar model to this one: http://www.tequipment.net/BK2703B.html You can enlarge the image to see the settings. When I measure AC current, my result says "2.95" when the...

Hi all, I imagine this is an amazingly simple problem for anyone with the slightest bit of programing knowledge (which isn't me). I hope there are people out there familiar with supermongo, I realize it's one of the more niche graphics languages. Anyway, I have a column of Julian dates, in...

So I have a power spectrum of a given function, which is supposed to be a superposition of four sinusoidal terms with frequencies that range from 1xomega to 4xomega. My spectrum looks something like this: http://upload.wikimedia.org/wikipedia/commons/4/4f/Triangle-td_and_fd.png What exactly...

I was reading on thin lenses, in which the lens makers' equation was proved. The proof first gave the lens (a biconvex lens) a thickness (which it would later consider negligible) so that the light would pass through one surface and out the other (so it comes into contact with 2 surfaces). The...

Homework Statement Potential Energy Graph A conservative force F(x) acts on a 2.0 kg particle that moves along the x axis. The potential energy U(x) associated with F(x) is graphed in Fig. 10-46. When the particle is at x = 2.5 m, its velocity is -2.0 m/s. The "kinks" in the graph occur at (1...

x 1 2 3 4 5 6 y h t t h t h if I map this on a graph.with out reading y. using just 'X' values or any other '...methods...' how to find out at x=3. y is H or T. Thanks.:zzz:

Homework Statement A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 61.20 diopters, and the lens-to-retina distance is 1.643 cm. (a) How far (in meters) is the blackboard from her eyes? (b) If the writing on the blackboard is 6.00 cm...

Hi guys, I came across On the Electrodynamics of Moving Bodies while searching the net on relativity. I started reading it cause I thought It would be quite fun to do, not hoping to understand allot of it. I understand the basic (no-mathematical) concepts behind relativity, but I would like to...

Errr... I have gotten into a graduate level course about groups. It might've been a bad decision but I felt I'm up for the challenge. I got to read some crazy material and write a paper on it as my final grade (3 months to go). I'm currently reading this Quantum Group stuff. Sounds...

I am having problems reading a binary file in FORTRAN. I know that the file was generated by the code below: open(7,file='hctd1_kxx.dat',form='unformatted') ... write(7) iscl write(7) inode,npoints write(7) (kxm(i)*(10**(prop(i))),i=1,npoints) close(7)...

I've noticed lately that when I'm reading a book (fiction, sci-fi, fantasy) and get to an exciting part, I get impatient with the author's dragging the scene on for pages of tiny details and just skip ahead several pages to get to the outcome. I seem to be doing this quite a bit more than when...

This isn't a specific problem. I have some handouts to read for a class I am taking, but I have trouble recalling a lot of details from them. I read a handout twice, and reviewed it before I went to class, but I had a lot of trouble on a pop quiz. How should I read so it sticks in my mind?

Hi, I'm working with distributions of weights that are predominently "normal". The weights on the upper end of the distribution are in error and I'd like to find a method that I can use to automatically "chop" off this portion of the distribution. Based on my inexperienced inspection of these...

hi, this is a simple question. I think reading an ebook on the computer screen is LESS effective then reading a paper books. Sometimes, my eyes feel pain especiall the ebook scrolling on the screen. So, I think it's more effective and healthy way to read on papers. Do you think so? Hope...

http://www.spreeder.com/ Tell me what you think. I'm currently reading stuff at the 550 WPM mark, but it's going to take awhile for my comprehension to catch up (I was doing about 200 WPM before the program). Subvocalization be damned! PS I can't wait to read at 800+ WPM.

A few days ago, I was trying articulate an argument why reading books is better than watching TV. I was very frustrated that at first I pretty much came up blank. I thought they both basically involve staring at a medium and processing the information contained in it. Since I NEVER watch TV and...

Homework Statement A standard scale (shown below) has an internal spring and a dial which shows the force exerted on the pan by this spring. The instrument has a mass of about 1 kg and weight 10 N. Ignore the weight of the light pan. To conserve space, the new metric commissioner stacks a...

I have a file with text and adjacent to it, the number i want to read. Below is the format. I was wondering how to read just the numbers without touching the text. trhy 30.0 difje 30.0 sdjk 66.5 xmb 15.0 dcos 15.0 fjvm 2.573e-4 srht 9.05e-3 art3...

Hi! Thanks for helping me. I need to write a program (in C++) that reads the file Employee.dat as input and then outputs to 4 different files which are Managers.dat, Marketing.dat, Developers.dat, and Testers.dat. Each of the output files contains the name of the employees of its category. The...

are clocks, displaying a negatve time, compatible with special relativity? thanks

Hi , Everyone I'm learning how to read datasheets , amd i have a question about this . In the datasheet of the transistor BC238 , in the Absolute Maximum Ratings the Ic = 10mA Does That mean that i can't get an Ic output = 1000mA . Thanks .

Homework Statement The circuit in the attached figure (excuse the terrible drawing, I suck at using the paint feature) all meters are idealized and the batteries have no appreciable internal resistance a) Find the reading of the voltmeter with the switch S open b) With the switch...

Hi, I have read WAV files as data/numbers into MATLAB before for Fourier analysis etc and am now trying to do the same with Excel. I have found code online which has allowed me to make use of the winmm.dll from windows to be able to create a WAV sound file from excel and also to be able to...

Homework Statement The net force exerted on a 3.5-kg block is shown in the figure as a function of time. How far does the block travel in the first 11.0 s? Assume that the motion is one dimensional and that the velocity of the block at time t= 0 s is 0 m/s. Homework Equations Vf^2 = Vi^2 +...

I'm getting a little stuck on terminology, but most of it can be looked up in wikipedia. However, there's one term I'm having trouble with. The paper is for a model of micrometeorites entering the atmosphere. It says: "Entry velocities ranged between 11.2 and 72 km/sec following a v^-5,394...

how to cure Switch Bounce? is it a good idea to read the key more than once?