Correction Definition and 178 Threads

Homework Statement Let C be a 2 error correcting code based on the binary alphabet {0,1}. suppose that the length of each codeword is n.. What is the max number of codewords that this code may have Homework Equations The Attempt at a Solution I'm having a real tough time...

Homework Statement This is the circuit: http://img129.imageshack.us/img129/3566/pfcog8.jpg Assume voltage is in rms and f is 50Hz. I have to do three things. First, calculate and compare true power vs apparent power in the load. Second, find the value of a capacitor placed in parallel...

i have i problem with many parts to it that the forums may be able to help me with. I've been given a scenario which involves gravity surveys along a path, in summary here it is: a gravity survey is taken at an initial latitude of 45 degrees and has an azimuth of 30 degrees. ive also been...

Question: Look at figure 1.8. If car A were to increase its speed to 60m/s, what would be the velocity of car A relative to car B. figure 1.8 is a picture of two car going different direction basically facing each other. Car a on the right is going at 40m/s and car b on the left is going at...

[FONT="Arial"] [SIZE="1"]I'm a physics undergraduate student who has recently finished a special relativity class, but haven't done a nuclear physics class yet, so if I'm mistaken anything about nuclear physics, please object. [SIZE="2"]I was pondering about a situation while doing my...

Using this: http://scienceworld.wolfram.com/astronomy/TropicalYear.html I derived this unix C code, which duplicates expected outputs. Note the constant T which is a correction factor for the epoch based in 2000, or so I assume because 2451545 is Jan 1 2000. And I have about epochs in...

Hello! I have a question regarding 'Interferogram-Phase-Correction'. Does anyone can refer me to some info regarding the extraction of information after "Michelson - interferogram - phase - correction"? If additional information regarding this or maybe this is not clear enough please tell...

Is it possible to perform some form of data correction by finding the variance/std dev and covariance? I have a bunch data all related to a specific observation. For test purposes, i have 1000 samples of each data for certain condition. I can find the covariance between each data under this...

1. Homework Statement (I forgot to write out the problem statement in previous post) How do California H.S. students compare to students nationwide in their college readiness, as measured by their SAT scores? The national average scores for the class of 2003 were 507 on the verbal portion...

Hey, Theres something I'm curious about. If you consider a voltage source connected to an RL load , in order to compensate for the lagging power factor produced by the inductor in the load all the textbooks say we should add a capacitor IN PARALLEL to the load. Wouldn't a capacitor added in...

Is there a cheap way to measure static correction on a shock collar for dogs? Thanks in advance, Mac

Relativistic Correction I had a few questions about Relativistic correction: A. Where in physics are Relativistic corrections made? and why? B. What are some examples of technologies that must apply Relativistic corrections? and why?

I had a few questions about Relativistic correction: A. Where in physics are Relativistic corrections made? and why? B. What are some examples of technologies that must apply Relativistic corrections? why?

Homework Statement Derive the general expression of 3rd-order perturbation energy for a non-degenerate quantum system. Homework Equations for nth order we have (Ho-Eo)|n>+(H'-E1)|n-1> -E2\n-2>-En|0>=0 (given) also, <0|0>=1, <1|0> = <0|1>=0, <0|2>=<2|0>=-1/2<1|1>...

Homework Statement Calculate the magnitude and direction of the Coulomb force on each of the three charges shown in Figure P15.10. http://www.webassign.net/sf5/p15_10.gif thats 3 cm if its to small to see. 6.00 µC charge Magnitude 1.50 µC charge Magnitude -2.00 µC charge...

Hi guys, Do you know what is meant by background correction in an Rutherford scattering apparatus. i can't even start doing it because i don't know what is a background correction, is it the average count / area of alpha particles on a detector?

I am trying to calibrate this circuit, and it is hooked up to a voltmeter and also a power supply. When the circuit is horizontal, the voltmeter is supposed to read zero both in the x and y direction. Here, the x-direction is determined by tilting the circuit up and down and the y-direction is...

hi can the bolometric correction be calculated if all i know of a cepheid variables properties are its period? for example, if the cepheid variable has a period of 3 days i can use a period-luminosity relationship to calculate the luminosity, from here i can then calculate the bolometric...

Help with understanding end correction I missed a lesson at school on end correction of standing waves in pipes. I have a vague understanding of them, but can anyone give me an idiot's guide to end correction? Most websites I've had a look at haven't been too helpful in explaining it. Now...

One problem in past climate models has been that the troposphere did not appear to be warming as much as expected. A new report in Science indicates that a correction factor should have been applied and was not. When the correction factor is applied, warming in the troposphere is observed. I am...

I wonder if someone could explain what is meant by 'End Correction' Any help is appriciated! thanks

Hello people, Not sure if I'm posting in the right place, but I have read quite a few posts since joining and have to say this forum is of a very high standard, well done. I'm a final year student working on my dissertation on Quantum Error Correction and was just wondering if anyone had...

Hi regarding the above subject there is a conflict of opinion between me and a collegue. So i need your help In order to calculate the corrected metacentric height of a floating structure that have a open compartment, filled with water, that is located eccentrically i have to use GMnew = GM -...

Suppose an electron has a small radius and we look at its radius and mass from the point of view of special relativity. Let's use the idea of (mass x length) = constant. No quantization. Is the contraction to zero radius at c a problem? If so then we can guess how to stop it. One way...

Lasers are being used to do many things now: eye correction, speed scaning, cutting, and now even to create iron! Scientists now use lasers to heat up hydrogen so they fuse into helium and all the way up the table into iron, just like stars. I want to know if lasers have mass. I know that...

What I have not seen in books about the Gibbs paradox is that it doesn't exist if we make the Gibbs correction at the logarithm of the Z function, not at the Z function itself, in that way: \ln Z_{i} - \ln N_{i} ! where N_{i} is the number of identical particles of class i, where there...

Hello, First I will post my question. I think it might be easier if I do this. Now I figure that the counsellor can take two of the four paths to determine if the campsite is down either of them. However, he still must depend on the campers to find out whether the remaining two paths...

Greetings. I just have a small question about DNA replication correction. My textbook states (might contain errors of translation): Now my question is about locating the place of the DNA error. Locating the place of a wrong nucleotide might seem logical, but how can the enzyme locate the...