Distributed Definition and 210 Threads

  1. V

    Are craters on the moon randomly distributed?

    In world war two the British used a Poisson distribution to analyse where V-rockets were landing in London and showed that the pattern of targets hit was random and that therefore the rockets were not being guided accurately. Hasanything similar been done for the craters on the moon - their...
  2. J

    How to tell if data is normally distributed?

    Is there a formal way of telling if my data is normally distributed? I know I could plot a histogram for the data, and see if it follows a bell shaped curve, but I need something a lot more formal than this. Is there a way to do it? Thanks
  3. N

    Positive charge distributed uniformly along y axis

    I have a physics question that states: An amount of positive charge is distributed uniformly along the positive y-axis between y=o and y=a. A negative point charge -q lies on teh positive x=axis a distance r from the origin. Derive the x and y compontes of the force that the charge distribution...
  4. T

    How Do You Calculate the Point-Force Location for Unevenly Distributed Loads?

    In static problems, an evenly distributed load can be made into a point-force by multiplying the load by its length, and so this point-force will now act in the center of the distributed load. This is cool, but I can't find out how to do the same thing with loads that are unevenly distributed...
  5. C

    Distributed Strain Sensing with FO Bragg Gratings

    Not really something I would expect most people to know so I will keep it out of the Homework help section (it is not homework) I am working on distributed strain sensing with fibre optic Bragg gratings for aircraft. For those that don't know, FO Bragg gratings are a periodic variation in...
  6. L

    Problem to understand how the power is distributed

    I can’t get in the picture below which power I will get on the wheel, i am guessing that there will be an resultant on 45 degree with a force of around400*9,82 N. http://img33.imageshack.us/img33/2695/problemhjul4rh.jpg Thx for any help given
  7. L

    Uniformly Distributed Current in a Wire: Question Explained

    ive posted this in the other forum, but haven't received a reply, so trying again :) Question: -straight wire with radius R, carrying current I -current is uniformly distributed across the cross sectional area of wire -calculate the magnetic field inside wire as function of distance r from...
  8. A

    Math Help: P(40 ≤ X ≤ 50, 20 ≤ Y ≤ 25) & P(4(X-45)^2+100(Y-20)^2 ≤ 2)

    Suppose that X and Y are independent random variables, where X is normally distributed with mean 45 and standard deviation 0.5 and Y is normally distributed with mean 20 and standard deviation 0.1. (a) Find \ P(40 \leq X \leq 50, \ 20 \leq Y \leq 25). Ans. ~0.5 (b) Find \...
  9. F

    Question about poisson distributed variables

    Hi, I'm trying to prove if X~Po(m) => 2X~Po(2m) But I'm not sure how to prove or disprove it. I'm thinking about using the addition formula, but is this the right approach? X_1~Po(m) X_2~Po(n) X_1+X_2~Po(m+n) n=m => X_1=X_2 => 2X_1~Po(2m) Any help is appreciate. Thanks /farbror
  10. B

    Distributed Computing Apps: Our Members' Favourites

    Do any of our members use any distributed computing apps? If so, what do you use, and for what reason? What are your favourites? I ran SETI@home (like almost everyone else on earth, I think. ;) ) for quite a while, achieving 221 data units in 7,000 hours. But recently I've switched to...