Dynamic Definition and 432 Threads

  1. A

    My fluid dynamic project, i need explenation

    I have a physics project and i chose the topic of fluid dynamic (i don't know of it is really fluid dynamic but i think that is close enough). My level is only a high school student for information, in order to avoid any over complicating explenation. The concept is simple: first pour a...
  2. Gamma

    EM theory and therom dynamic books

    Hello, I need to purchase two books, for EM theory and Thermodynamics. I have briefly used couple of books years back and I can't seem to remember their titles or author. I slightly remember that the EM book was a blue color with a lots of information for first year - 4th year...
  3. F

    Building Dynamic Webpages: Alternatives to Coldfusion

    I'm trying to build a Dynamic webpage, I tried with Dreamweaver and Coldfusion, but Coldfusion is kind of confusing, isn't there other software out there that can do this too. Or do you know of other alternatives? Thanks in advance, FrostScYthe
  4. R

    Physics What Careers Involve Dynamic Physics?

    I am currently in High School and I really like Dynamic Physics and can you suggest some careers that involves the use of the concepts of dynamic physics. Thanks
  5. J

    Static and Dynamic Equilibrium

    Static and Dynamic Equilibrium! What is the difference between static equilibrium and dynamic equilibrium?
  6. M

    Dynamic Topology and the Impact of Expanding Spacetime on Subsets and Dimensions

    Just curious if anyone has ever studied what happens when a topology gains new members in the underlying set. How is it incorporated into the existing subsets whose union and intersection are included in the topology? It seems to me that assuming the universe expanded from a singularity, then...
  7. M

    How is adiabatic invariant proved in a simple dynamic system?

    I'm reading a book on quontum mechanics in japanese (Quontum Mechanics by Shinichiro Tomonaga) and am stuck in proving the action variable "J" is constant in a one dimensional cyclic movement. i.e. The action variable "J" created by the trajectory of H(p(t),q(t),a(t/T)) = E(t) doesn't...
  8. S

    Dynamic application of torque with center of mass

    ok here is the problem <br>A uniform meter stick of mass M has a half-filled can of fruit juice of mass m attached to one end. The meter stick and the can balance at a point 33.0 cm from the end of the stick where the can is attached. When the balanced stick-can system is suspended from a...
  9. W

    Why Does a Sphere Start Skidding on a Dome at a 30 Degree Angle?

    Qn A uniform Solid Sphere, placed on top of a spherical dome, rolls down the dome with negligible initial velocity. The sphere sphere start to skid(sliding at the point of contact )when the angle( angle btw the line joining the centre of the dome to the centre of the sphere and the verticle)...
  10. E

    Index of Refraction: Most Dynamic Substance

    Well, once again, I ask something about index of refraction. What is the substance that suffers the greatest change in density when heated/cooled (so that by heating it up only a few degrees its index of refraction will change, even if just by a tiny bit)?
  11. P

    Dynamic Motion: Frictional Forces and slope

    In a problem concerning Mechanics/Dynamic Motion, I am asked to find the acceleration net of an unidentified mass. I am given mu (.1) and the slope of the incline (38 degrees). After searching through my notes and as well as online, I cannot seem to find a way to determine the magnitude of the...
  12. L

    Are Misinterpretations of Thermodynamics Limiting Our Understanding?

    the laws of thermodynamics are going to be exposed as something terribly missinterpreted by those who have purported its values and constraints. To ponder a wisdom expounded as fact, and to fully believe in it, we have excluded probability of contagious thought, we then fail to see as a child...
  13. O

    Definition of dynamic noise and observational noise in finance

    Hi, i have problems differentiating these two terms. can anyone give some examples of these two terms? Thanks!
  14. J

    The relationship between dynamic stiffness and vibratin amplitude

    many references tell that the dynamic stiffness will reduce when vibration amplitude increases. And the experimental result is just so. But why there is such rule?who can explain it theoretically?
  15. N

    Reading Smythe's book on static and dynamic electricity

    reading Smythe's book on "static and dynamic electricity" Hi, I am reading Smythe's book on "static and dynamic electricity" (1st edition, 1939) and I'm having trouble deriving some of the formulas. I wonder if someone already corrected that. For instance, 1.10 - Gauss's electric flux...
  16. P

    Dynamic FEA of a brass sheet buckling

    Hi all, I am a student of Music technology and for a project that I am working on I need to do an unusual FEA. I want to create a simulated model of the sound phenomenon that occurs when a sheet of material is deformed. As part of this I am required to a dynamic finite element analysis for...
  17. H

    How Do Atomic Clocks Differ from Orbital Clocks in Measuring Time?

    I must be confused about the differences between atomic clocks and orbital clocks. Here is what I read on one site. http://www.ldolphin.org/setterfield/redshift.html The faster the velocity of light, the faster an atomic clock beats. I can undertand that. Dynamic clocks run independently, but...
  18. C

    Struggling with Modeling an Inline Web Manufacturing System: Can Anyone Help?

    I am having serious difficulty attempting to mathematically model an inline web manufacturing system that we are attempting to modify in house. The model would be a dynamic model that would simulate the current throughput of the machine as well as the modified throughput to justify the process...
  19. K

    Static and dynamic IP addresses are different

    My books tell me static and dynamic IP addresses are different but could you tell me which one do you prefer to have and why ? what can you do with static IP address and with dynamic one ?I mean their limitations, in what situations etc..? I have a ip : 218.227.208.5 delivered by my ISP, when...
  20. C

    How to define dynamic equilibrium

    Just a few short questions: I have to define dynamic equilibrium state in terms of a) reaction rates b) change in observable properties and c) energy and entropy state I also have to explain in which of the following closed containers has the greatest vapour pressure. the choices are a)...
  21. P

    Calculate Dynamic Mass & Force of Object in Motion

    I need to know how to calculate dynamic mass and forces. Example is a mass at the end of a string that is swung along an arc (not perpendicular or parallel to the floor). What equations or properties do I need to calculate dynamic mass and force of the object in motion? Thank you for your help.
  22. R

    Dynamic imaging of motion problem

    Often in the hospital setting, radiographers are asked to go up to theatre and perform real time imaging of patients for having tumours removed or drilling away some sort of object that may blocking a vessel. The mobile x-ray machine is an image intensifier (II) which is coupled to a TV which...
  23. K

    Detecting Dynamic Torque Across a Geared System

    I'd like to know if anyone here knows of anything that can sense the torque dynamically across a geared system (such as a transmission); basically, whether it is in a "positive" direction, a "negative" direction or zero. (The magnitude is not important, though it would be useful to know when it...
  24. A

    How Does Physics Explain These Real-World Scenarios?

    Boredom... I'm just plain stupid... (Don't know which equations to use...) If a 256 kg spacecraft weights 436 Newtons when it is on the moon, what is the gravitational field strength (in N/kg) there? To slide a 9.0 kg object at constant speed along the ground requires a force of...
  25. R

    Why is Level 1 Cache Faster Than Level 2 Cache?

    Why is Static RAM faster than Dynamic RAM. Why is it so expensive to manufacture SRAM?
  26. E

    Dynamic Graphical representations and Models

    Ok, I'm a little lost so if this subject is off topic for this forum then I appoligize. I am working on a modeling project that I'm trying to implement some code for and I don't even know where to start. I'm not that good of a coder nor am I that great at math but this project, in part, is to...
  27. W

    Porblem about dynamic applications of torque

    Hi, I am working on the following problem: A 2.85kg bucket is attached to a disk shaped pulley of radius 0.121m and mass of 0.742 kg. If the bucket is allowed to fall, what is: linear acceleration, angular acceleration of pulley and, how far does the bucket drop in 1.5 s? so far i...
  28. Loren Booda

    Photon self-interference interpreted as inside-out dynamic

    Photon self-interference interpreted as "inside-out" dynamic My http://www.quantumdream.net first article, "P-Duality: Quantum Mechanics Inside-Out," explains my concept of the inverse wavefunction, applicable to the virtual realm and its real interactions. The double-slit experiment was...
  29. D

    How Do You Calculate the Mass of a Block of Ice Using Thermal Dynamics?

    Ok, I don't quite understand the concept of thermal dynamics. So, I need some help here. When ice melts it takes 333,465 Joules of energy to convert one 1KG of solid ice into liquid water at 0 degrees celsius. Suppose that you have a one cubic foot block of ice. I need to find the MASS...
  30. quantumdude

    Modeling and Analysis of Dynamic Systems

    This lonely little Forum hasn't seen much traffic, and I suspect it's because most of you don't know exactly what the field of Systems Engineering actually entails. Given the importance of "the systems approach" to modern engineering, I think a tutorial thread is in order. The discussion...
  31. S

    Why Do Electrons Not Attract the Nucleus Despite Opposite Charges?

    Newbie here, so go easy. Electrons are negatively charged bodies orbiting around the nucleus, which contains the proton and the neutron. The net charge of the nucleus is positive, so why is there no attracton between the electrons and the nucleus?
  32. Greg Bernhardt

    Where Can I Find Open Loop Dynamic Process Data?

    This is from my sister:
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