Recent content by Dilema

And yet the escape velocity from a black hole is given by the application of Newton law c=(GM/r)^0.5. r is Schwarzschild radius. Newton's law is good enough for small mass. Apparently, back hols turn to be small mass compared to galaxies.

Actually it has been started as a question and then I refereed to the literature. I hoped that you will refer me to a paper instead.

It is not that simple. It is suggesting (as far as I could understated) there is a complex dynamics within a spinning elementary particle. Specifically I succeed to fish out that the charge in the electron, moves in the speed of light. However I might generalized things and it is better you will...

Please refer to the book "What is the Electron?" Publisher: C. Roy Keys Inc. Editors: Volodimir Simulik.

Addressing to electron as being rigid body that precesse is probably controversial. Are there any attempts to stick to that model and to calculate its quantize tangent velocity?

Thanks jbriggs444 If you found a document that derived it please let me know.

Is it possible to derive escape velocity say using momentum and force balance considerations? or using angular momentum consideration? Namely, any other approach then energy consideration that utilizes gravitation potential energy and kinetic energy?

The references I put are confusing and misleading. I showed that I tried to get some inspiration as for how to solve my problem. Please follow the link for a better description of the problem. I hope it is clearer. https://drive.google.com/file/d/1kJtpLYN7Z30rR3LEK5-oTgC5mskzbkDb/view?usp=sharing

Chestermiller: The force is uniformly distributed over an area of the hemisphere Daven: I work in parallel I was looking for example in a thesis entitled STRESS ANALYSIS OF AN ELLIPSOIDAL INCLUSION see link https://www.physicsforums.com/threads/calculating-youngs-modulus.944549/ I also tried...

I need to calculate Young's modulus based on deformation of sphere into ellipsoid. I assume the deforming force acting along one axes. Initial dimensions of the object before (sphere) and after (ellipsoid) deformation are known.Does anyone know or familiar with good reference?

"So could it happen near a black hole?" I have no idea. I think in most cases scientists observed a phenomenon and then did the analogy. I do not recall any case of a searching phenomenon to meet analog. In analogy to mathematics. It is much easier to obtain a derivative than to...

Dear all replayers 1. The different wave velocities in a medium are not sufficient to have wave roll up. You need a force field (like gravitation) to have an equivalent to a water layer falling due to gravity. 2. Remeber the water bath with slits that showing the diffraction and interference the...

When sea waves approach the shore they roll up and break due to different velocities of water layers formed due to the gradual change in water depth. The highest wave peaks move faster than all other layers and thus falls down. All other layers fall the same way but in a delay. this ends up with...

In addition. 1. what is the presure of this force (alternativly wat is the efferctiv area it is acting on?...nucleai corrss section area?).

Can you please direct me to ref that shows the derivation of the escape velocity from a spherical object that moves in velocity v~c with respect to rest frame? I suspect the escape velocity is increasing (intuitively since the mass increases). Please comment and suggest alternatives.