Classical Physics

Does that makes sens . if yes Why ?

Hello Every one. I'm working on a model that would demonstrate the veracity of the string Theory . Please your answer will be very much appreciated, if Yes why and if No Why Thanks .

would like to know /

Referring to the rider man who tosses a ball from a motorcycle ahead of him the equation is no accurate because the inertia of the body the (ball) is not taking in consideration even if the ball has little inertia it should be included in the equation. For example . let the man the rider be sitting on a small wagon and they together make 100 pounds and let the ball be 100 pounds so they both have the same inertia; now lets give a tiny push let say with a velocity 5 feet second to the wagon and tell the man to trow the ball ahead of him should the reduced speed of the wagon , be consider in the equation ; no need to know the velocity of the ball in this case.

Is it really necessary ? anyone knows.

. . Parts of the heavy steel disc, appear to keep falling under gravity towards the level mirror surface . See picture. The disc appears to keep falling around its circumference , but never makes it. So the disc continues to spin a long time. ( Not really a spin , more a slow turning as the fast falling oscillations occur. ) I have noticed : occasionally if china dishes are haphazardly laid on a hard granite surface , one plate will occasionally , rock back and forward almost indefinitely , going click, click, click.....again sides of the plate falling this side then that side , this side then that side . How does Gravity ? if it is gravity that causes both…

Is it known ?~ the distance from the black hole to the end at the greatest diameter of the ''cone'' .and also the degree of escaping from the black hole.

(AHH the dreaded fidget spinner!) So in the video, a guy is rotating a fidget spinner held in a vice grip, with an air compressor. The spinner spins so fast that it eventually explodes/ tears apart. My questions is, what is the most probable mechanism to cause it to explode? Fidget spinners are mostly metal with a plastic casing holding the ball bearings in place. I have 2 thoughts on the cause of the explosion. Either the plastic over-heated and just split apart, or it was stressed from expansion of the spinner rotating too fast. Your thoughts? Pic of fidget spinner Video

Hello What you think about this... Make a compass Magnetize the needle. Whether you use a sewing needle or other piece of metal, rub the object over the magnet. Always pull the needle in the same direction instead of back and forth with even movements. After 50 times the needle is magnetized. Use the same method to magnetize the needle with silk, fur or hair. Pull the needle 50 times over the object to magnetize it. Do not use these soft things when the needle is made of a razor blade. If you magnetize with a piece of steel or iron, knock on the needle to magnetize it. Put the needle in a piece of wood and tap 50 times on its tip. http://de.wikih…

maybe i am putting to much thought into this.......or maybe not enough @.@ .... either way, i seem to of hit a brick wall, and i cant find a answer that makes sense to me. what is the space between a nucleus and its particles? from my research thus far, it seems people think the space between them is literally "nothing". does this sound really stupid to anyone else or is it just me? i must be missing something. the way i see it, its impossible for the space to be "nothing"....if it were nothing, then that very space of "nothing" would not exist, thus, there would not be any type of space between a nucleus and its particles. right? on top of all that, whats …

Newton gives a formula for calculating a gravitational force. Is there a similar formula for GR ? Is the einsteinian force (always) greater than, or less than, the newtonian ?

It's highly improbable, but i'm thinking of a binary star system wherein both stars are identical in all properties,( size, mass etc. ), but just not near enough to cause each other any gravitational disturbance or exchange of matter, and a planet is situated exactly at the barycenter of the two stars and , so, in effect, the stars are orbiting the planet ( sorry Copernicus! ). Would that planet be completely immobile in space and/or affected in other ways by the gravity of those stars?

recently, for some odd reason i have been feeling a urge to understand how the universe works....and it seems that google can only get you so far before you hit a dead end. i have some simple and strait forward questions but i have not found much information about the subjects online. (maybe its because i do not know how to phrase my questions properly or something) 1- what exactly causes planets to orbit a large object like the sun? i have read that a object's gravity bends the space-time around it, how ever, that alone doesnt explain where the initial force that sets the planet in motion comes from. its not possible for bent space by itself to cause a planet to…

please help me: how can this wheel work ? or is Trick ? link removed per rules very thank's BR

Energy !~ is the property that must be transferred to an object in order to perform work on the object, The SI unit of energy is the joule, which is the energy transferred to an object by the mechanical work of moving matter a distance in time . So energy cannot be demonstrated , if there is no matter in is pat acting opposed to it's constituent , witch is acting as a opposite force and that force will tell the amount of energy being used ,depending of the tip of energy ? So when I say that matter is necessary to demonstrate that energy is present to do work that statement is true or not .../ So energy in it self is not a force only a propriety .

We have two notions of the magnetic field. One is the B field, commonly called the magnetic flux density and the other one is the H field, also called the magnetic field strength. However, I want to know the difference between them. Most equations involving magnetic field uses B. However what is the use of H is still not clear to me. I have seen some relations between them in Wikipedia. However I couldn't understand that well. So please show how they are different and in what way the H field is useful.

I'm blissfully ignorant when it comes to fields. At school level physics, (a long time ago), the word was used widely, without any detail being thrown in. I took it to mean "field of influence" but the physics world must have moved on since then. A gravitational field is said to be the curving of space time. Is a magnetic field and electric field also due to curving of a different component of space time?

Age of the Earth is 4.543 billions y.../ _________Moon__4.53__b.y Size& mass_____Earth __5.97 ________ Moon ______ 1.622 Question. Why?~ the Earth and moon have nearly the same age and so much (different mass~ and size)

I want to make something like a solar powered landscape light visible from several (2 to 5?) miles away, but only from one location. The one location part seems relatively easy, I can just put it in a box and make the opening a long tube, pointed at the location. I am less sure about it being visible from that far away. To make it easier to spot, I was wondering if it is possible/practical to direct more of the light down the tube to increase the intensity. My first thought was to coat the inside of the box (sphere?) with something reflective, so light from the source bounces around until it eventually goes out the right way, rather than just being absorbed. next I was wo…

is there any form of energy that is release when we walk on a surface ie; this form of energy is absorb by the surface of the material . eg walking on a ground, driving a car or riding a bicycle.

Please check whether my solution to the problem is right or not.

Hi guys, This is probably a question that has been asked before, but I just thought about it a few days ago and couldn't quite figure out if I have the right answer. If we look at a sailboat, it's working in a quite "simple" way: The wind pushes the sail and gives the boat momentum. The wind, however, is not something that we can say originates from a specific POINT. It's the movement of air molecules. What would happen if I stick a very powerful fan on the rear of the sailboat, facing the sail? Would my sailboat be faster? When I was thinking about it, the first thing that came to my mind is a comparison to a situation where I'd be pushing the boat from …

Identical atomic clocks were used in an experiment to test the theory that,for moving bodies,time slows down. The clocks used the oscillations of caesium atoms to achieve results as accurately as possible, and found that the theory was correct. Does this mean that the caesium oscillations slowed down in the moving clock or is it more complex than that?

What is the physics formula for an object going uphill? Assuming you know the initial velocity, the mass, the angle of the hill, and there is no friction or air resistance.

Okay, so I am writing a book that has elements of both fantasy and science fiction in it. The section I am writing at the moment involves a team of guys who are going to attempt a very high risk break in into a skyscraper but instead of going in via the floor or the roof they are going to do so in a slightly more far fetched yet fun to read way. What I need is someone with a knowledge of physics to give me some distances and speed of various elements so that I can write it in a way that makes it possible. Insanely crazy, but possible. The break in is going to occur with one guy on a high powered motorcycle racing along the floor of a still under construction building …