Classical Physics

Before we start. I need to come forward and say from here forward I want to try and correct some negative out look on My topics and responses I post here. I realize I have not be choice with my words and I only want to learn, that is why I post I want others opinions. So with that being said. I don't quite understand Photons, or at least there might be some form of confusion here please read the entire thing so you have a good understanding of my perception and why I posted this. Matter is anything that occupies space (having volume) and has mass Correct? If something physically exist it has Dimensions, things with Dimension ar…

The speed of gravity = the speed of light. So if you go faster than gravity, you go back in time. The only thing that can travel at the speed of light is light, and if gravity can travel at the speed of light, then it's almost definitely the same thing as light. Also, there's no gravity or light in outer space. Almost certainly a sign that gravity and light are the same particle. Maybe gravity is light in a different form, like Jesus was God in human form. Gravity is caused by the earth. Light is caused by the sun. The sun energizes the earth while being the polar opposite of the earth. So in a vague way, the equation of gravity and ligh…

This question concerns possible future uses in space of Lidar (Laser Imaging, Detection & Ranging) with regards to the detection of incoming asteroids, comets etc. Thus what would be the limiting distance of a Lidar system of a given power output in terms of resolution? Could its laser beams in theory be able to extend from Earth orbit to as far away as (say) the Main Asteroid belt, or even further afield? Or would the beam's width or 'spot-size' by then be too distended/incoherent to be of any use? Forgive any imprecision in the use of scientific terms here. Many thanks.

I could not find the answer to my question in the physics textbooks I studied. My question is this: What is the difference, if any, between the reflection of light on a mirror and the reflection of all the colors of light on a white surface?

Who invented the hypersonic missile?

Hello, Today, I am interested in the handling problem on an assembly consisting of a body and 4 parts serving as feet (on which the assembly rests during conventional use) all fixed to the body by 3 screws. Handling for this assembly is carried out with a handling overhead crane, knowing that the assembly is lying on the side opposite to A to facilitate the handling. There are 2 lifting shackles placed on 2 of the feet of the assembly (positioned on the through and smooth holes of the feet) and 2 slings of 1.5 meters are used to link the 2 shackles and the handling bridge. In addition, 1 other sling of 3 meters makes the link between the bridge and the o…

Hello everyone I'm working on a project regarding cochlear implants and tissue conductivity. For this project, I'd like to express how much current reaches a certain tissue when passing different sorts of other tissues. Assume an initial current \(I_0\) passing through \(n\) different tissues with resistivity \(R_n\). Assume each tissue has the same volume. Now, I suppose each time some of the current will reside in the tissue, acting as some sort of capacitor, and some will be passed onto the next tissue? I also assume that current doesn't travel in one direction in a tissue, but is always equally distributed along the tissue volume? For the sake…

So the other day I had a circular tub filled with water. I added a few grams of detergent to it and started stirring with my hands. As expected, detergent tended to settle right at the center of the tub. Was this because of centripetal force? In washing machines, the clothes are spinning but are pushed away from the centre due to centrifugal force. I am not sure. Can someone help me understand the forces acting in both the scenarios?

Hi, I am trying to model a Particle in Non-Harmonic Motion (Like a spring with Mass oscillator, but with random forces impacting its motion) The data i can take from this is (at a given time) is, - Distance traveled - Displacement (relative to Equilibrium) in the form of '% change' I am trying to model this the SHM formulas x(t), x'(t), x''(t) Do i need to 1st translate the data to the unit circle, with Euler's formula, to then get the PE curve for the object, and solve the SHM formulas from there? I appreciate any clarification on this Thanks in Advance,

In a capacitor discharge through a plain resistor, the capacitor power supplied at any instant is VI; the power dissipated in the resistor is I²R. So VI = I²R. Consider a railgun operated with a capacitor bank. At any instant of capacitor discharge, the power supplied is VI. The total power supplied for ohmic loss is sum I²R for two rails plus the resistance of the armature. Question: Since VI = total I²R, how can the power equation include the kinetic energy supplied to the armature?

Let’s start out with a glass with no electric field in it. Now we we impose an electric field on the glass by sending light in it. Then, how do the charges in the glass set up their own counterbalancing electric field in opposite direction that results in reducing the total electric field?

I was a bit taken aback recently when I learned that the motion of a pendulum is complex to model, I must have last looked at this when I was in school and paid little attention, I think we used some simplified model and I never appreciated it was more complex. My experience with differential equations is rather limited and I had no idea that an equation like Eq. 1 was so involved. Fascinating how sometimes something that gives an impression of simplicity turns out to be far more involved.

An electromagnet and a permanent magnet are at a distance from one another and are at rest relative to one another. The electromagnet is off. The electromagnet is turned on. The turned-on electromagnet is within the permanent magnet's magnetic field, and so the electromagnet is attracted to the permanent magnet. (The electromagnet and the permanent magnet are attractively aligned.) And so, the electromagnet will begin to accelerate towards the permanent magnet. When the electromagnet is turned on a magnetic field is created around the electromagnet. The permanent magnet is within the electromagnet's newly created …

https://www.quantamagazine.org/fermilab-says-particle-is-heavy-enough-to-break-the-standard-model-20220407/ Newly Measured Particle Seems Heavy Enough to Break Known Physics A new analysis of W bosons suggests these particles are significantly heavier than predicted by the Standard Model of particle physics. hysicists have found that an elementary particle called the W boson appears to be 0.1% too heavy — a tiny discrepancy that could foreshadow a huge shift in fundamental physics. The measurement, reported today in the journal Science, comes from a vintage particle collider at the Fermi National Accelerator Laboratory in Batavia, Illinois, that smashe…

In a previous post, I mentioned how gravity and light having the same speed, means they probably are the same particle or wave. If that's so, to go faster than the speed of light, i.e time travel, you just need to go faster than the speed of gravity. Antimatter is one object that cannot be controlled. Antimatter like the stuff in CERN. Does that mean that antimatter can be used to time travel?

Hello everyone! I was trying to imagine how some properties of physics (like energy and forces) would be in a 2D Universe. But I found some irregularities... Thinking in 3D terms and considering that gravity exists, we can easily deduce the equation for the Gravitational Force (like Newton did): It must be proportional to both two-body masses; Since we live in a 3D universe we can imagine that the gravity extends by a distance in 1 dimension, remaining the other 2 dimensions for it to spread, forming a spherical propagation. So it must be inversely proportional to the distance squared; We need a constant to fix the units and values. So, the …

Hi everyone i found this video on youtube saying that this substance has magical properties, one of them is to not have a reflection on the mirror... i tried to find where is the trick but didn't notice anything strange.. So what do you think?

HI there. I've been doing some repairs on my car recently and I found myself wondering about my torque wrench. It isn't a precision tool, but good enough for bolts in the chassis, or the wheel nuts. Anyway, I was thinking about what happens to a steel bar if you fix it horizontally at one end and hang a weight at the other. It bends down at the weighted end and this end is now at an angle to the horizontal. So what does this angle represent? I know a torque is perpendicular to the applied force, but where do I go from there?

Hi, Completely new to the forum. Please be kind. Just looking for some feedback on an idea that a single equation to calculate both the force of molecular bonds and the force of gravity is possible if a sphere is not approximated as a point at the molecular level using conventional Coulombic forces. Anyway, my attempt at explaining it is here https://newtontweaked.com/ Thanks in advance, Colin.

Just want to share what the great man wrote about it: "That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man who has in philosophical matters a competent faculty of thinking can ever fall into it. Gravity must be caused by an agent acting constantly according to certain laws; but whether this agent be material or immaterial, I have left open to the consideration of my readers." (It stayed open for 250 years.)

Here is a link that gives am over view of the product (mostly Yamaha products aparently) https://uk.yamaha.com/en/products/musical_instruments/guitars_basses/ac_guitars/ta_series/index.html https://www.hyvibeguitar.com/ I am curious to know how the actuators (two small speakers fitted to the inside of the back of the guitar) affect the way the sounding board resonates. Is there some kind of constructive interference involved? Is there also physical amplification? Would most of the power in the vibrations of the sounding board come from the battery feeding the actuators or from the movements of the strings? …

Hello again. I am trying to determine the level sets of light intensity due to a spotlight cast on a flat surface. I am only taking into account the diffused lighting and no specular and no reflections for simplicity. I figure the light intensity due to the spotlight equals the following: (normal vector to the plane) dot product (unit vector from origin to the point in question) times (ray intensity function) times (ray dispersion function). The ray intensity function is a function of the angle between the center of the spotlight to the point in question. The ray dispersion function is a function of the distance from the origin to the point in question. For…

Dedicated to those who do not accept war Evaporation and condensation as a source of energy Your attention is presented to the concept of extracting the thermal energy of the environment based on the processes of evaporation and condensation of a substance that is in equilibrium "liquid - vapor". In our example, this substance is carbon dioxide, we will denote it in the figures as (CO2). Three heat-insulated sealed tanks are shown below: tank A with liquid carbon dioxide at ambient temperature, tank with piston and tank B with liquid carbon dioxide at sub-a…

I wouldn't say that measurement itself is an illusion. Due to Earth's gravitational pull, it directly effects the expansion of objects. It was recorded on March 2016, an astronomer Scott Kelly, grew 3 inches in space due to the lack of a gravitational pull. I would rather phrase that measurements is dependent on our external conditions, for example we have a basic unit system so that despite or own perspective we human can globally interpret our external conditions. Therefore, if our conditions changed like a different planet than we would have to change our basic measurement system.

As a SCUBA diver, the one of the most irritating aspects of the activity for me is a need to carry weights when out of water. I've noticed that there are quite a few SCUBA divers here, they might agree. Is it possible to solve this problem, or it would be against the laws of physics?