Classical Physics
Vector forces, gravity, acceleration, and other facets of mechanics.
2879 topics in this forum
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Is there a similar animation (https://gifer.com/ru/9Lt6) for two waves? I wonder how the particles move in the place where the waves are applied. I apologize if I write with errors. I know English bad.
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Is there somthing like that maybe? Android or iphone app please if somebody knows
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Im just an ordinary guy with a question, dont know mych about physics.. here is my question.. How do we know that light travels in waves compared to a forward circular motion?
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I was thinking about the abrupt change in lakes, where you have a distinct cold layer at a certain depth in the summer time. I thought what would happen if you mix the the water, but have a flat spinner that spins in the plane that separates the cold and hot water (and not spinning as to randomly mix the cold and hot layers in weird folds the other direction). Centrifigual force would separate the cold and hot, because the hot would move further out in the spinning plane, and then the cold layer would form a bubble that would float up to the surface. In an efficient circuit, the heat surrounding the circuit, there should be a cold layer right next to the surface (i…
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Geostrophic turbulence is a physical expression what refers to?
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What type of cheap and non-toxic liquid can efficiently absorb radio and microwaves? It could be a solution. So, for example, when you put a mobile phone into this liquid, it doesn't suppose to work (not because of a short circuit).
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I have a question relating to supercritical fluids and their compressibility as compared to that same substance in liquid form. Let’s say we took 500g of water and turned it supercritical. Would we be able to then compress that fluid to a greater extent than we would that same mass of liquid water at the equivalent pressures? My instinct tells me no, but I can’t find any actual sources to back that up.
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Dear All, If I have two conductors in a homogeneous ground (constant resistivity), parallel to each other and of the same length. each of them has got a transverse resistance to earth. I'd like to find an electrical model to represent the mutual resistance between these two conductors. Is it possible to do this by an analytic approach (and not only by finite elements) ? I was thinking of splitting each conductors into a given number of segments. Thanks for your support. Regards.
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I bought a very cheap digital hygrometer and used this method to check it: https://www.wikihow.com/Test-a-Hygrometer . Can someone explain how the salt/water slurry regulates atmosphere within the bag to this specific figure of 75%? My device measured 76%... close enough. I mixed it to a consistency of snow. Here's my test setup. It's actually reading 75% now. If you move the apparatus the measured humidity changes a lot then settles back to 75%
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It seems in a dry Tantalum capacitor a thin (few nanometers) layer of Tantalum oxide separates electron conducting metallic Tantalum and hole conducting semiconductor (typically MO2). How in this case a huge charge leakage through quantum tunneling is prevented? For example Aluminum in normal conditions is also covered with thin layer of Aluminum oxide, but it doesn't prevent us to get electrocuted if we touch live Aluminum wire. Because layer of Aluminum oxide is too thin to prevent quantum tunneling of electrons. Why in Tantalum capacitors it should be different?
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My mother is a devoted religious woman. She sends me pictures of signals in the sky and other miraculous events whenever she sees or hears of one. As I have distanced myself from religion, I usually point out to her the reasons of the events and apparitions she so often marvels about.For instance, in the image named Incendio-Notre-Dam-Jesús-3 I told her that the image the falling debris took in her and thousands of people´'s eyes was the result of coincidence and shape and form associations the human brain is able to create.In the image virginwall, she saw the shape of virgin mary, which, after I noticed it was being produced right above an outlet and electric devices, I …
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In this simple diagram I am representing the displacement of an object from point a to point b (see below very short video explaining the concept) record_000010.avi I have put the axis X & Y, so the displacement takes place in the two-dimensional space of a sheet of paper. The sheet of paper is in orange colour Since we are talking about an “object” it is commonly understood that during the displacement, the object will go from a to b following the path [a,b]. When the object will reach point b, it will have gone from a (that looks evident but wait & see). The line ab is a path. Now, it is also known from the laws of physic…
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Hi. If a vehicle centre of mass is below the blue line that joins shafts; applying brakes makes the rear axle heavier and increases rear tire friction with pavement resulting in shorter stopping distance. Is that right ? If a vehicle centre of mass is above the blue line that joins shafts; applying brakes makes the rear axle lighter and decreases rear tire friction with pavement resulting in longer stopping distance. Is that right ?
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How did Energy and Matter appear and how are they initially loaded into the system? What is the reason that they are present and they do not disappear without a trace?
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I have been thinking about the “past” in the universe and what the past mean to us, and I came across a thought that I would like to share and hopefully get some feedback and discussion. When reading books on astrophysics, they all mention that the universe is expanding, and probably has been expanding for some time now. That means if there is a star close to us today, tomorrow that star will be farther away, because the universe is expanding. Let’s imagine that from earth in the year 2019 we can see the Star “X”. Then, in the year 3000 the universe has continue to expand and therefore Star “X” is farther away from us but we can still see it. 10.000 years later, as t…
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For my Physics class I need to create a mouse trap car that needs to survive a three foot drop and go 1 meter to get 100%. I am wondering if any of you guys could offer any ideas to help me with my project. Your help is greatly appreciated.
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Where did I go wrong? Pascal is kg .metre ² . m sec². Why is it 1.019.. and not 1? Why is MPa not 100kg F cm² ? "1 megapascal [MPa] = 10.1971621297793 kilogram-force/centimeter²" If .5kg at 40msec² strikes on 1cm² is that 80 or 8MPa?
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Would a metal magnetic ball, one of those super magnets, inside a cage of copper insulated from most outside sources by wood display any unusual properties?
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According to Henry's law, what quantity of air will dissolve under, the constant ambient temperature of 25°C, using 100 Cubic meter of fresh water ( not sea water )? All these water is kept in inside confined pressure vessel with a long pipe with constant air pressure being maintained using an air compressor and the same water is made to circulate constantly within inside the pressure vessel. Now the question is how much gas going to dissolve in 100 cubic meters of water ( 1,00,000 Liters ) under the above circumstance and how much time is required to make an equilibrium state. can somebody help me to solve this along with equation? Thanks in advance.
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Hello forum, This is probably a rather unusual question, but I hope you can shed some light. I'm a physics and astrophysics amateur and rookie and I find it absolutely amazing. I would very much like to contribute to this science area as a multimedia graphic designer (that's my profession); and I would like to know if there is any demand or need for design in the field. Thank you in advance.
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i have attached a picture attempting to show you some detail. in the picture it depicts wire configurations to exploit the lorentz force on a current carrying conductor so the force vectors on part of each current loop are up. ive been attempting to use current loops to get this to work, but its not much more than a rail gun... the question i have is: aside from the rails repelling each other in a rail gun perpendicular to the armature vector, is there any reason the armature cannot be welded to the rails and enough power applied to force the whole contraption off the ground; and not shoot off like a bullet?
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i need some help answering this question about calculating force on a portion of a coil. got it from here: if lines DK < KC, lines AJ < JB, lines AJ = DK,and lines AD = BC i can calculate the magnetic field from each side at point P with: B = [μ0I/4π(L/2)] [Sinα +Sinβ] (the same α, L and β variables used in the video) how do i calculate the force on coil C1 line JK if both coils magnetic fields come out of the screen? (picture, not video) -DT
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I was looking at this example attached, if I change the origin, I get two times the answer from the book. My attempt is hand written on the attachment. Why is my answer different.
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I always thought that escaping gas pushed the rocket along by pushing against atmosphere. Yet rockets work in space. How does that work ?
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Sound waves are part of the electromagnetic spectrum as are light and radio waves. However, sound waves cannot pass through a vacuum. Why/how is it that they cannot?
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