Classical Physics

I have a chart and a graph for a ferrite magnet grade 5 / Y30, but I do not understand them and want to know what is the pull force of the magnet and how to read it on these 2 documents?

I want to calculate MOI using torsional theory, need some query regarding. if the axis of shaft and cg of object do not coincide then how we will proceed?

https://en.m.wikipedia.org/wiki/Clothes_iron Do you feel a small glass display indicating the current operating temperature in digital display degree celcius or Fahrenheit of the clothes Iron could be useful to the end user who is ironing clothes? Thanks & Regards, Prashant S Akerkar

https://en.m.wikipedia.org/wiki/Ferris_wheel Is it possible to design and manufacture a concentric Ferris wheel ? If yes, how? If no, why? Thanks & Regards, Prashant S Akerkar

https://en.m.wikipedia.org/wiki/Gas_balloon Practically, How much we can inflate a gas balloon i.e fill it up with gas ? Why after a certain air is filled in Balloon the Balloon bursts ? Can we measure helium or hydrogen gas filled in Balloon ? I mean weight of the gas in the inflated balloon? If yes, how? If no, why? Thanks & Regards, Prashant S Akerkar

Hello everybody! Because it is small, like 10-5, measuring the para- or diamagnetic susceptibility (chi = µr-1) of materials is uneasy. Overview of Methods for Magnetic Susceptibility Measurement P. Marcon and K. Ostanina describes several setups. The Gouy balance and the Evans balance measure a force, often for liquids https://en.wikipedia.org/wiki/Gouy_balance https://en.wikipedia.org/wiki/Evans_balance http://www.iiserkol.ac.in/~ph324/ExptManuals/quincke%27s%20manual.pdf An other method uses a Squid, which is sensitive and differential by nature, but demands cold. The less expected setup measures the tiny change of coil (or transformer) induct…

Sir Isaac Newton's law of gravity deduces or measures acceleration due to gravity constant as g=9.8 m/sec square which we apply universally in other equations.. How this was measured or deduced? I mean why not 10 m/sec square Or 9.5 m/sec square or any other value ?. Thanks & Regards, Prashant S Akerkar

Trying to clear my doubts before my test. Thank you!

Is it possible to design and construct Cathode ray tube (Television, Camera) in other geometrical shapes ? Current Geometrical shape is Cylindrical, Funnel. If yes, How? If no, Why? https://en.m.wikipedia.org/wiki/Geometric_shape Thanks & Regards, Prashant S Akerkar

https://en.m.wikipedia.org/wiki/Archimedes'_principle Formula derived : F= Rho × g × v rho is liquid constant. How the value of Rho = 100 computed or derived ? Thanks & Regards, Prashant S Akerkar

When you measure pressure as you go down, when you say it's "1 atmosphere", are you treating the atmospheric pressure above as 0 pressure and it's relative to that?

Static force beings force fields and active forces being EXERTED forces

I think I heard Richard Feynman say that electrons move around the nucleus in perpetual motion. What does he mean by this? Sorry if I am wrong, if I am, please explain perpetual motion.

This is a formula for finding orbital clusters around each element I worked on about a year ago, but, I could not find anyone on the forum to confer with me the ideas presented by myself. This follows, after the liquids, when metals begin, it takes on a formula. If you ever played dungeons and dragons, the magician's spell advancement table will show you the amounts of orbitals per level or proton beyond first, of course. This means there is one s orbital, or 'level one spell' at firs level, then, two s orbitals or level one spells at second level, then, a third new type of orbital with those previous ones at level three or with the third metal. At the fourth me…

Conservation of energy, energy can be neither create or destroyed talks about energy as if it is something. Where as talking about energy in classical mechanics is usually where "the ability to do work" is used. Even e=mc2 has ambiguous use of Energy equating mass with energy that means mass = the ability to do work rather than some tangible quantity that actually exists in some way.

Hydrogen-1 (protium) is an isotope of Hygrogen yeah? It has one proton in the nucleus and one circling electron? So is Protium just another word for hydrogen itself?

Most people involved in electronics already know that metal expands when it's heated. They also know that it happens on a circuitboard, and that under normal circumstances this is normal and won't cause breakage. But... When a circuit is being heated a very long time (without pause), and itself is relatively long, the metal will force the cohesive layer which attaches it to the circuitboard to comply with it's lengthening.. Then, when the device is shut off, the metal circuit will cool down, and will try and force the cohesive layer to comply again.. The cohesive layer will not comply this time, and tension increases, until the circuit b…

So, i have a question about light. When light strikes a surface does it instantly jump off, or is there a small amount of time in which it "sticks" to that surface? If it sticks could we, in theory, spin an object so fast that we could see through it by having that "stuck light" go around the object? I think someone might have put weed in my cereal. Thanks in advance!

Do you feel Juggling game can be introduced in future Olympics games. The sports category will be "Gymnastics". Thanks & Regards, Prashant S Akerkar

Can we derive Reflection of Sound laws i.e. Echo? Thanks & Regards, Prashant S Akerkar

It is winter in Australia so heating and bills for it is on everyone's mind. I was just trying to decide what method of keeping my house at reasonable temperature would be the best. Suppose the total volume of heated premises is around 550 cubic meters, and if gas ducted heating is turned off, it cools down from 20 to 17 degrees in about 2 hours. I could either turn heating on in short bursts getting the temperature up to around 22 degrees and then turning it off for a couple hours until it drops to 19-20. Otherwise, I could just keep heating constantly on at 19 or 20 degrees. Which method is more efficient?

Ok, I have a question. Is it possible to fully model the conversion and the transfer of energy using only mechanical waves propagating through matter? Like say you have an energy conversion path; Mechanical => Electrical => Chemical => Thermal => Mechanical. So from Mechanical to electrical, there would be a turning of a motor to transfer electricity right. So when an individual spins the motor they are actually sending small mechanical waves through the solid in order for them to rebound and reflect to create a turning motion. This, in turn, causes a rotation which induces an electrical current which is actually just the movement of electrons through a wire w…

If you really think about it, it doesn't make sense. If the air coming from the fan is moving faster than the other air in the room (which is the whole point of a fan), doesn't that mean the air from the fan has more kinetic energy than the still air? And isn't kinetic energy basically just a fancy word for "heat?" So by making the air move faster, shouldn't that make the air feel hotter than the still air?

Hey all, It’s been too long since I showed my digital face around here! But I am stuck on a question and this seems the #1 place to get some quality feedback, so I dug up the password and logged in. All is well on my end, hope you’re all doing great too. Tl;dr Other than gravity itself, orbits of celestial bodies and the attraction of objects (i.e. people) to the celestial bodies, what else would be affected if you change the gravitational constant from 6.67*10E-11 to something a lot larger (say 6.67*10E-9)? Longer version In a fantasy universe, such as exists in the Kerbal Space Program universe, planets tend to be 10x smaller th…

In the case of neutrinos infalling a black hole, are neutrinos thought to have any different reaction to the hole vs. any other massive or massless particle?