Classical Physics

Hi all, I am after some help regarding equations that i have dug up. If anyone wants to take a look and can let me know if it is valid work please reply and i will post a sample. The equations relate to the prediction of roulette by measuring the forces acting on the ball and rotor. Prediction of roulette using various computer methods is possible as shown by Edward O Thorpe, Norman Packard, Doyne Farmer and many more since. It is also possible by using timings and / or visual clocking (a rare skill - two exponents are Laurance Scott and Pierre Basieux), If you don't believe it can be done do a quick search for any of them on google (obviously a massive majorit…

hey just wanted to check if my answer for the following question is correct... Thanks Sarah

could i have some help with this question, i just can't quite figure out what to do.... for part a i said a) a) the torque exerted by the 80N block via T1. The torque exerted by T2. The torque exerted by the side thingy ‘wall’.(i.e. the hinge) but i dunno how to do the next few bits.... Sarah

determine if the following sets of vectors are vector spaces: V = {(x y z) from R^3 | ax + by + cz = 0, a, b, c from reals and not all 0} Help would be much appreciated

To enhance life through the use of air pressure it is now available to produce energy with compressed air. I know. i have done it. A turbine, a generator and an air compressor is all you need. Any questions? e-mail me

Is frequency the sound wave produced that vibrate our ear dump through our mouth directly the same as that of the one spoken?

Why is it that when you shine laser beam through the double slit, you get a whole bunch of dots?

I was just reading a website about electrostatics (revision for exams) and there was a 'try this at home'... take a ruler and a few (quite, or very small) pieces of paper then rub the ruler with a jumper sleeve (or that's what I did) then place the ruler just above the small pieces of paper and due to electrostatic charges the paper will jump and be attracted to the ruler. It's one of those simple things that everyone can do at home! This is one of those single posts threads, no reply expected, just thought it was quite cool - you just see it happend and it's like that's why I love physics! I was doing all the electronics/magnetics yesterday but it just isn't …

how do you calculate the amount of force the electric field departs onto the charge after it has been released from its static position math welcome

How to cancel out earth gravity. This looks like it can work, if not for the reasons stated. Second opinions required. Ps. I have seen some private experiments on variations on this theme. http://www.rexresearch.com/gravitor/gravitor.htm some demos. http://jnaudin.free.fr/html/liftbldr.htm

If we boil a beaker of water, then we put a thermometer above the surface... that is, we are checking the temperature of steam and we always get 100 degrees Celsius under normal pressure right? so is it possible to have steam over 100 degrees? how about we collect the steam and then heat it up is it still 100 degrees? thanks

Ok this sort of came from YT's thread so i'll ask my question here:) In the eqn f = ma Lets say the object accellerates to 99.999c (lets just say light speed to keep it simple) Then wouldn't its mass change? That means that the force would be different when the acceleration is equal and the mass is determined by how long the object has been accellerating? I'll give an example. In a normal situation two identical objects traveling at the same constant acceleration will have the same force even if one object has traveled for 2second and the other for 4seconds But if you lets another object, identical to the other two mentioned but let it accellerate for a realy long ti…

a thought occured to me about this, HOW does Radiation fall into this energy type(s)? a strongly radioactive substance, is it kinetic energy at a rate, with potential energy stored? or is it something else entirely? ta

For anyone that saw Tiger Woods' super putt yesterday in the masters. It just stopped for a second before it went down the hole. I mean the ball did actually stop for a second or two. The question is: Did the ball fall due to gravity or do you think that the crowd roaring caused vibrations and the ball fell? I think it may have been a bit of both.

Hi!, I have been trawling the net for a several hours and would appreciate any help. Is it possible to physically move nitrogen molecules (in gaseous form) using Electromagnetic radiation? What I have learnt so far: 1. EM waves carry energy, have momentum and exert radiation pressure on any object absorbing them. This absorption depends on the how heavy the atom is .... 2. This pressure is proportional to the amount of power carried by the EM radiation per unit area. 3. The size of nitrogen molecules is .3 nm (.15 per atom) and they would absorb EMR of commensurate wave length. 4. This wave length falls in the Xray portion of the EM spectrum Fro…

Is there a natural "tendency" for objects to "tend" towards rest in the "big bang track" or "the CMB isotropy frame" if undisturbed otherwise? (other than by the CMB)

Why the gamma ray and X-ray emitted by the sun does not affect our life much?

Are lines real? I mean as in we as humans alway try to put things in a linear form, So are the actual things that were created or were they created by us to better explain the world and things around it? By Lines I mean as humans we try to put everything on a line in a linear patter, for example when you graph points we try to make a line with those points Why do we do that? BY the way I am very young not any older than 9th grade and yet i still am giving you questions you can't answer and thinking deeper than many people on this site.

Which of the sound wave travels at a higher speed? In air, In carbon dioxide.

Why the amplitude of a wave increases when it passes from shallow region to deep region?

Hello, I put a box on a scale to see how heavy it was. The scale only went up to ten kilos but the box was heavier than that. However, the needle did spin around 1.5 times so I figured the box was about 15kgs. Then someone came out with the comment, "You're no scientist, are you! It's not a linear scale. Once it goes past that point it is no longer accurate." Is that true. TIA, Jez

I have a Compaq Presario X1000 laptop computer, and I was wondering how durable it is. I posted about this in the computer forum, and they said it was something like: vibration: 0.5G at up to 200Hz shock: 23G faired square wave with velocity changes of up to 508cm/sec I don't know what this means, and I was wondering what a real life comparison would be. None of the people in the computer forum knew, and they said to ask about it here. Does anyone have a comparison? For example, is this like being in the trunk of a car, or falling down stairs? Please let me know. Thanks.

I have done a lot of searching on this topic and haven't found any answers. I may be overlooking something, but here is what I'm wondering about: From memory the formula is G*M / (r + h)^2. For example, at Earth's surface it is 9.8 m/s^2. It seems that the acceleration due to gravity only takes into account the "planet" or "base" object. I'm guessing this is because the object that is in free fall is always assumed to be so small (relative to something like Earth)that it's own gravitational pull is unimportant. However, suppose that the object in freefall is of similar size to the earth. Or if you had two earths that started out at x distance from eachother. Ho…

Why a change in frequency seldom affects the original wave speed of a wave? Besides depth of medium, what factors affect its speed? What happens to a transverse wave if we increase its frequency by flicking one end of the rope with a higher speed? Will the speed of the wave increase?

Why interference still occurs when a beam of red light passes through a hole created by the slits? The screen captures different brightness of red light. If there are no interferences took place, the brightness should be uniform.