Science & Mathematics - 10 September 2006

2006-09-10 02:05:58 · 3 answers · asked by flignar 2 in Astronomy & Space

2006-09-10 02:04:06 · 10 answers · asked by Anonymous in Chemistry

2006-09-10 01:54:30 · 5 answers · asked by Anonymous in Chemistry

Actual gas applying work outward in gravitational field
will be influenced by process
Bo miao
Shenzhen Sanyou
Abstract: the paper solved the distribute of density and pressure intensity in gravitational field ,and indicated the effect from microcosmic interacting to macroscopical thermodynamics , then base on that to research the actual gas in gravitational field : actual gas in two container with different tall , connected by two microtubule , if the capacity change (isothermal) ,gas will apply work .the magnitude will be influenced by the changing mode(process) of capacity .we can get the conclusion from the First law of thermodynamics ,the absorbing heat will be influenced by the changing process of capacity .
Keyword: The second law of thermodynamics, entropy, Green' s indentities, actual gas, Clausius equation

plz read pic as follow

http://bbs.tech.163.com/tech23/10366,0,50,0,40,0.html?userid=-0ZGV

2006-09-10 01:52:01 · 2 answers · asked by jaczbcmb 1 in Physics

I know that black holes suck almost anything, including light. But when it slowly eats a star, the gas being sucked line up and rotates around the center of the black hole before the gas hits the center, thus giving the fact that black holes 'rotate'. Is there an explanation about this rotation?

2006-09-10 01:46:50 · 8 answers · asked by Anonymous in Astronomy & Space

2006-09-10 01:44:30 · 5 answers · asked by amal m 1 in Earth Sciences & Geology

I read in a newspaper that osama would countinue fighting until eveyone on eath becomes muslim... is he gonna make a world war 3? some old guy(dead) who (miraculously) predicted about ww1 and ww2 way b4 he died, also predicted ww3. he says the whole world will end by some huge fish-like thing which will fall from the sky... is that relly gonna happen? is osama gonna start ww3 and use a nuclear weapons? fish like thing falling from sky cud b the nuclear missile.....

2006-09-10 01:42:58 · 7 answers · asked by crucio2_2005 1 in Other - Science

2006-09-10 01:39:33 · 5 answers · asked by hitman812001 1 in Mathematics

Does anyone know what is interesting about ffffff...(x), i.e. the function of itself many times over. Also written as f(f(f(f(f(f(f(x)))))))

For example if:

f(x) = 3x + 9
then what is special about repeating this, i.e.
ff(x) = 3(3x+9) +9
fff(x) = 3(3[3x+9]+9) + 9

and so on...?

Is there something interesting like a special pattern once they're all mutiplied out?

Best answer with clearest explanation scores 10 points!

2006-09-10 01:38:28 · 4 answers · asked by Anonymous in Mathematics

Three cyclists go out for the day. Two are on a tandem and one on an ordinary bicycle. Disaster struck when the ordinary bicyle was stolen while they were having lunch. They were left with the tandem and 20 miles to go. The tandem has to have two riders and the third person walks. Mary can walk a mile in 20 minutes, Ben in 30 minutes and George in 40 minutes. The tandem travels at 20 miles per hour no matter which pair is riding it. What is the shortest time for all three to get home?

Any answers, and any explanations?

Have fun... 10 points for the clearest explanation with answer.

2006-09-10 01:25:09 · 6 answers · asked by Anonymous in Mathematics

2006-09-10 01:23:28 · 9 answers · asked by dinoman 2 in Other - Science

and why do people use the term "i fancy"??????

2006-09-10 01:22:56 · 11 answers · asked by sashlou 3 in Weather

2006-09-10 01:21:59 · 10 answers · asked by fufu 1 in Botany

2006-09-10 01:19:30 · 6 answers · asked by Anonymous in Physics

I was watching the NASA feed of the space shuttles orbital path and it appears to be a vertical slalom when projected against a map of the earth. Pardon my ignorance but why isn't it circular or ellipsoidal ?
Thanks

2006-09-10 01:16:56 · 3 answers · asked by Anonymous in Astronomy & Space

I exactly want to know if it is possible to increase the volume of a metallic wire, only by increasing the length and keeping the cross sectional area constant. Is it not possible by applying an axial load ?

2006-09-10 01:15:58 · 12 answers · asked by Arun 1 in Physics

2006-09-10 01:13:17 · 11 answers · asked by se f 1 in Medicine

The logic conflict of the second law of thermodynamics

The description of the second law of thermodynamics is that the thermal activity of an independent system always make entropy increase and make it maximum(stable balance)
There is some requirement for the subject of the second law of thermodynamics, which is independent system. While for the following independent system, there are problems when the second law of thermodynamics is applied. There are two cups A and B of water on the table. There are many floating charges. The outside doesn’t have any effect on them. So overall they can be viewed as independent system. From the second law of thermodynamics, the system should have a stable balanced state. From part like A, It is affected by B’s charges. So it cannot be viewed as independent system. And it is a big question whether it has a stable state or not. The same applies to B. Same subject and different conclusions show that the theory has disadvantage when applied to such subject.
Whether the system has stable state or not, should be determined by physical equations which should includes heat and electricity.
1 Poisson Equation
2 Boltzman Equation ρ=A*exp（qu/kT）
It is hard to solve the equations. They are not linear. From instinct, the probability of that they can be solved is very small.
It shows the second law of thermodynamics is only practical when there is not long-distance system. For example, there two internal combustion engines working in a classroom. The interaction between them is universal gravitation, which is too small and the effect of it can be negleted.
But the universal gravitation between celestial bodies cannot be negleted. It will also ruin the independence inside a system. Any galaxy is affected by other galaxies. So the second law of thermodynamics is not suitable anymore. Theory of heat death of cosmos is practically meaningless.
The above is obstacle of language and logic. The following two parts of discussion is on problems of calculation.

2006-09-10 01:09:03 · 1 answers · asked by jaczbcmb 1 in Physics

2006-09-10 01:07:39 · 13 answers · asked by Alex P 1 in Astronomy & Space

2006-09-10 01:04:49 · 15 answers · asked by Anonymous in Physics

Facility is equipped with UPS,HVAC,Lighting,Kitchen,Chillers,Chilled water Pumps,Blowers etc.)

2006-09-10 01:01:30 · 2 answers · asked by nag r 1 in Engineering

2006-09-10 00:58:10 · 9 answers · asked by Alex P 1 in Zoology

Lam, cows eat only green stuff like grass and they are full of fat and produce milk and butter..does anyone knows why?

2006-09-10 00:56:22 · 13 answers · asked by Abularaby 4 in Biology

If so, how would one weigh it?

If not, why not?

2006-09-10 00:55:10 · 16 answers · asked by Buzzard 7 in Chemistry

The equation H=G+ST is not correct under the condition of remote-interaction system.
miao bo
The second law of thermodynamics shows that there is some constraint condition in the process of heat energy’s transform into function, which is that heat energy can be divide into two parts: the ordered energy ( can be transformed into function) and disordered energy( can’t be transformed into function).
This is H=G+ST
Suppose a system whose different parts have different temperature, which is the common analysis by physics who often divide the system into many little parts and each parts’ temperature is think as the same, then the above formulation can be rewritten as the following.
h=g+s*T
Using g and s is very common in the advanced theory of thermodynamics. Even if the temperature is the same everywhere, using the equation h=g+s*T, is more correct, because it maintain the continuity of physical law.
Now let us image an object with electricity and each parts are interacted with others by the remote electromagnetic, it is natural that electromagnetic energy doesn’t belongs to any local part. In this system, we can’t divide it into many parts, but the temperature has the local part’s characteristic. So the formulation h=g+s*T can’t be applied. This has essentially broken the world of ordered energy and disordered energy.

2006-09-10 00:54:40 · 2 answers · asked by jaczbcmb 1 in Physics

2006-09-10 00:51:21 · 7 answers · asked by crucio2_2005 1 in Other - Science

2006-09-10 00:50:04 · 21 answers · asked by walliswinston 1 in Other - Science

Calved 2 months back.Tenesmus evident .staggering gait,raised tail head also observed

2006-09-10 00:41:51 · 1 answers · asked by ceyemn 1 in Other - Science

2006-09-10 00:38:17 · 5 answers · asked by -via- 1 in Medicine

i want to know awhich telescope would provide better images and what would be the size of image

2006-09-10 00:35:05 · 4 answers · asked by Anonymous in Astronomy & Space