Bubble Definition and 221 Threads

Homework Statement Problem #13 on the attached picture (I can't retype a bubble diagram) Homework Equations I honestly have no clue. I know I'm not supposed to say this because I'm supposed to read my textbook first, but this is not covered at all in my textbook, this is a unit my teacher...

1. The problem statement, all variables and given/known da A soap bubble 500 nm thick is illuminated with white light. The index of refraction of this unique soap film is 1.35 for all colors (no dispersion). a) What wavelengths are not reflected? Homework Equations 2nt=mL 2nt=m(L/2) The...

For a system modelling a soap bubble, the differential work done is now given by: dW = −pdV + γdA, where γ is the surface tension and A the area. Compute new differential expressions for the potentials U, H, F, G. What are the new natural variables in each case? Are there any new Maxwell...

What if you were in a spaceship in outer space and had a sphere filled with water and some fish in it and then carefully removed the shell, leaving behind only a bubble of water. Would the water hold together and could the fish would swim outside the bubble and suffocate?

Hey all, Interestingly enough, I was actually recently feeding some ducks at a nearby pond when I noticed a cool phenomenon that I couldn't explain myself, so I was hoping you guys could assist in that. When you have two air bubbles over a liquid surface, like water, they seem to accelerate...

For a bubble in water in equilibrium the supporting forces due to pressure of the gas Pg and vapour Pv in the bubble must equal the crushing forces i.e. the hydrostatic forces Ph and those due to surface tension 2sigma/R0. So we have ##P_{v}+P_{g}=P_{h}+ \frac{2\sigma }{R_{0}}## Now we apply...

Homework Statement why the force of bubble is given by the formula of 2(2 pi R ) σs ? why not (2 pi R ) σs + (2 pi R+ ΔR) σs ? Since the radius of th outer circumfernece and inner circumference are the different ? Homework EquationsThe Attempt at a Solution

Homework Statement Suppose the temperature is 80℃ and we have a soap bubble that has a pressure increase of 40 [Pa]. What is the diameter of the bubble? Homework Equations ΔP=4Y/R The Attempt at a Solution I'm very confused about how to find the coefficient of surface tension (Y). In an...

Homework Statement What should be the pressure inside a small air bubble of 0.1,, radius,situated just below the surface? st of water=7.2 *10-2 and atmospheric pressure=1.013*105. Homework EquationsThe Attempt at a Solution I am of the understanding that the pressure inside the...

Hi everybody, I now encounter some problems when try to solve this: Problem statement: Calculate the work done to blow a soap bubble to radius R. Knowing that the process is isotherm, the atmospheric pressure is H, the surface tension is γ. Solution: $$A = A_{1}+A_{2}$$ In which A1 is the work...

If a bubble of quark type matter formed near the core of a magnetized neutron star, what would happen to its shape? Would it elongate along the magnetic field lines? Could it burst out of the magnetic poles of the star?

Homework Statement Imagine that you are blowing air through a straw in a cup of water and the root of the straw was connected through a rectangular box with empty base and every side of the rectangular box was cut into "teeth" shape. Bubbles will come out from the teeth of the rectangular box...

The apparatus consisted of a one gallon air tight clear plastic jug one quarter filled with ferrous chloride (uh, Fe(II)Cl ?), water and sufficient hydrochloric acid to complete the transformation. The remaining space was filled with oxygen at atmospheric pressure. When triggered a mechanism...

I am trying to predict the radius of a bubble at 0.4 m deep in a liquid. I know: the surface tension of the liquid (T) .002239 kg*m the pressure outside the bubble at .5 meters depth (Po1) 394.5 kg/m^2 the pressure inside the bubble at .5 meters depth (PI1) 394.723314 kg/m^2 the radius of the...

If you shake up a bottle of soda and it gets slightly larger because the disturbed gas in solution is trying to expand but cannot, could you use the difference in (THE SMALL AMOUNT THE BOTTLE ACTUALLY SWELLED) and the (POTENTIAL AMOUNT THE GAS WOULD SWELL IF NOT CONTAINED) to determine the...

I have seen 4 things happen when 2 bubbles come towards each other. 1) I have seen 1 or both bubbles pop 2) I have seen the bubbles bounce off each other 3) I have seen the bubbles come together and stay there 4) I have seen complete fusion of the bubbles into 1 bigger bubble that then...

How's the electrons of the accelerated electron beam enter the bubble chamber that contains the liquid hydrogen? Wouldn't the high intensity of the electron beam cause a massive explosion and destroy the bubble chamber that has an outer wall of at least quarter inch of steel! I think hydrogen...

Hi, I have a very interesting but challenging question. Consider any chemical reaction that involves gas production (e.g. H2 gas is produced in KOH etching silicon). As we know, the produced gas will detach from the surface and reaction can continue. What if the gas doesn't detach from the...

A hole in the LHC's vacuum bubble safety argument One of the four specific risks considered in the most recent official safety review for the Large Hadron Collider (LHC) is the possibility that LHC collisions could trigger a transition to a lower-energy vacuum state. The current review by the...

Homework Statement (1)The gas inside a spherical bubble expands slowly so that its radius is increases from R to 2R. Atmospheric pressure is ##P_0## and surface tension is S. The work done by the gas is ___________ Homework Equations work done against surface tension ##W_t = S.\Delta A## where...

Homework Statement Compare the weight in these 3 cases: http://imageshack.com/a/img913/4506/hlmnbL.png Homework Equations -- The Attempt at a Solution I think the weight is the same in three case, is it correct ? http://imageshack.com/a/img538/1879/rjJyK3.png

Homework Statement An air bubble of volume 20 cm^3 is at the bottom of a lake 40 m deep, where the temperature is 4.0°C. The bubble rises to the surface, which is at a temperature of 20°C. Take the temperature of the bubble’s air to be the same as that of the surrounding water. Just as the...

Homework Statement A spherical air bubble in a lake expands as it rises slowly to the surface. At the point it starts to rise, the pressure is 2.00 atm, the temperature of the water is 10.0 ∘C, and the radius of the bubble is 5.00 × 10^−3 m. At the surface, the pressure is 1.00 atm and the...

Anyone , what the bubble in the fluid will be if we compressed the fluid with high pressure? for example the fluid is oil with high viscous. does the bubble change in phase? (condense)

Hello, I am trying to find the required flow rate for stabilization of a bubble (to control the sinking and rising of bubble) in the water tunnel. I found the velocity of sinking bubble in the water (when the flow rate is zero) but I am not sure how to use that to find flow rate of my system to...

Homework Statement A 1-cm3 air bubble at a depth of 141 meters and at a temperature of 4 degrees Celsius rises to the surface of the lake where the temperature is 13.1 degrees Celsius, to the nearest tenth of a cm3, what is its new volume?Homework Equations P1V1/T1=P2V2/T2The Attempt at a...

There are the famous experiments, which show, how an Oxygen soap bubble gets attracted by a magnet due to it's paramagnetism. And how a Nitrogen bubble gets repelled by it (in air)But how does one calculate the attraction force of this pure Oxygen soap bubble in air due to a magnet. I'm Sorry...

As you may know the pressure inside a bubble of is greater than the pressure outside due to the surface tension. Now in my book the difference is derived by minimizing the Helmholtz energy such that: dF = - p_inside * dV1 - p_outside * dV2 + σdS, where S is the bubble surface area. This...

on a soap bubble colours can be seen.my textbook says its due to the interference betwewn light waves from the top and the bottom surfaces of thin films.but how?so confused:confused: i tried googling for answer but still i can't find it

Homework Statement A scuba diver is 17.4m below the surface of the lake, where the water temperature is 8.25∘C. The density of fresh water is 1000 kg/m3. The diver exhales a 23.6cm3 bubble.What's the bubble's volume as it reaches the surface, where the water temperature is 15.1∘C? Homework...

Suppose I want to make a good acrylic lens, with very few bubbles. Could my eyes tell the difference between perfection and standard optical quality acrylic? Would getting it very hot and low viscosity, and then centrifuging it, be a good way to separate out the bubbles and inclusions? How do...

1/ Like density in water change with depth, the number of chocs (from temperature) is not the same all around the bubble. The bubble have an additional up force I think. But the weight is directly the volume of bubble by the density of water. The weight can be change with temperature ? Maybe...

On Earth. Theoretical study. With a perfect liquid (no viscosity). A bubble in a column of liquid is moving up, the column is on a table, I have some questions: 1/ the force on the table increase/decrease when bubble is moving up ? 2/ the center of gravity of {column+liquid} is always the same...

I'm a bit confused by vacuum "fluctuations" (I know there is nothing fluctuating since vacuum is lorentz invariant) and their interpretation/representation by Feynman diagrams. In a normal Feynman diagram, you have energy conservation at each vertex, so overall energy conservation is ensured...

Can somebody tell me which example is right when a question that is given to me says to bubble sort a list of numbers 7, 12, 5, 22, 13, 32? I found two examples and one was with a graph that included Original List, Pass 1, Pass 2, Pass 3, Pass 4, Pass, 5, and Pass 6, the numbers with 7 on one...

Suppose a bubble with some small mass and constant velocity hits a bundle of "bubbles"- the collision is unusual- there is no dynamic friction but the point of contact sticks- they are springy so both compress by a third before returning to their former shape. The new total bundle can't...

Donald Glaser, Nobel Winner in Physics, Dies at 86 He invented the bubble chamber in 1952 at the age of 26, while at the University of Michigan. I think I was the last person to get a Ph.D. with the UM bubble chamber group, in 1982. (Glaser left for Berkeley in 1959, long before my time.)

Hello all, My son and I have been tinkering with (very low energy) particle experiments and observing them in a cloud chamber we built. Unfortunately these have a very limited amount of data that can be gathered from them. Now I know that there is no practical way of making the AWESOME...

I have 2 possibilities, non of them worked: PD: I am sure that all the methods inside this method(s) are correct and I am sure that the program's GUI is refreshing effectively. public void metodo1() { for (int i=0; i<(perros.size()); i++){ for (int j=perros.size()-1...

Hi I'm doing a project on bubbles, and I'm trying to find resources on bubble physics. My professor said that there is a classic on by clive, but couldn't remember the details, and I can't find it anywhere. Could anybody help? Recommendations for any other good textbooks on basic bubble...

Hello, I need to analyze some bubble sort algorithm and calculate the probability of each conditional statements(if,for,while,ect...) be successful. I can post the algorithms if you need to see them. Thanks in advance

Does anyone know of any sources / good books / websites which explain how to identify decay products of high energy physics reactions? Many thanks

If you were able to create a bubble that was separate from this universe space/time, would that bubble if standing still allow space/time to move around it thus making it appear as if you actually moved through space, even though space/time moved around you. Since we are moving thru space at 2.7...

What actually causes the bursting of a spherical air bubble? Is it because of the random collisions of air molecules with the bubble? But if that's the case, shouldn't the collision effects be symmetrical? I mean, if air molecules are colliding at one point of the spherical bubble, it's...

I'm sure a lot of you have heard of the warp drive theory. I can't seem to find much on the bubble part, though. In theory, will the bubble be something you can actually see and touch?

If bubble chamber tracks are formed by charged particles leaving a trail of ions as they pass through, by knocking electrons out of atoms, then why aren't there spirals of electrons along the whole track? Also, are the straight lines in bubble chamber photographs actually curves of a very...

Homework Statement A soap bubble of radius 0.1mm has a wall thickness of 3.3x10^-8m, and is charged to a potential of 100V. Give a formula for the charge of the bubble. I know this is probably a really easy question, but I've only ever done problems with spheres of negligible wall...

I came across a blog which posted a paradox and it really got me thinking. This is what it read: You have a perfectly rigid jar, which is sealed and filled with a perfectly incompressible liquid. Within the liquid, at the bottom of the jar is a small bubble filled with an ideal gas. Since...

Hello everyone, First - apologies if this is the wrong subforum for this question, I wasn't quite sure where it belonged. Thanks to everyone last summer who helped me with my science-fiction novel "Mindjammer", where I had some questions on solar shades - the feedback everyone provided me...

Two soap bubbles of radius r and R are in touch find the radius of curvature of their point of contact? (Both bubbles are touching each other with their external surfaces) I have no idea about this question. can you please try to help>