Oil Definition and 576 Threads

Homework Statement Homework Equations E = σ / 2ε E = Fel / Q The Attempt at a Solution E = σ / 2ε = 17.7*10-9 /(2*8.85*10-12) E =1000 N/C ΣF = 0 Fel + mg = 0 Fel = - mg 1000 * q = - 10-3 q = - 10-3 / 1000 = 10-6 C = -1μC Could somebody check my answer please ?

Hi folks! A while ago, we discussed a real-time simulation of an oil cycle within a combustion engine. Back then I was focusing on volume flow and pressure and you were incredibly helpful in coming up with the required formulas, so thank you again for your help! I'm now moving to the next...

Homework Statement Because of your technical background, you have been given a job as a student assistant in a university research laboratory that has been investigating possible accident-avoidance systems for oil tankers. Your group is concerned about oil spills in the North Atlantic caused by...

Homework Statement Calculate the charge on each oil drop and determine the elementary charge on an electron given the following: Voltage (Attached) d (Distance between two charged plates) = 0.10m m (Of the droplet) = 1.57x10^-15 kg g = 9.8 kgm/s^2 Homework Equations q = mg*d / ΔV The Attempt...

Here is the experience: I put two electrodes inside paraffin oil (separated by at least 3cm), and submitted the electrodes to high voltage. At 20000 V - 30000 V, strong streams can be observed inside the paraffin oil. Since paraffin oil is a good dielectric, I just would like to understand the...

I recently bought an old diffusion pump from eBay which I'm fixing up, and need 100cc of Santovac-5 oil (polyphenyl ether) for it. Does anyone have an idea where I can get a small amount (~100cc) of it to a reasonable price? What I've found isn't either shipped to Ireland or too expensive...

As I understand it, carbon composites are some combo of polymers and resins, which are derived from oil(black goo from the ground) as the main raw resource. However, as this is carbon, couldn't such materials be produced also from other sources, like corpses, plants, etc? I mean, carbon is...

<Moderator's note: Moved from a technical forum and thus no template.> Question: A certain amount of oil on the sea surface can be considered as circular form and the same thickness throughout its surface. At a certain time, the following are noted Data: Oil is supplied to the spot at 5m^3/min...

Good day folks! I am working on the simulation of an engine, and in particular the oil system makes my head ache. I already finished the calculations for viscosity and temperature, but now I'm stuck on coming up with formulas for pressure and flow rates. With what should I start? For...

Hi, when it comes to Transformer Oil testing, there are some parameters that we need to consider but i don't understand their definitions and i can't find their explanations online, so may someone please define these terms for me that what these terms actually mean? the terms are as follows...

is solar even viable way to replace oil? using just the current US joules consumption and the existing solar technology, is it possible to switch to solar if oil will run dry in say 50yrs from now? solar technology seems to be approaching some theoretical limits, somewhere around 30%...

This invention has made the rounds on YouTube and elsenet. In a nutshell, pop bottles embedded in a hut wall draw air in, and supposedly cool the air inside. As far as I can tell, they are claiming it is not just a cooling effect (due to increasing skin evaporation) but a temperature drop...

Homework Statement The center of a 1.40 km diameter spherical pocket of oil is 1.40 km beneath the Earth's surface. Estimate by what percentage g directly above the pocket of oil would differ from the expected value of g for a uniform Earth? Assume the density of oil is 8.0×102kg/m3. Homework...

Without getting into the environmental controversies about fracking, why would using diesel oil in the process be useful just from an engineering standpoint? Is it used to lubricate the machinery?

Could we classify oil shale as a biochemical sedimentary rock ? Oil shale is a muddy rock contains Kerogen. So I think in oil shale to be a mixture of Kerogen and mud sediments, and that's not the case, for instance, with the biochemical limestone where the solid remains of the living organisms...

Can anyone recommend a source to check fluid properties like surface tension, density, etc. Specifically, I'm interested in silicone oil DC-200. Thanks!

What are the electrical properties of standard lubrication oil (Engine oil)? Where to find? Please give the sources. I have tried my best on the internet.

Many petroleum rich areas are located within the Chicxulub impact effects radius, including Mexico, the Gulf of Mexico, Texas, and Louisiana. Cantarell, a supergiant petroleum field, is located directly within the impact crater. Did Chicxulub play any role in creating and/or preserving...

When oil is taken from the ground, it leaves a cavity that doesn't get backfilled. If material were taken from anywhere on a billiard cue ball, it would throw it out of balance. Trillions of gallons of oil have been displaced over roughly 100 years, shouldn't that affect Earth's rotation on...

Hi I am planning on building an immersion heater to heat oil when it is -20 C degrees outside. I need some help calculating the heat transfer. I want to find out how long it would take to heat around 10 litres of oil from -20 degrees to 10 degrees using an immersion heater with a constant...

Homework Statement : [/B]. in a milikan type experiment there are two oil droplets P and Q between the charged horizontal plates, as shown in the figure. Droplet P is in rest while Q is moving upwards. The polarity of charges on P and Q is: P. Q a). +. + b)neutral. -...

I was reading an article today about how Shell is discussing the move towards "cleaner" energy. This got me thinking. Eventually, most companies will be forced to move towards renewables as public opinion and natural resources become stacked against them. Many large oil and coal conglomerates...

Hi, We have seen water boiling at low pressures (vacuum jars), Will Oil also boil the same way in vacuum jar? Dilip

Fuel for a paraffin/kerosene inverter heater is sold typically in 20L containers (in Europe). They all claim to be highly filtered to remove odour, and burn cleaner. Customers are also given the opportunity to pay more for different brands, but they all seem to meet the same standards. The...

Life on Earth started approximately 3.5 billion years ago. On Earth's surface there was a finite quantity of carbon, among other finite building blocks of life. Organisms absorb this carbon, then they die. After death the organisms carbon (and other life essential ingredients) are released and...

if we have a vacuumed tube inserted into a reservoir of 10,000psi will the oil rise up in the vacuum tube of will it stay in place because there is no Δp?

Homework Statement In an industrial fryer is f.e. 400 kW. Heating capacity installed. The fryer may contain as much as 1.450 ltr of oil. I can fry 2.000 kg of chicken nuggets per hour in that. These products loose 7% of moisture/water in this process. That water can only escape from oil in gas...

Millikan Oil drop experiment. For my current lab, we are recreating the milian oil drop experiment to measure the charge of an electron. However, we are using 1-micron diameter latex spheres in place of oil drops. Problem: I am having difficulty deriving an equation for the speed of the drop...

hi guys, I'm supposed to write a paper and do some research on all aspects of drilling regarding torque and force need to drill an oil well and everything from start to finish and to provide mathematical proof and calculations. I don't know where to start and what are the equations used to...

Hi I am stuck on this integral question: An oil tanker aground on a reef is losing oil and producing an oil slick that is radiating out at a rate approximated by the function (dr/dt)=20/√t, t is greater than or equal to 1 where r is the radius of the circular slick in metres after t minutes. If...

Howdy y'all! If you could help with the following question, my physics class and I would be extremely grateful. A charged oil droplet is suspended motionless between two parallel plates (d=0.01m) that are held at a potential difference V. Periodically, the charge on the droplet changes as in...

I read on the internet that Coconut oil promotes collagen production, but my source on the internet does not say what coconut oil does to promote collagen production. I know that coconut oil is good for skin because coconut oil serves as a moisturizer. Does coconut oil only promote collagen...

Homework Statement [/B] A vertical cylindrical container contains 5590 gallons of gasoline and is 1.38 m in radius. Due to evaporation within the tank, the pressure on the top of the fluid is 2.5 times normal atmospheric pressure. The density of gasoline is 737 kg/m3Homework EquationsThe...

Homework Statement [/B] An oil filled system is shown in the figure below. The density of the oil is. In the figure(Figure 1)how much force does the fluid exert on the end of the cylinder at A? Homework EquationsThe Attempt at a Solution [/B] Solved for Poil using P = Po + F/A = 1.79 X...

Hi there I have a general question. I understand the process of light through a optically denser material, slower speed etc... but why would a laser beam in oil be easier to "see" than a laser beam through water. Cheers

As part of a racing community, there is a discussion going on that talks about compressibility of brake fluid. the Street car versions have a value of 6.5E-05 and the racing stuff is 4.5E-05 both at a pressure of near 5000psi. there is talk about the difference of the racing fluids which...

I am re-piping a oil line use for burning reclaimed oil and currently the oil returns to the tanks to the bottom of the tanks. I want to have them return to the top of the tanks to increase the mixing of the oil. My only problem is that their are two tanks that will fill up by the same oil line...

Homework Statement 1a)How does a ball floating 50% in water move when a LARGE amount of oil is added? 1b) if something denser than water were added, how would the ball move? 1c) if the exp. was done on the moon with different gravity and no atmosphere, how would the ball move?Homework...

How does a ball floating 50% in water move when a large amount of oil is added, and why? MY Solution: I think that the ball rises because when a large amount of oil is added, the oil sinks to the bottom causing the water to be pushed up, increasing the buoyant force which causes the ball to...

Hello, how we get oil from Earth at 5km how we get inform that there is oil inside it?

Homework Statement calculate the flow rate at which oil (kinematic viscocity = (10^-6) (m^2) /s ) flow thru a cast iron pipe 100mm diameter and 115 m long under head difference of 5m Homework EquationsThe Attempt at a Solution hf = 32μLV / ρg(D^2) how to get the value of μ( dynamic viscosity)...

I have to make an oil rig model with the size of 60x50x50cm by using recycled materials and weight will be added from 1 kg to 10 kg depends on its stability. How can I make this model float? thank you

Homework Statement When Millikan first performed this experiment, he used water droplets instead of oil. He found he could not suspend the droplets; they would start to move up. Why did this happen? Homework Equations N/A The Attempt at a Solution The water droplets would have been so small...

I have a hypothetical scenario I'd like to try understand, and I cannot find anything of the sort online nor in the forums. If I have a balloon of 1 m3 filled with oil, of a density of 850 kg/m3. Now I place this balloon in a body of water and tether it to a fixed point, how can I find the...

I'm Currently 19 and I'm starting University this coming September, and I've received a place at the University of Edinburgh to do Mechanical engineering. Now, I've always been fascinated about big heavy industrial applications of mechanical engineering such as oil rigs and I've never really...

Hi, I've been working on a problem for some time now and I can't figure out why exactly this happens, and I've been looking for some insight. The phenomenon can be seen in this video. We can see that the oil rearranges itself due to a high-voltage electric field. Thinking about this, my...

My question is: when oil and water from separate containers are poured into the same container and given time to equilibrate, is the entropy change positive, negative, or zero? I've been told that there is zero change in entropy because the water and oil do not mix at all. However, I suspect...

i just choose this topic for my final year project where i need to search and conducting an experiment to determine its effectiveness. But since i am so lack of knowledge for this particular scientific experiment, i would like maybe a further explanatory here. Any thoughts or ideas about this...

Dear PF Forum, I have searched biodiesel through internet. There are good answers there. And also in Physics Forum, and I come across these two links from PF Forum, which are a very good links. http://biodiesel.org/ http://nbb.org/ And I also consulted LIPI (Indonesian Science Establishment)...

Hi PhysicsForums, Here's a thin film interference question I'm having problems with. An oil film (n=1.50) floats on a water body (n=1.33) in an air environment. Normal incident white light is reflected by the oil film. But in the spectrum of reflected light, 500nm and 700nm light are missing...