Oil Definition and 552 Threads
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Transfer Hydrogenation of Olive oil by Cyclohexene
Hi, I was just wondering. In the reaction formula I have olive oil with 3 double bonds and cyclohexene can only hydrogenate 2. How do I hydrogenate all three?- evry190
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- Oil
- Replies: 1
- Forum: Biology and Chemistry Homework Help
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Oil Refinery: Optimization Problem
Homework Statement A drilling rig 12 miles off shore is to be connected by a pipe to a refinery onshore, 20 miles down the coast from the rig. If underwater pipe costs $40,000 per mile and land based pipe costs $30,000 per mile what value of x and y would give the least expensive connection...- sobek
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- Oil Optimization
- Replies: 1
- Forum: Calculus and Beyond Homework Help
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Calculating Pressure for Oil Seed Pressing with 80 kW PTO Shaft
hi there, i need some advice please. I am a farmer that wants to press some oil seed rape. i have a tractor that produces 80 kw of power at its pto shaft (Power take off) and i want to use this rotational power to produce a reciprocating motion eg back and forth motion. The pto shaft has...- paulwh
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- Oil Pressure Seed Shaft
- Replies: 2
- Forum: Mechanical Engineering
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Pumping Warm Crude Oil: Calculating NPSA & Velocity Head
At an oil refinery, a mobile centrifugal pump is used to pump warm crude oil from a storage tank. Liquid level in tank at elevation of 3 metres above pump. Suction side of pump is fed with a flexible hose that is 10 metres long. Crude oil density: 846 kg/m3 Crude flow 4000 kg/h Internal...- pray4mojo
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- Head Oil Velocity
- Replies: 4
- Forum: Mechanical Engineering
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Fanless convection heater versus oil filled heater
Both are near silent and 100% (in)efficient, but does the convection heater (with the electric coil where heat rises naturally) make the room more stuffy as I've sometimes heard, or perhaps even deplete oxygen?- Twinbee
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- Convection Heater Oil
- Replies: 2
- Forum: Thermodynamics
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Is 85% the highest efficiency we can achieve with PV technology?
If there somehow was a way to produce electrical energy endlessly (as much as we want with no pollution or environmental issues), we still can't really say we can do away with oil anytime soon b/c of the inability to make high quality good batteries. First of all, there probably isn't enough...- gloo
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- Energy Oil
- Replies: 82
- Forum: General Engineering
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Lab help (Millikan oil drop experiment)
Hello, We did a lab in class yesterday and we are expected to write a report and graph our results. The lab was a simulation of the Millikan oil drop experiment. We used graphing calculators to do the simulation and took down 15 results. One thing i don't understand is how to come up with the...- Matt1234
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- Drop Experiment Lab Oil
- Replies: 2
- Forum: Introductory Physics Homework Help
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Oil Industry: Does it Hire Physicists?
Greetings!. I am about to obtain a Masters degree in physics. I am working basically with EM wave propagation phenomena. I would like to find a job in the oil field, especially in the exploration field. Oil industry in big here (Western Canada), but I am not sure about my chances of finding a...- kamuss
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- Industry Oil Physicists
- Replies: 2
- Forum: Earth Sciences
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Oil temperature in a hydraulic hand pump
If anyone here has experience with hydraulic hand pumps(those 10000 psi models), could you tell me how hot the oil, and by extenstion the pipes get during compression?- trini
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- hand Hydraulic Oil Pump Temperature
- Replies: 5
- Forum: Mechanical Engineering
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Incredible Power of Oil: Stick Diamonds to Windows!
I read on the news that when you place oil from behind your ear onto the diamond. You can stick it to the window and the adhesive power will be so strong that you can place a metal pincet on it. Any explanation? http://www.standaard.be/video/videoPlayer.aspx?cat=1&subcat=1&videoId=352871- katchum
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- Oil Power Windows
- Replies: 2
- Forum: Other Physics Topics
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Where on Earth are possible coal and oil of tomorrow forming today?
Where on Earth are possible coal and oil of "tomorrow" forming today? Where on Earth are possible coal and oil of tomorrow, as in many many years from now, forming today? Thanks for your help!- Spinnor
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- Coal Earth Oil
- Replies: 24
- Forum: Earth Sciences
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Can Oil Be Heated in a Microwave Oven? Discover the Science Behind It
just wondering if i put oil in a microwave oven will the oil get heated and why? i know polar substances will be heated but I am not sure if the same thing will happen to non-polar substance like oil -
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How Does the Millikan Oil Drop Experiment Illustrate the Balance of Forces?
Homework Statement An oil drop with a mass of 7.20*10^-16kg moves upward at a constant speed of 2.50 m/s between two horizontal, parallel plates. If the electric field strength between these plates is 2.20*10^4 V/m, what is the magnitude of the charge on the oil drop? Homework Equations...- General_Sax
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- Drop Experiment Millikan Millikan oil drop Oil Physics
- Replies: 1
- Forum: Introductory Physics Homework Help
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Medical Oil for Dry Skin: Benefits & Uses of Baby Oil
Does putting oil on the skin helps to reduce the dry skin? Or, it just looks better because under oil, the dry skin is temporarily invisible? What is baby oil for?- jobyts
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- Oil Skin
- Replies: 16
- Forum: Biology and Medical
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Find Thickness of Oil Film on Water, \lambda = 550 nm
Homework Statement A thin film of oil (n = 1.50) floats on water (n = 1.33). If the film appears yellow-green (\lambda = 550 nm) when viewed at normal incidence, how thick is it? Given: n_{f} = 1.50 n_{water} = 1.33 \lambda_{0} = 550 nm \theta_{i} = 0 Required: Thickness (d)...- maybetoday
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- Film Lambda Oil Thickness Water
- Replies: 3
- Forum: Introductory Physics Homework Help
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Why Does Total Internal Reflection Not Occur at the Oil-Water Interface?
Homework Statement Consider a layer of oil assume n = 1.6 about 5 mm thick floating over a body of water n = 1.33. If a light ray is obliquely incident from air onto the oil surface find the range of incidence angles if any that results in total internal reflection at the oil water interface...- roeb
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- Air Interface Oil Water
- Replies: 1
- Forum: Introductory Physics Homework Help
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A question about cooking oil bottle caps
Hi PF, I really didn't know where to ask the following question so redirect the thread if necessary. I'd like to know why I can't really "close" cooking oil bottle caps. I can screw the oil bottle caps but when it's almost totally screwed, suddenly it's like it unscrew and I have to screw it...- fluidistic
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- Cooking Oil
- Replies: 3
- Forum: General Discussion
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What do i need to know to build oil expeler?
Hi all! I am new to this forum and i know nothing about mechanical engineering.I have degrees in electrical engineering and computer science.I wish to build a food oil expeller and want to know the mechanical engineering basics i need to study before i venture on the project.Any pointers will...- bineyame
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- Build Oil
- Replies: 5
- Forum: Mechanical Engineering
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Is Hexane Soluble in Crude Oil?
Homework Statement Does hexane dissolve in Crude oil? My attempt I know it dissolves in fats and to some oils. I am not sure whether it means crude oil too.- soopo
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- Oil Solubility
- Replies: 13
- Forum: Biology and Chemistry Homework Help
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Index of refraction for vegetable oil
A glass rod seems to disappear when it is placed in vegetable oil. Based on this observation, predict the index of refraction for vegetable oil.- WizKid77
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- Index Index of refraction Oil Refraction
- Replies: 1
- Forum: Introductory Physics Homework Help
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How Do You Calculate the Height of Oil in a U-Tube?
A U-tube of circular diameter 5.60 mm initally contain just water. If 4.00 milliliters(cm^3) of oil is added to the left hand side of the tube the level of the oil is 6.8 mm higher than the level of the water in the right hand side of the tube. Determine the height of the oil. i'd give some...- superjen
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- Height Oil
- Replies: 1
- Forum: Introductory Physics Homework Help
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How Do Surface Waves Behave in an Ocean of Oil?
I'm interested in the physical behavior of surface waves in an oil-based ocean. Suppose, if you will, an ocean created of crude oil. How would its waves behave in relation to our own oceans' waves? I think oil waves would be slower and lower in height, but how much slower and lower I...- lewdtenant
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- Ocean Oil Surface Waves
- Replies: 13
- Forum: General Discussion
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News Can Obama Achieve Oil Independence?
The man keeps going! I know nothing about this topic other than what is available in mainstream media. Was wondering if those of you in the know could comment on the possibility and viability of these goals and policies? Obama aims for oil independence- phyzmatix
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- Independence Oil
- Replies: 94
- Forum: General Discussion
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What is the mass of a floating block of wood in oil and water?
i have a physics problem about buoyancy and could really use some help! a cubical block of wood 10cm on a side, floats at the interface between oil and water with the lower surface 2cm below the interface. the density of oil is 0.6 g/cm^3 and the density of water is 1.00g/cm^3. what is the mass...- laurenh19
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- Buoyancy Oil Water
- Replies: 2
- Forum: Introductory Physics Homework Help
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Predicting the price of crude oil
I am a (mathematical) physics student doing a project on predicting the price of crude oil, and was hoping someone here could help point me in the direction of some good resources (books, websites, journals etc). I am especially interested in resources which model things mathematically. The...- madness
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- Oil
- Replies: 27
- Forum: General Discussion
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Distinguish between polyunsaturated vegetable oil and petroleum oil
1. Which of the following chemical reaction could be used to Distinguish between polyunsaturated vegetable oil and petroleum oil containing a mixture of saturated and unsaturated hydrocarbon? Explain your answer. i.addition of bromine in CCl4 ii. hydrogenation iii.saponification iv.ozonolysis...- xiaofupo
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- Oil Petroleum
- Replies: 2
- Forum: Biology and Chemistry Homework Help
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Optimizing Thin Film Interference for Maximum Reflection
Homework Statement A transparent oil with an index of refraction of 1.25 spills on the surface of the water (n=1.33), producing a maximum of reflection with incident orange light (\lambda = 602nm in air.) Determine the lowest possible thickness (in nm) of the oil slick.Homework Equations...- Sevenheartz
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- Film Interference Oil Thin film Thin film interference
- Replies: 8
- Forum: Introductory Physics Homework Help
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Flavouring Olive Oil for a Better Taste
Olive oil is supposed to be good for you but, it doe's not taste very nice, so i tried warming some up with flavourings (herbs and spices) so far the best tasting one is mint, let it cool first, what do you think?- wolram
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- Oil
- Replies: 35
- Forum: General Discussion
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Pumps: Head, Discharge & Lubrication Oil Recommendations
[FONT="Times New Roman"][SIZE="4"]Hi all, I want to know the details of the pumps such as [SIZE="4"][FONT="Times New Roman"]Which of the pump has the highest head? Which one has the Highest Discharge? The one highly recommended for lubrication oils? [FONT="Times New...- karven
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- Discharge Head Oil Pumps
- Replies: 4
- Forum: Mechanical Engineering
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Oil Compressibility - Bulk Modulus of Oil (API 30-40) 0-3000 psi & 10-20°C
Could anybody provide information on the bulk modulus of oil (say API Gravity 30-40) in the range of pressure 0-3000 psi and in the range of temperature 10-20 degrees C? Many thanks Filippo Librino- Filippo54US
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- Compressibility Oil
- Replies: 6
- Forum: General Engineering
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News Why Did Obama Drop the Oil Tax Proposal?
http://www.telegraph.co.uk/news/worldnews/northamerica/usa/barackobama/3551022/Barack-Obama-breaks-first-campaign-promise-by-dropping-oil-tax.html Wondering what the relation is with the economic crisis.- Andre
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- Oil Taxes
- Replies: 37
- Forum: General Discussion
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Volume of ice immersed in water to that in kerosene oil
Homework Statement A cube of ice floats partly in water and partly in kerosene oil. Find the ratio of the volume of ice immersed in water to that in kerosene oil. Specific gravity of kerosene oil is 0.8 and that of ice is 0.9 Homework Equations Upthrust = V(imm)*d*g The Attempt at a...- iitjee10
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- Ice Oil Volume Water
- Replies: 10
- Forum: Introductory Physics Homework Help
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Oil Heater, Humididy, Heating Cold Air
Hi I am living in a 2 bedroom house with base bord heaters but i have also purchesed 3 oil space heaters, my landlord since has givin me a bogus eviction notice because of to much humididiy in the air, his fault really for nothin ensuring propor ventalation when repairing the house but my...- justmehere
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- Air Cold Cold air Heater Heating Oil
- Replies: 5
- Forum: Thermodynamics
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News Oil Prices in 2009: Will They Rise or Fall?
Will oil prices rise in 2009? Or will the economy keep the prices down for a while?- Wellesley
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- Fall Oil Rise
- Replies: 2
- Forum: General Discussion
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Can Hydrophobic Surfaces Repel Both Water and Oil?
Hello, I have a quick question regarding an http://www.sciencenews.org/view/generic/id/38466/title/Blueprint_to_repel_oil_and_water" that I just read on ScienceNews regarding hydrophobic surfaces. In the second to last paragraph it's quoted that "although hydrophobic surfaces readily shed...- psyklon
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- Oil Surfaces
- Replies: 2
- Forum: Materials and Chemical Engineering
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As CO2-GWD, how does nuclear compares to natural gas and oil?
As a CO2-global warming denier (GWD), how nuclear power generation compare to natural gas and oil carbon fuels, in start up costs, long term costs, pollution, operating costs? Is there any reason natural gas and oil fossil fuels can not meet projected energy needs, besides the allegation of...- ensabah6
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- Gas Natural Nuclear Oil
- Replies: 22
- Forum: Nuclear Engineering
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Heating oil and outside temperature
Let's say it is 20 degrees Fahrenheit outside. If I have my thermostat set at 60 F, then each time my house dips below that temperature, my furnace should kick on and reheat it to 60 F. And the cycle continues... If I have my thermostat set at 68 F, then the scenario remains the same...- platina
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- Heating Oil Outside Temperature
- Replies: 3
- Forum: Thermodynamics
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Medical Cod Liver Oil Capsules: Therapeutic Benefits & Scientific Basis
I have been constantly advised to take cod liver oil capsules to relieve rheumatic and arthritic joint pains. Is this a proven theraputic fact, and/or does it have any scientific basis? I know people who swear by them, but having used them daily for the past six months, I feel just the same...- Hanfonius
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- Oil
- Replies: 13
- Forum: Biology and Medical
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Removing Burnt Carbon from Used Oil
Hi to all i would like to ask is there a way of getting burnt carbon out of the used oil i have tried all i can think of but still can't get it all out is their a bleach or some thing i can use please don't tell me about the old trick with a rope it takes to long Thanks -
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Efficiency of Indian kino oil as a biodiesel
I am planning to test the efficiency of Indian kino oil as a biodiesel... How do I do it? I only have access to my school chemistry lab... -
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What advantage of oil in hydraulic brake over air?
I know that in a hydraulic system, oil is used rather than water because water can easily vaporised under extreme use. What the is the advantage/s of using oil over air in a hydraulic system?- justx007
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- Air Brake Hydraulic Oil
- Replies: 14
- Forum: Other Physics Topics
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News Sex, Drugs & Oil: Government Ties to Industry
Government quite literally in bed with the oil industry. . . http://www.forbes.com/business/2008/09/10/sex-drugs-oil-biz-beltway-cx_jz_0909rik.html- AstroRoyale
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- Drugs Oil
- Replies: 3
- Forum: General Discussion
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How to dilute Light Paraffin /White/ Mineral Oil
Does any genius here knows any suitable and cheap chemical to dilute Light Paraffin/White Mineral Oil to become lower density & thinner without affecting PH level? Probably a ratio of 10%(Light Paraffin/White/Mineral Oil) + 90%( X chemical)? Thanks! -
How solubility of oil in water is effected by temperature?
I think oil will be less soluble in water in high temperature. Oil is not soluble in water because it is not favoured by entropy change, so we cannot make oil soluble just by changing temperature. Rather increasing temperature would remove energy barrier and decrease solublity. [Energy...- Ahmed Abdullah
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- Oil Solubility Temperature Water
- Replies: 10
- Forum: Chemistry
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News Will lifting oil drilling bans in the U.S. lower the price of oil?
My opinion is that it won't change much. I feel that the Bush administration and the oil companies are just pulling a fast one on us because Bush wants to lift these bans before he leaves office. The public are eating it all up. There are two main arguments that they use to advocate...- sketchtrack
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- Lifting Oil
- Replies: 63
- Forum: General Discussion
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Jobs After Peak Oil: What to Consider | Physics Forums
Maybe you've heard about Hubbert peak aka Peak Oil . Otherwise, this threads should be useful for you: https://www.physicsforums.com/showthread.php?t=172175&highlight=hubbert https://www.physicsforums.com/showthread.php?t=184372&highlight=hubbert The global economy it's entirely oil...- Artus
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- Jobs Oil Peak
- Replies: 13
- Forum: STEM Academic Advising
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What is the true amount of oil reserves in the US and worldwide?
We have had a lot of discusions on oil on this forum. One key question is how much oil there really is in the US and the World. People have written everything from 20 billion barrels in the US to 100 billion barrels or more. Could people weigh in on what they believe is the true number and why?- wildman
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- Oil
- Replies: 1
- Forum: Earth Sciences
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Oil from genetically-modified organisms
A Silicon Valley startup "LS9" is genetically modifying E.coli and yeast to excrete a petroleum substitute instead of the fatty acids they would normally produce during fermentation. The great thing about this is that they can be fed practically any type of organic waste, and the process need...- turbo
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- Oil
- Replies: 55
- Forum: General Discussion
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Block floating in water - Oil is added
Homework Statement A block of wood floats on water. A layer of oil is now poured on top of the water to a depth that more than covers the block.If 75% of the wood is submerged in water before the oil is added, find the fraction submerged when oil with a density of 715 kg/m3 covers the block...- emenos
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- Block Floating Oil Water
- Replies: 1
- Forum: Introductory Physics Homework Help
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What is the depth x of the oil?
[FONT="Georgia"][SIZE="3"]Homework Statement The bore hole of depth 2000m contains both oil and water as shown. The pressure at the bottom is 17.5MPa. The density of the oil is 830kgm^-3 and the density of the water is 1000kgm^-3. http://img384.imageshack.us/img384/6944/10062008fj0.png What...- looi76
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- Depth Oil
- Replies: 1
- Forum: Introductory Physics Homework Help