what is the difference between 2700 Kelvin and 6400 Kelvin in light bulbs?
Q. I am trying to decide whether to buy a 50W 2700 Kelvin bulb, or a 35W 6400 Kelvin daylight bulb. I want to know which will be brighter.
Asked by anushka108 - Tue Oct 7 05:35:01 2008 - - 2 Answers - 0 Comments
A. I would guess that they would both APPEAR to be about the same brightness, even though the 50 watt should be almost twice as bright! The reason is that 2700 K is a 'warm' yellowish light, whereas 6400 K is a very blue/white light, which the eye will percieve as 'brighter'. It all depends on what you are using the light for?? You need the actual lumen figures from the makers of the lamps to be exact.
Answered by jayktee96 - Tue Oct 7 07:55:40 2008
Q. I am trying to decide whether to buy a 50W 2700 Kelvin bulb, or a 35W 6400 Kelvin daylight bulb. I want to know which will be brighter.
Asked by anushka108 - Tue Oct 7 05:35:01 2008 - - 2 Answers - 0 Comments
A. I would guess that they would both APPEAR to be about the same brightness, even though the 50 watt should be almost twice as bright! The reason is that 2700 K is a 'warm' yellowish light, whereas 6400 K is a very blue/white light, which the eye will percieve as 'brighter'. It all depends on what you are using the light for?? You need the actual lumen figures from the makers of the lamps to be exact.
Answered by jayktee96 - Tue Oct 7 07:55:40 2008
What is the average kinetic energy of a gas at zero degrees kelvin?
Q. What is the average kinetic energy of a gas at zero degrees kelvin?
Asked by divaness_06 - Tue Jul 22 20:00:31 2008 - - 3 Answers - 0 Comments
A. at 0 degrees Kelvin or absolute zero, all motion stops so the average kinetic energy is 0.
Answered by ninjamayn - Tue Jul 22 21:14:02 2008
Q. What is the average kinetic energy of a gas at zero degrees kelvin?
Asked by divaness_06 - Tue Jul 22 20:00:31 2008 - - 3 Answers - 0 Comments
A. at 0 degrees Kelvin or absolute zero, all motion stops so the average kinetic energy is 0.
Answered by ninjamayn - Tue Jul 22 21:14:02 2008
How to get from east kilbride to kelvin hall sports arena by train?
Q. im finding it hard to know what trains i need to get on. please help. i want to go from east kilbride train station to kelvin hall subway, or even partick station would be fine.
Asked by sprinter575 - Mon Dec 29 09:09:21 2008 - - 1 Answers - 0 Comments
A. 16 to Garden hall East Kilbride;; 42 and 42a to Barlanark;; 18 and 18a to East ... You now pass the Kelvinhall International Sports Arena, on your left, ... hope this helps.
Answered by Crusader - Mon Dec 29 09:14:15 2008
Q. im finding it hard to know what trains i need to get on. please help. i want to go from east kilbride train station to kelvin hall subway, or even partick station would be fine.
Asked by sprinter575 - Mon Dec 29 09:09:21 2008 - - 1 Answers - 0 Comments
A. 16 to Garden hall East Kilbride;; 42 and 42a to Barlanark;; 18 and 18a to East ... You now pass the Kelvinhall International Sports Arena, on your left, ... hope this helps.
Answered by Crusader - Mon Dec 29 09:14:15 2008
How to calaculate the wavelength of a neutron at 500 kelvin?
Q. I am guessing you need to use de Broglie's, but how do you go from 500 kelvin to energy or velocity??
Asked by me09 - Sat Oct 10 09:02:14 2009 - - 2 Answers - 0 Comments
A. you are correct that you need to use deBroglie's equation for wavelength, but that equation involves the speed of the neutron, so: lambda = h /m v where lambda is the wavelength of the neutron, h is planck's cst, m is the mass of the neutron and v is its velocity you find the velocity from kinetic theory: 1/2 mv^2 = 3/2 kT where k is the Boltzmann's cst and T is the temp so combine these two and you can calculate the wavelength
Answered by kuiperbelt2003 - Sat Oct 10 10:02:26 2009
Q. I am guessing you need to use de Broglie's, but how do you go from 500 kelvin to energy or velocity??
Asked by me09 - Sat Oct 10 09:02:14 2009 - - 2 Answers - 0 Comments
A. you are correct that you need to use deBroglie's equation for wavelength, but that equation involves the speed of the neutron, so: lambda = h /m v where lambda is the wavelength of the neutron, h is planck's cst, m is the mass of the neutron and v is its velocity you find the velocity from kinetic theory: 1/2 mv^2 = 3/2 kT where k is the Boltzmann's cst and T is the temp so combine these two and you can calculate the wavelength
Answered by kuiperbelt2003 - Sat Oct 10 10:02:26 2009
Can I step up a very low voltage to a very high one using superconductors at 3 degrees Kelvin?
Q. Could I use a series of transformers to step up an extremely low voltage - like a 9V battery - to a very high one (like that of a power station) by using superconductor matrial for the wires and cooling it to about 4 degrees Kelvin in order to overcome any resistance? I imagine it would be expensive, but would such a device have any benefit for power generation? Could it be done or would the low temperature slow the flow of electrons?
Asked by Brian Kronberger - Thu Dec 20 01:54:02 2007 - - 7 Answers - 0 Comments
A. 9 volt battery could not dissipate enough currebt for your applications try 10 -12 volts batteries in series for 10 msecs might work lol
Answered by JavaScript_Junkie - Thu Dec 20 02:19:15 2007
Q. Could I use a series of transformers to step up an extremely low voltage - like a 9V battery - to a very high one (like that of a power station) by using superconductor matrial for the wires and cooling it to about 4 degrees Kelvin in order to overcome any resistance? I imagine it would be expensive, but would such a device have any benefit for power generation? Could it be done or would the low temperature slow the flow of electrons?
Asked by Brian Kronberger - Thu Dec 20 01:54:02 2007 - - 7 Answers - 0 Comments
A. 9 volt battery could not dissipate enough currebt for your applications try 10 -12 volts batteries in series for 10 msecs might work lol
Answered by JavaScript_Junkie - Thu Dec 20 02:19:15 2007
How could I express these conditions using the Kelvin scale?
Q. In a chemical plant, xenon hexafluoride is stored at STP. How can I express these conditions using the Kelvin scale?
Asked by momoxnyu - Thu Apr 16 12:14:13 2009 - - 2 Answers - 0 Comments
A. first.. STP probably means 273.15K = 0 C and 1 atm of pressure second.. to convert between kelvin and C... K = C + 273.15 *** fyi.. in case you're interested.. there are about 20 different versions of STP and they are all slightly different. NIST has one, IUPAC has another, etc the old IUPAC is 273.15 K and 1 atm the current one is 273.15 K and 100 kPa usually, the "old" IUPAC is taught in classrooms today.
Answered by m w - Thu Apr 16 12:25:18 2009
Q. In a chemical plant, xenon hexafluoride is stored at STP. How can I express these conditions using the Kelvin scale?
Asked by momoxnyu - Thu Apr 16 12:14:13 2009 - - 2 Answers - 0 Comments
A. first.. STP probably means 273.15K = 0 C and 1 atm of pressure second.. to convert between kelvin and C... K = C + 273.15 *** fyi.. in case you're interested.. there are about 20 different versions of STP and they are all slightly different. NIST has one, IUPAC has another, etc the old IUPAC is 273.15 K and 1 atm the current one is 273.15 K and 100 kPa usually, the "old" IUPAC is taught in classrooms today.
Answered by m w - Thu Apr 16 12:25:18 2009
Why do we have to convert celsius into kelvin?
Q. Farahein,Celsius And Kelvin they are confusing me people,Plz help,why do we always use kelvin?
Asked by Mr AnDeRson - Wed May 20 05:16:25 2009 - - 7 Answers - 0 Comments
A. who "always uses kelvin"? open up a weather channel (non US channel) and you'd get the degrees in celsius. kelvin has a zero at "absolute zero" (nothing can be colder then that), but it's rarely used for common day temp'. each scale was designed by a different "guy" who decided to use that scale, for the work he did.
Answered by Eyal Lev - Wed May 20 05:28:54 2009
Q. Farahein,Celsius And Kelvin they are confusing me people,Plz help,why do we always use kelvin?
Asked by Mr AnDeRson - Wed May 20 05:16:25 2009 - - 7 Answers - 0 Comments
A. who "always uses kelvin"? open up a weather channel (non US channel) and you'd get the degrees in celsius. kelvin has a zero at "absolute zero" (nothing can be colder then that), but it's rarely used for common day temp'. each scale was designed by a different "guy" who decided to use that scale, for the work he did.
Answered by Eyal Lev - Wed May 20 05:28:54 2009
How do you explain the equivalence of the Kelvin-Plank and the Clausius statements of the 2nd law of thermo...
Q. Kelvin-Plank: It is impossible to construct an engine which, operating in a cycle, will produce no other effect than the extraction of heat from a reservoir and the performance of an equivalent amount of work. Clausius: It is impossible to construct a refrigerator which, operating in a cycle, will produce no other effect than the transfer of heat from a cooler body to a hotter one. I know they are equivalent (obviously), but I can't remember the proof.
Asked by Om - Mon May 12 10:06:48 2008 - - 1 Answers - 0 Comments
A. If you had a Kelvin-Plank heat engine, you could use it to run your ordinary refrigerator, and in the net, you'd have a Clausius refrigerator. Similarly, if you had a Clausius refrigerator, you could use it to offset the heat transfer of an ordinary heat engine, and you'd have a Kelvin-Plank heat engine.
Answered by dmo - Mon May 12 11:12:58 2008
Q. Kelvin-Plank: It is impossible to construct an engine which, operating in a cycle, will produce no other effect than the extraction of heat from a reservoir and the performance of an equivalent amount of work. Clausius: It is impossible to construct a refrigerator which, operating in a cycle, will produce no other effect than the transfer of heat from a cooler body to a hotter one. I know they are equivalent (obviously), but I can't remember the proof.
Asked by Om - Mon May 12 10:06:48 2008 - - 1 Answers - 0 Comments
A. If you had a Kelvin-Plank heat engine, you could use it to run your ordinary refrigerator, and in the net, you'd have a Clausius refrigerator. Similarly, if you had a Clausius refrigerator, you could use it to offset the heat transfer of an ordinary heat engine, and you'd have a Kelvin-Plank heat engine.
Answered by dmo - Mon May 12 11:12:58 2008
Can an object have a temperature of 0 Kelvin?
Q. Kelvin is measure of how much energy is in an object. For an object to be 0 Kelvin, you would have to place another object that is less than 0 Kelvin next to it to take away the energy. Less than 0 Kelvin means that an object has a negative amount of energy which really isn't possible. I learned this in my Earth Science class when my teacher said that objects of 0 Kelvin will be out far in space. Is that true? Please answer this question as detailed as possible.
Asked by boricua82991 - Tue May 23 18:45:23 2006 - - 11 Answers - 0 Comments
A. Zero Kelvin (aka Absolute Zero) is a theoretical temperature which has been approached VERY closely in laboratory conditions, but should not actually be literally possible to achieve. By definition ANY temperature, including something like 0.0001 Kelvin is technically infinitely more than true absolute zero. Absolute zero is a limit, not an achievable value.
Answered by bobjoe_jim - Tue May 23 18:49:30 2006
Q. Kelvin is measure of how much energy is in an object. For an object to be 0 Kelvin, you would have to place another object that is less than 0 Kelvin next to it to take away the energy. Less than 0 Kelvin means that an object has a negative amount of energy which really isn't possible. I learned this in my Earth Science class when my teacher said that objects of 0 Kelvin will be out far in space. Is that true? Please answer this question as detailed as possible.
Asked by boricua82991 - Tue May 23 18:45:23 2006 - - 11 Answers - 0 Comments
A. Zero Kelvin (aka Absolute Zero) is a theoretical temperature which has been approached VERY closely in laboratory conditions, but should not actually be literally possible to achieve. By definition ANY temperature, including something like 0.0001 Kelvin is technically infinitely more than true absolute zero. Absolute zero is a limit, not an achievable value.
Answered by bobjoe_jim - Tue May 23 18:49:30 2006
The volume of a gas varies directly with its kelvin temperature?
Q. The volume of a gas varies directly with its kelvin temperature. A gas at 283 K has 9 volume of 823 L. What temp would reduce the volume by 632?
Asked by Chelsea - Tue Jun 23 08:16:35 2009 - - 1 Answers - 0 Comments
Q. The volume of a gas varies directly with its kelvin temperature. A gas at 283 K has 9 volume of 823 L. What temp would reduce the volume by 632?
Asked by Chelsea - Tue Jun 23 08:16:35 2009 - - 1 Answers - 0 Comments
What is the lowest temperature that can exist ever in ALL of physics and theories... Lower than 0 Kelvin?
Q. Can there be a lower temperature than 0 Kelvin? What is it?
Asked by magicsebi - Sat Oct 25 16:38:42 2008 - - 3 Answers - 0 Comments
A. 0 Kelvin is by definition "absolute zero". If you should ever find a temperature less than 0 Kelvin, then the scale has to be reset to have that temperature BE 0 kelvin.
Answered by special-chemical-x - Sat Oct 25 16:41:34 2008
Q. Can there be a lower temperature than 0 Kelvin? What is it?
Asked by magicsebi - Sat Oct 25 16:38:42 2008 - - 3 Answers - 0 Comments
A. 0 Kelvin is by definition "absolute zero". If you should ever find a temperature less than 0 Kelvin, then the scale has to be reset to have that temperature BE 0 kelvin.
Answered by special-chemical-x - Sat Oct 25 16:41:34 2008
Methanol, or wood alcohol, solidifies at -94c. What is the freezing point on the Kelvin and the Fahrenheit sca
Q. Methanol, or wood alcohol, solidifies at -94c. What is the freezing point on the Kelvin and the Fahrenheit scales?
Asked by reginald c - Tue Oct 16 22:09:08 2007 - - 6 Answers - 0 Comments
A. Freezing point of Methanol = -94 C; or = - 94 +273 =179 K or -94 *9/5 +32 = -137.2 deg. F
Answered by sb - Wed Oct 17 03:29:44 2007
Q. Methanol, or wood alcohol, solidifies at -94c. What is the freezing point on the Kelvin and the Fahrenheit scales?
Asked by reginald c - Tue Oct 16 22:09:08 2007 - - 6 Answers - 0 Comments
A. Freezing point of Methanol = -94 C; or = - 94 +273 =179 K or -94 *9/5 +32 = -137.2 deg. F
Answered by sb - Wed Oct 17 03:29:44 2007
Why doesn't any substance have zero volume at zero kelvin?
Q. I need help answering the question. Why doesn't any substance have zero volume at zero kelvin?
Asked by Nelfheim - Fri Feb 20 23:07:30 2009 - - 5 Answers - 0 Comments
A. I doubt this is the answer you are looking for, but physically a substance is made of matter, and matter by definition has to take up space no matter how minute that that space maybe. Therefore nothing can occupy a space consisting of measurements of 0 units. Also despite what the second answer said, it would not be a gas, liquid or solid as it nears 0 kelvin, it would be entering one of the other states of matters in this case Bose-Einstein Condensate (the 7 states of matter in increasing energy level: Bose-Einstein Condensate, Solid, Liquid, Gas, Plasma, Super heated Plasma, Ray, and finally Wave).
Answered by cj k - Fri Feb 20 23:18:48 2009
Q. I need help answering the question. Why doesn't any substance have zero volume at zero kelvin?
Asked by Nelfheim - Fri Feb 20 23:07:30 2009 - - 5 Answers - 0 Comments
A. I doubt this is the answer you are looking for, but physically a substance is made of matter, and matter by definition has to take up space no matter how minute that that space maybe. Therefore nothing can occupy a space consisting of measurements of 0 units. Also despite what the second answer said, it would not be a gas, liquid or solid as it nears 0 kelvin, it would be entering one of the other states of matters in this case Bose-Einstein Condensate (the 7 states of matter in increasing energy level: Bose-Einstein Condensate, Solid, Liquid, Gas, Plasma, Super heated Plasma, Ray, and finally Wave).
Answered by cj k - Fri Feb 20 23:18:48 2009
how would i convert from fareinheit to kelvin?
Q. kelvin to fareinheit? celsius to kelvin? kelvin to celsius? celsius to fareinheit?
Asked by ALESANA - Wed Feb 13 21:11:38 2008 - - 3 Answers - 0 Comments
A. F means Fareinheit, C means Celsius, and K means Kelvin. Here are all the conversions between them: F to C: C = (5/9) * (F - 32) C to F: F = (9/5) * C + 32 C to K: K = C + 293.15 K to C: C = K - 293.15 F to K: K = (5/9) * (F - 32) + 293.15 K to F: F = (9/5) * (K - 293.15) + 32 Notably, you can easily just type these values in google (like 5F in K) and get it converted for you.
Answered by aestatisa - Wed Feb 13 21:17:23 2008
Q. kelvin to fareinheit? celsius to kelvin? kelvin to celsius? celsius to fareinheit?
Asked by ALESANA - Wed Feb 13 21:11:38 2008 - - 3 Answers - 0 Comments
A. F means Fareinheit, C means Celsius, and K means Kelvin. Here are all the conversions between them: F to C: C = (5/9) * (F - 32) C to F: F = (9/5) * C + 32 C to K: K = C + 293.15 K to C: C = K - 293.15 F to K: K = (5/9) * (F - 32) + 293.15 K to F: F = (9/5) * (K - 293.15) + 32 Notably, you can easily just type these values in google (like 5F in K) and get it converted for you.
Answered by aestatisa - Wed Feb 13 21:17:23 2008
what is the difference between a celsius scale and a kelvin scale?
Q. If the temperature graph of a certain experiment formed a straight line when recorded on the Celsius scale, discuss what a graph of the same experiment on the Kelvin scale would look like
Asked by unknown - Fri Oct 12 15:58:29 2007 - - 6 Answers - 1 Comments
A. The Kelvin scale starts at absolute zero, where particles stop moving. The Celsius scale has degrees the same size as Kelvin, but sets 0 as the freezing pint of water and 100 as the boiling point of water. 0 C is 273 degrees K, The Kelvin scale starts 273 lower than Celsius. absolute zero on the Celsius scale is -273 Add 273 to K to get C
Answered by science teacher - Fri Oct 12 16:12:28 2007
Q. If the temperature graph of a certain experiment formed a straight line when recorded on the Celsius scale, discuss what a graph of the same experiment on the Kelvin scale would look like
Asked by unknown - Fri Oct 12 15:58:29 2007 - - 6 Answers - 1 Comments
A. The Kelvin scale starts at absolute zero, where particles stop moving. The Celsius scale has degrees the same size as Kelvin, but sets 0 as the freezing pint of water and 100 as the boiling point of water. 0 C is 273 degrees K, The Kelvin scale starts 273 lower than Celsius. absolute zero on the Celsius scale is -273 Add 273 to K to get C
Answered by science teacher - Fri Oct 12 16:12:28 2007
How much electricity is produced in general by a Kelvin Water Dropper?
Q. I personally did this experiment and found that the results were varied and the multimeter that i used to measure it produced numbers in the thousandths.
Asked by ghost_calibur - Mon Feb 18 22:34:10 2008 - - 1 Answers - 0 Comments
A. What do you mean how much "electricity"? How much charge? What voltage difference? How much energy? I'm not surprised that the results varied. You are dealing with an electrostatic system and you are measuring it with a multi-meter that probably wasn't designed with electrostatics (generally, very low currents) in mind. Also, the Kelvin water dropper is a positive feed back loop that magnifies any initial differences. (In fact, you can't even predict which side ends up positive and which negative.) This site suggests that a simple implementation can generate "several thousand" volts: The details of construction (materials used, height the water falls, etc.) clearly affect the results.
Answered by simplicitus - Sat Feb 23 23:04:58 2008
Q. I personally did this experiment and found that the results were varied and the multimeter that i used to measure it produced numbers in the thousandths.
Asked by ghost_calibur - Mon Feb 18 22:34:10 2008 - - 1 Answers - 0 Comments
A. What do you mean how much "electricity"? How much charge? What voltage difference? How much energy? I'm not surprised that the results varied. You are dealing with an electrostatic system and you are measuring it with a multi-meter that probably wasn't designed with electrostatics (generally, very low currents) in mind. Also, the Kelvin water dropper is a positive feed back loop that magnifies any initial differences. (In fact, you can't even predict which side ends up positive and which negative.) This site suggests that a simple implementation can generate "several thousand" volts: The details of construction (materials used, height the water falls, etc.) clearly affect the results.
Answered by simplicitus - Sat Feb 23 23:04:58 2008
How you convert from Centigrades to Kelvin Scale?
Q. PROBLEM: What are the temperatures for freezing water and boiling water on the Kelvin temperature scale? Please show your work how you get it. Thanks
Asked by Gordito - Sun Oct 22 14:45:14 2006 - - 5 Answers - 0 Comments
A. Yes I can see your problem, as an old far* I have problems converting everything sterling to Euros Fahrenheit to Centigrade the list is endless. I do know the formulas, but who wants to go through all that cra*?? I certainly don't, so just do as I did buy a little conversion table that contains every thing and carry that about with you, it will save you a lot of time and effort!!
Answered by budding author - Sun Oct 22 14:59:53 2006
Q. PROBLEM: What are the temperatures for freezing water and boiling water on the Kelvin temperature scale? Please show your work how you get it. Thanks
Asked by Gordito - Sun Oct 22 14:45:14 2006 - - 5 Answers - 0 Comments
A. Yes I can see your problem, as an old far* I have problems converting everything sterling to Euros Fahrenheit to Centigrade the list is endless. I do know the formulas, but who wants to go through all that cra*?? I certainly don't, so just do as I did buy a little conversion table that contains every thing and carry that about with you, it will save you a lot of time and effort!!
Answered by budding author - Sun Oct 22 14:59:53 2006
will the Kelvin water dropper work with purified water?
Q. As part of a science experiment I am trying to build a Kelvin water dropper and I read somewhere that I need to you purified water but I tried and it didn't work so I was wondering if it was because I used purified water. if so do I use regaler watter and if anyone has any tips on building a Kelvin water dropper any and all suggestions are welcome
Asked by frantic-atheist - Mon Nov 9 17:46:17 2009 - - 1 Answers - 0 Comments
Q. As part of a science experiment I am trying to build a Kelvin water dropper and I read somewhere that I need to you purified water but I tried and it didn't work so I was wondering if it was because I used purified water. if so do I use regaler watter and if anyone has any tips on building a Kelvin water dropper any and all suggestions are welcome
Asked by frantic-atheist - Mon Nov 9 17:46:17 2009 - - 1 Answers - 0 Comments
what is the temperature needed to produce bec in degrees kelvin?
Q. who is kelvin? bec means bose einstein condensate who invented kelvin degrees?
Asked by sweetdreams - Tue Aug 28 06:39:07 2007 - - 2 Answers - 0 Comments
A. i'm not sure about the temperature but kelvin is a measure of temperature.. it's like celcius and farenheit. not a someone.
Answered by fifte3n - Tue Aug 28 06:46:34 2007
Q. who is kelvin? bec means bose einstein condensate who invented kelvin degrees?
Asked by sweetdreams - Tue Aug 28 06:39:07 2007 - - 2 Answers - 0 Comments
A. i'm not sure about the temperature but kelvin is a measure of temperature.. it's like celcius and farenheit. not a someone.
Answered by fifte3n - Tue Aug 28 06:46:34 2007
how to reduce the temperature of a system into 3 kelvin or less?
Q. what kind of experiment allowed this to happen? Could you show me the equation?
Asked by k - Fri Jun 6 02:11:55 2008 - - 5 Answers - 0 Comments
Q. what kind of experiment allowed this to happen? Could you show me the equation?
Asked by k - Fri Jun 6 02:11:55 2008 - - 5 Answers - 0 Comments
From Yahoo Answer Search: 'kelvin'
Thu Nov 12 21:28:22 2009 [ refresh local cache ]
[Hide]▼
news.google.com
Southern Daily Echo
Markus Liebherr's bright new era at Saints has got off to the best possible start by tying captain Kelvin Davis down to a new three year contract. ...
Southampton - Is Gordon Strachan set for a shock return after Mark ... GiveMeFootball.com
Swiss billionaire rescues Saints Independent
Mark Wotte expects to remain Southampton boss Mirror.co.uk
Yahoo! Eurosport - Southern Daily Echo
all 335 news articles »
mmaforreal.com
Kelvin Hunt
Sun, 01 Nov 2009 19:00:35 GM
what's crazy is. he actually convinced a doctor to remove them early. Follow Me On by . Kelvin. Hunt on Nov 1, 2009 2:34 PM EST up reply actions 0 recs ...
[Hide]▲
