is there any one on yahoo messenger that can help me with science coursework?
337085
Resistance in a wire is caused by ions in the wire getting in the way of electrons. This causes their drift velocity( the average velocity of an electron) to decrease so current (charge per second)decreases because fewer electrons go past a certain point per second. Things can affect resistance, such as \n-heat as if the wire is hot the ions vibrate more and so get in th way of electrons more, \n-thickness of the wire as when it is thicker there are more spaces for electrons to get through, \n-material of the wire as some is more conductive than others,\nlength of the wire as the longer the wire, the more times the free electrons will collide with other free electrons, and the ions making up the metal. Therefore, more energy is going to be lost in these collisions (as heat). \n try this site http://www.bbc.co.uk/schools/gcsebitesize/physics/electricity_and_magnetism/resistance_and_resistorsrev1.shtml
359834
I've just set up a forum to help with any kind of homework.\n\nhttp://s9.invisionfree.com/Homework_Help_Circle/index.php?act=idx\n\nIt's free to join but i'm a bit lacking in members at the moment.
1103450
Try http://www.TutorVista.com
544249
Im sure i can help you if i SEE the question email it to me monkeybars1234@yahoo.com Ill see what i can do
666564
cool...one of my yahoo IDs is :\n <itsnanceg> \n I can chat about many of those things as I studied many religious books and my Dad was a science teacher & college professor..so he taught us all he could about all aspects of science.\n I t would be refreshing to talk to someone about intersting things
200076
Well the 'science department' and EVERYTHING request is a bit much for a forum, perhaps you could re-ask your question and narrow the field a bit AND put it in the proper category?  Just a suggestion :)
1102357
http://www.physicsforums.com/\n\nNothing is more useful than discussing physics with other people.
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PHYSICS WEBSITES\n\nhttp://www.bcspanthers.org/physicswebsites.htm\n\nhttp://dmoz.org/Science/Physics/Education/\n\nhttp://www.refdesk.com/science.html\n\nhttp://library.thinkquest.org/10796/\n\nhttp://www.staloysius.org/Myrtle/physics/ICT%20Resources%20by%20Topic.htm\n\nhttp://www.physicsclassroom.com/\n\nhttp://www.nsf.gov/news/classroom/physics.jsp\n\nhttp://wdcrobcolp01.ed.gov/cfapps/free/displaysubject.cfm?sid=8&subid=75\n\nhttp://sps.k12.ar.us/massengale/biology%20class%20notes2.htm\n\nGood luck.\n\nKevin, Liverpool, England.
1117036
You should be able to email him at:\n\ngreene@math.columbia.edu\ngreene@physics.columbia.edu\n\nHowever, he's a busy guy so don't be surprised if you get an auto-reply or no reply.\n\nI like this site to ask physicists questions:\n\nhttp://imagine.gsfc.nasa.gov/docs/ask_astro/ask_an_astronomer.html
183731
This doesn't really belong in Earth Sciences.  Biology or Botany are more specific categories for questions about living matter.  However, I'm in a good mood because it's Friday.  Check the link.
1129077
hey. dont have messenger. any other way i can help u?
622022
http://scienceworld.wolfram.com/
137141
Alright, let's talk.  You can now reach me through Yahoo Messenger (mrjeffy321).\nDo you have any particular subjects in mind?
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Use these for FREE.\n\nEncyclopedias.\n\nhttp://www.answers.com/\n\nhttp://aip.completeplanet.com/\n\nhttp://www.brainyencyclopedia.com/\n\nhttp://edtech.kennesaw.edu/web/3-5.htm\n\nhttp://www.encyclopedia.com/\n\nhttp://www.nationalgeographic.com/\n\nhttp://www.infoplease.com/encyclopedia/\n\nScience Fair Project Encyclopaedia\n\nFor information on any area of science that interests you,\nenter a keyword (eg. scientific method, molecule, cloud, carbohydrate etc.).\n\nOr else, you can start by choosing any of the categories below.\n\nhttp://www.all-science-fair-projects.com\n\nhttp://uk.ask.com/\n\nGood luck.\n\nKevin, Liverpool, UK.
564814
Me toooooooooooo I'm very intersted in Science Shall we chat together about it??!!!!
415811
Try Google groups. Particularly sci.math. \n\nIf you can afford it you can try Kasamba.
807823
I believe you posted in the wrong category.\nYou may want the science category, perhaps chemistry....