Hello Definition and 276 Threads

  1. C

    Quick Hello Then Question About Energy

    Hey, Im A Highschool Student; Nerd In Development; lol anyways iv'e come across this question in my Text Book and I am not sure how to figgure it out; Can Someone PLEASE for the love of god tell me how the hell to do it Ok Heres The Status They Give You: Mass - 2kG Angle - 60 Force -...
  2. I

    Annie's Struggle in Astronomy Class: A Freshman's Plea for Help

    Hi! My name is Annie and I am a freshman at UW-Whitewater. I am currently in the introduction to astronomy class. In high school, I took physics and loved it. I even got the 2nd highest grade in the class! This is even more telling when you know that it was a predominantly senior class and...
  3. S

    Can You Help Me Pronounce Krstse in English?

    How will you pronounce "Krstse" in English ? Thanks
  4. D

    What is the Best Way to Handle Stress in Physics Studies?

    hi, I'm new here and i am here because of the degree of difficulty and stress that physics exudes on my being. so i guess i'll be comming to you guys with homework problems and theory question. i'm in AP physics so does that could at introductory physics or advanced physics?
  5. W

    Hello Chemistry & Medical people

    Hi! My name is Chris... I've been reading through many of the boards around here and there seems to be an abundance of people that have been through the system and know their fields, why not take advantage of such a experienced community and get advice? I suppose it has been 5 or 6 years...
  6. M

    Hello everyone, having troulbes applying Kirchoff's Rule~DC circuits

    Hello everyone, this is my first problem dealing with Kirchoffs Rule and I thought I did it right...here is the circuit... http://www.webassign.net/hrw/hrw7_27-40.gif the info is the following: In Figure 27-40, the resistances are R1 = 1 , R2 = 2.2 , and the ideal batteries have emfs E1 = 2.0...
  7. H

    What is the Kinetic Energy of an Electron Accelerated Through 400V?

    an electron is accelerated from rest thru a potential difference of 400v. what is the final kinetic energy of the electrom how much work is requires to bring four point charges eacg wit q= -8pc from infinity to a distance of 3nm from each other your help is greatly appreciated
  8. K

    Fluid Flow Simulation: Materials and Instructions for Research

    I need badly some materials or instructions on how to simulate fluid flow or similar/related things to finish my research in the next 3 months...Do you know where I can find some to read, or places where I can download source code ?? Anything about it is really fine, how to simulate is also...
  9. A

    How Bone is Formed in Humans - Douglas' Questions

    I am a colege student, we are going to have a test after holidays, i am worried because I still don't know a lot of things. Could you tell me how bone is created in human ? I know there are tow stages bone is formed: membrane, and endochondrea. I am still stuck at how to say these two stages...
  10. Clausius2

    Unveiling the Mysteries of Vacuum: Insights from a Spanish Physicist

    I think you're going to hate me for talking again about the vacuum. Yesterday I saw a TV program about CERN. A physicist (spanish by the way) talked about the vacuum is not so vacuum as we could think. Let's suppose I have a reservoir in which it has been made a high vacuum. A manometer...
  11. S

    Calculating Stress for a Metal with Young's Modulus of 1.9*10^11

    Hello every one I am just new here and new to pyhsics...so just want to say Hello! I've got a question if anyone could help Id be so grateful :smile: a metal has youngs module value of 1.9*10^11 calculale the stress needed to produce a strain of 1.44* 10^-3... could someone please explain...
  12. A

    Finding Angles with Dot Product: A Beginner's Guide

    I'm very new to this. I know that to find the angle between two vectors we use the dot product, but what about finding the angle between a vector and each of it's axes? for example: A = 3i+2j+k, How can I employ the dot product when there is no other vector? Thanks and keep posting! Amil
  13. marlon

    What is the PF Spacecowboy Community?

    Wellcome to PF spacecowboy. regards marlon
  14. S

    Who's Excited for College Majoring in Mathematics and Physics?

    Hello all! I am so glad that a forum like this exists. I absolutely love Physics, Philosophy, Mathematics, and Astronomy and have longed to inquire upon some folk who might know more than I do. I just want to introduce myself for a second. My real name is Kevin and I live in Detroit, MI. I...
  15. M

    Calculating Final Temperature of Isolated System with Ice and Water

    i have an easy problem that i can't solve if you throuth 100g of ice at a tempeture of -15C in a glass with 200g of water at a tempeture of 25C. what it the final tempeture of the system? the system is isolated, no heap can get in neither get out. i try to solve this problem using...
  16. I

    Hello, good-bye, and thank you.

    I am trying to learn ways of saying "hello", "good-bye" and "thank you". in as many languages as possible. So far this is what I've got: 1.) English: Hello Good-bye Thank you 2.) Amharic: Selam Ciao Amesegenalow (meaning...
  17. M

    What Are Some Pros and Cons of George Bush's Presidency for Republicans?

    Hello Republicans... Things I like about George Bush: Tax cuts. Late term abortion bill Holding Iraq accountable Removing the Taliban Support for a two state plan inthe middle east Bringing intelligence agencies under one roof Focus on unjust Affirmative Action Programs Push for Free...
  18. chroot

    Hello SPS, from physicsforums.com

    Hello sci.physics.strings! I'm Warren (aka "chroot"), co-administrator of www.physicsforums.com, a site devoted to enabling global scientific communication for both professionals and laypeople. As part of our service to the professional physics community, we are providing a web-based...
  19. H

    Hello, new memeber, that needs help

    Hello, my name is Hessam (self-evidently), i am 15 years old and have an ambition to study physics throughout my life. I have allready read a book on general physics, and one on einsteins theory of relativity, and because of my will to pursue this field, i wish to major in it when i go to...
  20. Ivan Seeking

    Technology Comedy: Stick your finger in your ear and say hello

    Truth is stranger than fiction! When I pictured the streets of New York, with tens of thousands of people walking around with their finger stuck in their ear... You just can't make up stuff this good! In five years it will seem natural to stick your finger in your ear to answer the...
  21. F

    Hello, my name is matt and i have a problem.

    howdy. I'm not too good at physics, and i have a lab due tomorrow. it isn't too complex of a problem, so help would be appreciated. if you are willing to help, say "asyemptote" and i will type the problem. thanks a bundle
  22. D

    First post. Hello, my name is Davin. Questions.

    I am not a rocket scientist, I have never taken calculus, I do not have a degree of any sort, I have dropped out of high school, I can bearly spell words correctly, and I'm just a young punk kid. But I do have many questions that have been bothering me incessantly since I was 15 and took physics...
  23. T

    What Can I Expect Moving to Kentlands for a Summer Job in Derwood?

    Good afternoon, Hello from gaithersburg maryland. I am new to this fourm. I work in the health physics field.. If your ever in gaithersburg drop me a email will do lunch..
  24. L

    What is the best approach for buying books as a science major?

    Hello all! I'm a neuroscience pre-med major. I'm glad to be here, especially now, because I just completed my two semester series of non-calculus physics. Being a science major, I have a rule for myself. I don't buy any books on a given scientific subject until I have finished the...
  25. check

    Adjusting Wavelength of Monochromatic Light | Exploring Different Techniques

    First off, I'm new to the board so hello! I hope to be a regular. Now that that's out of the way: Is there any way to change the wavelength of monochromatic light (other than the doppler effect)? Thanks!
  26. E

    Who Is EMANON and What Brings Them Here?

    Spotted this board and decided to register...I may or may not post often, it depends... How are you? Are you friendly? What are your qualifications? Cheers... oh I like your smilies...[zz)]
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