Break Definition and 293 Threads

  1. G

    Ankle Breaks: Recovery, Prevention, and Types of Fractures

    So I managed to break my fibula/tibia at the end near my ankle. I managed to do it, while, of all things, dancing. I was just doing my normal thing, doing a turn, I think I hopped just a little bit, heard a SNAP, then I was on the ground immediately. I heard someone freak out (I felt no pain...
  2. T

    Some of my Winter Break physics problems

    [SOLVED] Some of my Winter Break physics problems Hey guys, I'm new to this site, and as the way things are going with my physics class, this won't be my last request for help lol. Well anyway, our teacher assigned us a few problems to do over break, and since I have a week left I decided...
  3. Cyrus

    Getting Ready for Winter Break: Cooking, Eating & Drinking Ideas

    Ah, Finally. Winter break has rolled around. Tomorrow is my first day of winter break a free man. Over the break I want to cook, eat, cook, eat, cook, eat and cook some more! But the problem is I don't really know anything about cooking, and I need some ideas on some foods to make and eat. I...
  4. J

    Reducing Risk of Injury: The Impact of Air Bags on Stuntmen's Falls

    Question A stuntman lands safely in an air bag to break his fall from the top of a 6-storey building. Explain how the air bag reduces the risk of the injury. Attempts The air bag provides a longer duration for the force of the ground to act on the stuntman, hence the impulse is lesser, and...
  5. P

    Break frequencies for directly coupled transistors

    Homework Statement The problem asks to determine the break frequency at the base of Q2 (which is fine I have no problem with that), but the whole assignment never asks for the break frequency at the COLLECTOR of Q1, then later asks to produce a bode plot of the transfer function. See the image...
  6. C

    Will Either Rope Break Supporting a 1000kg Steel Beam?

    Homework Statement A 1000kb steel beam is supported by two ropes. Each rope as a maximum sustained tension of 6000N. Does either rope break? If so, which one(s)? http://img101.imageshack.us/img101/3930/diagramgm2.jpg Homework Equations Tension = M cos/sin theta (in this case it is...
  7. J

    Predicting when a liquid flow will break into droplets

    The following is also posted in the Chemistry forum. This is a cross-post. If this is not allowed, it's fine with me if this post is deleted by an admin. I would like to know how to predict when a flow of liquid---dichloromethane, actually---freely flowing downward through a small hole...
  8. J

    Predicting when a liquid flow will break into droplets

    I would like to know how to predict when a flow of liquid---dichloromethane, actually---freely flowing downward through a small hole (varying from around .05 to .001 cm) will exit as droplets instead of flowing in a steady stream. I have been bouncing around the Internet for a good while now and...
  9. E

    Could chirality in LQG break the electroweak symmetry without the higgs?

    One difference between GR and LQG is that LQG is chiral, whereas GR is not. In order to break the electroweak symmetry, a higgs field needs to be introduced by hand. Einstein's understanding of inertia implies a strong EP as gravitational mass and inertia are identical, while a higgs...
  10. L

    Break Beam Sensor Optics for Bio Research

    Optics and bio research hi yall! im doing a neuroscience research on the circadian behavior of different species of fishes, and i need a device to measure activity levels of fish under different light conditions. one of the mostly used method is to have a light source (IR or something else)...
  11. O

    Does motion break existing symmetries?

    Does motion break existing symmetries? Observations suggest that the observable universe is spatially flat and, on the largest “cosmic”scale, highly symmetric. On this scale it is modeled as always isotropic and homogeneous. In this situation Birkhoff’s theorem tells us that “exterior” matter...
  12. V

    What caused the supercontinent to break up

    When the Earth first formed there was a single supercontinent. Why did the ocean ridges appear and break up this continent into smaller units?
  13. D

    Calculating Putt Break Over Distance w/ Friction

    How would you go about calculating how much a putt would break over a given distance without neglecting friction? EDIT: I've realized this would be more appropriate in the coursework section, unforunately it's too late now.
  14. 8

    EASY PROBLEM - Force to break the string.

    A .208-kg toy whistle can be whirled in a horizontal circle of 1.00 m radius at a maximum of 3.00 rev/s b4 the string breaks. What is the force needed to break the string. I don't know how to start this problem but this is what i got. first i found frequency which is 1/3 and then i got...
  15. wolram

    Do Fish Break Wind? Investigating Digestion in Aquariums

    Do fish---- Break wind, when looking at them in aquariums i have never seen bubbles coming from that end, so may be their digestive system works differently.
  16. B

    Ideas for Surviving Summer Break as an Engineering Student

    I just completed 1st year engineering program. i have no summer job, i am bored, what to do for this month until school starts again.
  17. D

    What Causes the String to Break in Different Physics Demonstrations?

    At the end of this lesson. http://mfile.akamai.com/7870/rm/mitstorage.download.akamai.com/7870/8/8.01/f99/videolectures/wl99lec6-300k.rm Why does the lower string break, and then the upper and finally the lower one again? Has it anything to do with the speed he is pulling with? Look at the...
  18. Danger

    Solving the Mystery of Spaghetti: Why Can't You Break It in Two?

    Hi, all; An interesting question was posed this morning by the science correspondent on Canada AM. Apparently, it's also in New Scientist magazine. He claims that it's unsolved, and I figured there's no better place than PF to go when searching for engineering solutions. I'm putting it in GE...
  19. Chi Meson

    Preparing for Spring Break: Grading Tests Before Vacation

    It's Thursday. Tomorrow is the first day of an 11-day vacation. Right now I have my planning period, which is supposed to be used for grading tests, etc. I have about 20 tests to grade. I'm looking at them right now. They need to be done before my next class, which starts in about 80...
  20. Z

    Decoherence - How not to break entanglement?

    Assume one photon of a momentum entangled pair of photons is absorbed by an isolated atom. Is there now an entanglement between the other photon and this atom? If so, in what way is the atom entangled with the photon? If the atom after a while emits a photon, under what conditions would the...
  21. B

    Can't break being addicted to videogames.

    Hello. once again, I'm making some large post where I complain about me, my situation, and my life in general. If you don't give a crap what I say, that's nice, but if you really don't give a crap, you won't say anything. Anyway, back to my badly formatted complaint about myself. Age 15...
  22. B

    Break my addiction to Leaving Reality

    break my addiction to "Leaving Reality" I managed to break my addiction to "Leaving Reality"; Reading too much, playing Video Games too much, and watching too many movies(not TV, TV sucked anyway). That addiction most likely prevented me from being able to skip grades early on in my life...
  23. S

    Can You Break This Simple Code?

    Can you break it ! i bet u can't ! LDTGDOTURELOESIDWWCBSUVCAFEEOHISKEIFWCLUSTMNISEEIOLIMAOSIECDVDMUGWNOLOEEBPCITTNIUWDELHCHAINLHIMELAT This is a simple code that i made up for a friend who is confused about ...?? if you want to know u will have to break it ! As i said it is quite...
  24. T

    Wouldn't god be able to manipulate and break the laws of physics?

    since god created all of existence includeing the very laws of physics that govern our universe then, couldn't god be able to manipulate and break the laws of physics that he created? also, wouldn't that mean that the laws of physics can not prove nor disprove god's existence? sorry if this is...
  25. J

    Light that has enough energy to cause this bond to break?

    I really need help with this problem. I need to know how to work it and the answer. I am trying to review all these problems and they do not have answers. 2. It requires 242.7 kJ/mol to fragment Cl2 molecules into Cl atoms. What is the longest wavelength (in nanometers) of light that has...
  26. E

    News I think I may need a bathroom break. Is this possible?

    "I think I may need a bathroom break. Is this possible?" The content of a note written by one Gorgeous George W. Bush to Ms. Rice at the UN today caught on camera. So the Leader of the Free World (TM) has to be told when to piss? That's classic! The irony is that I laughed so hard I wet myself...
  27. B

    Time for a Change: Taking a Break from Your Desk Chair

    You've been in one position too long. How good it would feel to stretch and shift around in your chair.
  28. O

    Need to break my lease, any lawyers?

    i am moving back to PA from NC. I just moved into a new apartment been here for maybe 3 or 4 weeks. i signed a 12 month lease for 5 grand, or 417 per month. I am moving, there is no debate here, and it absolutely must happen...but paying 5g's for an empty room for a year is unacceptable. I...
  29. C

    Reviewing Physics 111 During Summer Break

    I've just finished grade 11 and it's now summer break for me, so I have plenty of time on my hands. I want to review some of the stuff I learned this year in my Physics 111 class and hopefully get ahead on some of the stuff I'll be studying next year. From what I hear, Halliday and Resnick's...
  30. M

    Nuclear Waste: Can It Be Used to Break Down Plastics?

    From what I know the Nuclear waste that we have now. It gets burried and cemented into dead mines. Well as there is also a problem that the synthetic plastics do not decompose in landfills for a long time. Is it possible that we could use the radiation from the waste to break up the bonds...
  31. L

    Will Heating a Liquid-Filled Bottle Cause It to Explode?

    Suppose here's a covered bottle full of liquid. I heat the bottle so the liquid changes to gas state. Will the bottle be broken since gas creates a bigger pressure?
  32. E

    Spring Break Fun: Tell Us What You're Doing!

    WOO-HOO! Spring Break! Since I'm not going anywhere for Spring Break I'd like to live vicariously through those that are. Please tell where y'all are going for SB and what y'all are doing. Bonus for you if you are doing something BESIDES getting swervy. If I can get ANY time off from work...
  33. H

    What could be causing my rocket to never land on the moon?

    Heya, could someone take a look at my code for me? I'm trying to do the second part of "Part 1" from the problem sheet: http://www.hoofbeat.tv/Page4%20Scan.jpg [apologies the image is small on the site - I don't have enough webspace to upload it any larger] However, my code never seems...
  34. U

    End result when you break a proton down?

    what is the end result when you break a proton down? I know that the charge is called a positron but what is the other half of the proton called?
  35. T

    Can Complex Systems Lead to Emergent Phenomena?

    I have been saying it since august that I would get my theory of eveyrthing website going when break started. Well break has arrived and I finally got www.utoe.org properly linked... sort of it will work if you go there but I still need some url masking. Anyway, I need some suggestions on what I...
  36. T

    Is Cancun the Top Choice for Spring Break This Year?

    What is everyone doing for spring break? I think that I am going to cancun where I may just meet up with Evo...jr... hahahaha. News to Evo sr. Anyway I thought this would be the appriopiate place to mention it haha. Also friends are planning a road trip to little old kansas... I wonder who lives...
  37. M

    Break down simple derivative problem for me

    Our teacher simply tells us to memorize a chart of derivatives. This is all fine and dandy, until it came to our last test and I am lost. I know d sqrt{X}=1/2X and d 1/X^2=-2/X^3 However, I don't know why that is, and it doesn't give me way to handle derivatives for cube roots, etc. For...
  38. T

    MicroSurvey Demo - Crack/Serial Needed - Physics Forums

    I'm supposed to be looking for the program "MicroSurvey" for the guy who's computer I'm using. I can find the "demo" I'm looking for a crack or serial to register it if anyone happens to know a good serial site. he keeps coming in and looking over my shoulder and I said "physics forums" is the...
  39. T

    Can Lightning Shatter a Diamond in the Desert?

    Can lightning break diamond..? :redface:
  40. Raavin

    Help with reverse siphon break?

    Help with reverse siphon break? Hey there, Not sure if this is possible but... I was wondering if there was a way to set something up so that one liquid would siphon into a lower container and stop when the liquid reached the level of the tube opening without using any sort of valve...
  41. T

    A challenge: break the force barrier of nature

    A new claim has appeared in physics. It is claimed that there is a largest possible force, namely c^4/4G or 3 x 10^43 Newton. (The claim is made in the paper http://xxx.lanl.gov/abs/physics/0309118 ) All my friends and acquantances have first said "wrong!" but then failed to produce a...
  42. Ivan Seeking

    NASA NASA promises to break culture of silence: CNN

    "JOHNSON SPACE CENTER, Texas (AP) -- The space shuttle engineers who desperately wanted zoom-in satellite pictures of the damaged Columbia in orbit never spoke up at key meetings and never told the manager in charge of the flight. They were too uncomfortable. Too afraid. "...
  43. STAii

    Light can break its own speed limit, researchers say

    I am really shocked ! http://www.cnn.com/2000/TECH/space/07/20/speed.of.light.ap/index.html is back to 2000 (i guess), but it is really shocking ! What do u people think ?
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