Break Definition and 293 Threads

CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. It is a special ASCII text file that contains user-accessible setup or configuration directives evaluated by the operating system's DOS BIOS (typically residing in IBMBIO.COM or IO.SYS) during boot. CONFIG.SYS was introduced with DOS 2.0.

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  1. J

    Trigonometric integrals; choosing which one to break up?

    trigonometric integrals; choosing which one to "break up?" When you have two different trigonometric functions multiplied together within the integral, for example integral of (cos^4*sin^6) how do you tell which one to "break them up" to substitute an identity in? Thank you!
  2. M

    Schools Math Grad School after long break

    Next Spring I'll be graduating at the University of Arkansas with a Double major in Math(B.S.) and Physics(B.A.). As of right now the plan is to teach high school math and/or physics in Texas. However, that isn't necessarily my ultimate goal. I would like to go to grad school and get at least a...
  3. T

    Deuterium Bulb Safety - What Happens if it Breaks?

    Hi Folks, We use a UV bulb in my workplace which contains deuterium gas. The bulb is safely contained within a housing unit inside a machine so there are no direct hazards with UV radiation etc. I was however wondering, what would happen should such a bulb break? I have checked some MSDS...
  4. mudweez0009

    Safety Injection during Main Steam Line Break

    Why is Safety Injection used during Main Steam Line Break? All that I can find is that it brings water back to the cold leg to compensate for the loss during the break.
  5. 462chevelle

    What do you guys usually do for spring break?

    What do you guys usually do for spring break? I can't get myself to quit studying, but i don't know if that will be a bad thing in the long run. Do most people relax and catch up to their sleep, to get refreshed for the second half of the semester?
  6. Darth Frodo

    How to break up with a professor.

    Hey guys, In a bit of a sticky situation here. So, there is a prof. who wants me to work with him over the summer and then into the future, the issue is, his area of research is NOT what I see myself doing or even interesting. My question is, how would you tell him that you would rather...
  7. B

    Control Systems Theory: Determing break frequency mathematically.

    Hey there. I have an open loop transfer function TF = K/(t*s^2 + s) where K is known. Given a value for the break frequency (say, w_b = 10 rad/s), I have to determine the value of the time constant, t. I understand how do this with a bode plot, but not entirely sure how to proceed...
  8. T

    When do Maxwell's Equations break down?

    I'm trying to get a sense of how widely applicable Maxwell's equations really are. I've read that electrodynamics becomes non-linear in the Schwinger limit where electric field strengths get high enough, but are there other situations where Maxwell's equations are insufficiently accurate? What...
  9. D

    Maple Maple: Swapping Enter & Shift+Enter for Line Break?

    I want Enter to produce a line break, and shift+Enter to evaluate. Swapping the default commands. Is it this possible? Programming in maple is a pain if I have to press shift+enter every time.
  10. J

    Question: will highly charged metals break apart?

    Because of the "sea of electrons" holding a metal lattice together is it possible to charge that metal so much positively (by removing enough electrons) that it will break apart due to the unbalanced repulsion between positive nuclei? normally the interaction between the "sea of electrons" and...
  11. M

    Can covalent bonds in water break by pushing them on a solid?

    How do water molecules behave in the presence of a static electric field? If I apply an electric field on water molecules, would they apply pressure to a solid surface (let's say a noble metal), and if so, what would happen? Could the oxygen wedge in between the atomic gaps on the surface of...
  12. A

    How to prevent line break in blogger?

    I don't know where to put this post, I am sorry if I put it into the wrong place. I was writing a proof on wave in conductor in blogger. But I discovered that blogger automatically break lines after a latex math. Here's my post...
  13. J

    When does infinitesimal notation break down?

    Everything I've encountered in physics so far allows infinitesimal numbers to be manipulated as real numbers. But there has been much criticism towards Leibniz's notation, and I assume it is for a reason. When in mathematics will the infinitesimal notation not work? Including treating...
  14. S

    Momentum, force, energy and impact to break something.

    Ok I've been trying to figure out the difference between dropping something very heavy onto glass breaking the glass and throwing a penny at glass fast enough to cause it to shatter. specifically what I am trying to figure out is how does energy, and change in momentum relate to force...
  15. A

    How Riemann hypothesis would break internet security?

    I saw this in one of the episodes of Numb3rs - (a T.V. show that describes how math can be used to solve crimes) It basically said that if Riemann hypothesis is true then it could break all the internet security. I want to know how. I couldn't understand Riemann hypothesis from Wikipedia and...
  16. E

    Possible to get internship over winter break?

    I'm currently an electrical and computer engineering undergrad and I get 4 weeks off for winter break. Is it possible to get an internship (paid or unpaid), preferably in industry, for such a short period of time?
  17. S

    Force required to break tempered glass with apple?

    Hello! I'm new to the forums, have SOME physics under my belt as a civil engineering major. I have a hypothetical question to solve that has been driving me bonkers. At first, it sounded simple enough. Now, I must assume MANY things and don't know which set of equations to use to solve my...
  18. B

    Idea 2 for how to break the second law of thermodynamics

    Hello! I have another idea for how to break the second law of thermodynamics, and I don't see where this one cracks either. I would be glad if someone could explain this to me. Kelvin-Planck statement of the second law: "No process is possible whose sole result is the absorption of heat...
  19. B

    Idea for how to break the second law of thermodynamics

    Hi! I have an idea for how to break the second law of thermodynamics, and I don't see where it cracks. I would really appreciate if someone could explain this to me. Kelvin-Planck statement of the second law: "No process is possible whose sole result is the absorption of heat from a reservoir...
  20. A

    Word Mac 2011 Section Break Difficulties

    Hello, I am having troubles ridding my research paper of this thorn in my side: It is a rather random line of dots. I have tried everything in my power to remove it, but to no avail. I am, for some odd reason, unable to highlight it. Furthermore, temporarily deleting the surrounding...
  21. K

    Quick question about make before break switches and capacitors

    Homework Statement A capacitor is initially connected to a voltage source in series for a long time. At time t0 the make before break switch switches to another series circuit which includes the capacitor. This means that the capacitor will have an initial voltage v(0-) = voltage source...
  22. D

    Does gravity break down in the big bang?

    Dear all, I just read something in a book by Lawrence Krauss which I don't understand. I hope you can answer my question: Kraus makes the argument that if you take quantum mechanics and gravity, something is more energetically favorable than nothing. Hence if you take nothing, at some point...
  23. T

    Does Dark Energy break the Conservation of Energy?

    As the expansion of space accelerates, space is created and this seems to break the conservation of energy law. I've googled this but have not found a really good explanation of this. Imagine for a moment we're so far into the future that there are vast vast voids between what remains of...
  24. E

    Should i break up with my new GF ?

    she doesn't know the difference between astronomy and astrology.
  25. A

    Force need to break a magnetic lock

    Force need to break a magnetic lock NOT SOLVED So rest assured I'm not planning a prison break. I work in a secure treatment center for adolescents and the other night we had an escape. Many of the staff are amazed at the ease they busted the lock. I looked at it and there is a lot of play on...
  26. C

    Does matter break the light speed barrier after the event horizon?

    This is a question someone asked me today and it's bugging me allot. If the acceleration caused by gravity is greater than the speed of light at a black hole event horizon then does this mean that the matter is falling at faster than light speed?
  27. thenewmans

    What interpretations break causality instead of locality?

    By Bell’s theorem, an interpretation of QM must break either locality or causality. Linked below is the only interpretation I know of that chooses to maintain locality. (I don't know many.) Do you know of any others? CAUSALLY SYMMETRIC BOHM MODEL...
  28. H

    Force to break one, two and three white pine boards

    Homework Statement Assume you have 6 white pine boards with all the same breaking force and there is no difference in the boards at all If you find the force to break one pine board, two pine boards with no gaps and three pine boards on top of each other with no gap. Does the amount of...
  29. R

    Time Dilation in Spinning Cylinder Room: Can We Break the Speed of Light?

    In the spinning cylinder room example mentioned in relativity, where the nearest distance between 2 point is actually curved line.. and light take a straight pass right, which is farer than the curved line due to time dilation in the middle of the room due to a smaller acceleration than side of...
  30. H

    Is it easier to break 1 2inch boards or 2 1inch boards

    Hi I have been doing taewkon do and seen people break boards and I want to know is it easier to break say 1 2 inch thick pine board or 2 1inch pine boards assuming that the boards are uniform and have no knots in them and that the 2 1 inch boards are on top of each other with no gap...
  31. R

    Break even on cell phone plans

    Homework Statement A customer is choosing between two cellular phone plans. One plan has a monthly fee of $50 for an allowance of 500 minutes per month. If the customer uses more than 500 minutes, the charge is $0.35 per additional minute used. The other plan has a monthly fee of...
  32. M

    Can spaces in the installation category names break scripts?

    Hi, I installed XAMPP into my F drive folder called: "Program files". I got a warning: "WARNING: Your install directory contains spaces. This may break programs/scripts" The program is running so no need for help. But was wondering how is it that spaces in installation category names can...
  33. H

    Kinetic enengy needed to break a board

    Homework Statement I need to get E_{b} = .5(m*n*V^{2}_{i})/(m+n) [eq 6] where E_{b} is the energy required to break the board, m is the mass of the object hitting the boards, n is the mass of the board and V_{i} is the velocity of the object before hitting the board. Homework Equations...
  34. B

    Stopping Abruptly to Save Break Pads

    Hi, I am curious, would stopping a car more quickly, or more abruptly, allow its break pads to last even a little longer? I understand that stopping short may have adverse effects on other parts of the breaking system or on the car or person riding it. I do not intend to stop short in an...
  35. romsofia

    Courses What should I review over break for this Astrophysics course?

    Description: This course covers stellar astrophysics, solar physics, star formation, stellar evolution, processes in the interstellar medium, galactic dynamics and evolution, formation of galaxies and cosmology. Book: INTRO TO MODERN ASTROPHYSICS- Carrol What should I review over break...
  36. Q

    Advice for a productive winter break

    Hi there! This is my first post on PF, so I apologize if this isn't the correct subforum for this topic, but I'm looking for your advice! I'm a first-year undergraduate with two weeks of winter break left to burn, and I've gotten my fill of the obligatory sleeping and eating and visiting with...
  37. T

    Hydraulic piston break system problem

    Homework Statement The figure below shows the essential parts of a hydraulic brake system. The area of the piston in the master cylinder is 1.8 cm2, and that of the piston in the brake cylinder is 6.4 cm2. The coefficient of friction between shoe and wheel drum is 0.50. If the wheel has a...
  38. W

    How much force does it take for a egg to break?

    Homework Statement the egg of mass 59g breaks from a height of approximately 0.35m and breaks How much force does it take for the egg to break We know the egg broke at exactly 0.35m and any height less then that it was not as effectively broken? Homework Equations eg = mgh fg=mg...
  39. D

    Calculating Pressure for a Hydraulic Car Lift

    A car service station uses a hydraulic car lift, the diameter of its pistons are 0.02 m and 0.32 m calculate the pressure required to raise a car of mass 1800 KG I don't know how to get the area ?
  40. C

    Magnetic force lost when you break a magnet?

    if you have a magnet that pulls 40lbs of force if you broke that into 2 how much force will each magnet pull. i have some neodymium magnets from hardrives and i want to break them up but i want to know if that's gunna make them lose a lot of force. anyone know the formula for calculating...
  41. N

    Can someone give me a basic calculus problem then break it down and solve it?

    I will be taking calculus soon and want to know what yo expect from the course. please give as many details as possible. thank you
  42. A

    What happens to cohesive forces when things break?

    Cohesive forces holds stuff together, these forces being strongest in solids. However, why don't things (say, a stone) stick back together if I push them close?
  43. I

    What is the maximum weight a string can hold before breaking?

    I don't know much about physics but I know some math. So say I want to set up an experiment (hopefully easily reproducible) where I have a string (I can find out what I like about the string) tied to a spot above the ground. It is hanging straight down. Say I tie a zip lock back to it and I...
  44. N

    How to break down Dichlorodifluoromethane

    Hi people, I was wondering what method could I use to break down such a bond. Thanks for answering
  45. I

    Do enzymes tranfer energy to break substrates?

    I'm new to the subject and i have an intuition that during the time the substrate and the enzyme are together energy is transferred to the substrate (from the enzyme) to break the bonds and to release the substrates energy*. But alas i have been met with opposition to this understanding...
  46. T

    Why does the Split-finger baseball pitch break?

    Supposedly the Split-finger is suppose to 'tumble' or drop as you can find in most references to the pitch. But it's almost impossible to find the answer to "why?" (perhaps because baseball pitchers aren't physicists?) But I have a theory. It involves knowledge on the way the curveball (12-6...
  47. B

    Speed at which molecules break down using electricity

    When breaking down a molecule using electricity, what determines how much of the substance is broken down per second. Is it the voltage, current, or something else I'm not thinking of?
  48. J

    What are the forces that can break atoms apart from each other?

    Hi Guy's (and by guy's I mean guys and dolls:) I am trying to figure out what things (forces, anti-forces?) can break, or undue the electromagnetic forces that bring atoms together to make molecules. Is there only one type of force (magnetic?) - if so what can undo that force as well. These...
  49. M

    Learning Advanced Math During a Break

    The courses I've taken are algebra, trig, calculus 1 and 2 with analy. geometry and elementary linear algebra. Now that I have a three month break I plan on reviewing calc 1 and 2, and linear algebra. I would also like to learn a new topic but I don't know what subjects would be in my range of...
  50. M

    How to know when to break up equilibrium problems into components, vs torque

    Homework Statement I am a bit confused on when to break up static equilibrium problems into their linear components, vs just jumping straight into angular torque without breaking the linear forces into their respective components. For example: A uniform plank of mass 30kg and length 2.0m...
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