Support Definition and 385 Threads

Technical support (often shortened to tech support) refers to services that entities provide to users of technology products or services. In general, technical support provides help regarding specific problems with a product or service, rather than providing training, provision or customization of the product, or other support services. Most companies offer technical support for the services or products they sell, either included in the cost or for an additional fee. Technical support may be delivered by phone, e-mail, live support software, live chat or website, or other tools where users can log an incident. Larger organizations frequently have internal technical support available to their staff for computer-related problems. The Internet can also be a good source for freely available tech support, where experienced users help users find solutions to their problems. In addition, some fee-based service companies charge for premium technical support services.

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  1. L

    How does CMB support the predictions of inflation ?

    How does CMB support the predictions of "inflation"? Could explain to the novice I am, how does the CMB observation support the predictions of "inflation"?
  2. D

    Does Higgs Boson Discovery Support 4-D Spacetime Model?

    Would the Higgs boson discovery support a 4-D spacetime model?
  3. S

    How can I use a statistical approach to match patterns in a 3x3 grid?

    Homework Statement If I have a 3*3 grid, or 3*3 matrix, which records clicked points. I.e. Pattern T = [1,1] = 1 [1,2] = 1 [1,3] = 1 [2,1] = -1 [2,2] = 1 [2,3] = -1 [3,1] = -1 [3,2] = 1 [3,3] = -1 or 1 1 1 -1 1 -1 -1 1 -1 What is the best way to statistically...
  4. F

    Do Intel, AMD, and Nvidia really support OpenCL?

    I'm working on a project using GPUs to simulate heat transfer. We are trying to create a superset which will execute on all the main architectures. How legit is OpenCL for this purpose?
  5. P

    Understanding x(θ) and h(θ) in a Triangle Support Beam Problem

    Homework Statement I have attached the problem. I am confused about how they got x(θ) and h(θ). From the diagram it looks like they made it with reference to the triangular support beam. Why? Homework Equations The Attempt at a Solution
  6. I

    Classical mechanics - mass/spring attached to moving support

    Homework Statement A mass, m, is attached to a support by a spring with spring constant, k. The mass is hanging down from the spring, so there is a gravitational force on the mass as well. Neglect any resistive or frictional force. The support is then oscillated with an amplitude of A and...
  7. D

    How many bacteria can the world support?

    The title says all I'm asking. Thank you.
  8. E

    Distributions with compact support are tempered

    Homework Statement Let F \in \mathcal E'(\mathbf R). Prove that F \in \mathcal S'(\mathbf R). 2. The attempt at a solution Since F \in \mathcal E'(\mathbf R), there exists a continuous function f \colon \mathbf R \to \mathbf R and a nonnegative integer k such that for every \varphi \in...
  9. B

    Do genetics and fossil record support the idea of genetic equidistance?

    Do genetics and fossil record support the idea of genetic equidistance with respect to molecular clock, or is it mostly theoretical and inferred?
  10. K

    [static equilibrium] pin and link support type

    Hello every one I am confused between two support type: the pin, and the link On the textbook, it says, the pin prevents the object from translating vertically and horzontally, therefore, it provides fx and fy reaction forces. but another type of support is much identical to the pin...
  11. K

    Building a wood bed platform - how much will it support?

    Because of size constraints in my room, I need a platform for my queen size bed that is the exact footprint of the bed (60" x 80"). I've decided to attempt to build it however I have no experience with this and hopefully someone can point out any flaws in my plans. I've attached an image...
  12. H

    Determining the support reactions of a frame

    Here is a link to the problem: http://img62.imageshack.us/img62/374/frameow.jpg" I am trying to find the support reactions at A and B. I separated the frame at the hinge(call it C) into two parts and took the moment equation about point A. This gave me: \SigmaMa = -60(25) - 62.5(12.5) +...
  13. M

    Statics machine equilibrium: support reaction- I have too many unknowns

    Please help Due in 2 hours. Statics machine equilibrium: reactions- too many unknowns Homework Statement The woman using the lat pulldown machine is holding the 80-lb weight stationary in the position shown. What are the reactions at the built-in support E and pin support F? (A and C are...
  14. M

    Center of mass to find support reactions at pins for a homogeneous flat plate

    Homework Statement The mass of the homogeneous flat plate is 50 kg. Determine the reactions at the supports A and B. I've attached the diagram. The Attempt at a Solution I know I will need to find the center of mass. I don't remember exactly how to do it, but I found the centroid...
  15. H

    Force exerted on bar by pin support

    Homework Statement The 8kg slender bar is released from rest in the horizontal position. When it has fallen 45 degrees, what are the x and y components of force exerted on the bar by the pin support A? Homework Equations F=ma where a= a t_hatt + v^2/p n_hat sin(45)=cos(45)=1/sqrt(2)...
  16. Dembadon

    Support Ticket Application/Plugin

    "Support Ticket" Application/Plugin I work for a (very) small, private company. I'm trying to come up with a system that will allow those of us on the support staff to "claim" an email when it arrives so that we aren't troubleshooting the same equipment and stepping on each other's toes. We...
  17. S

    Beam with simple support at center

    uniformly distributed load on a beam. it has a single simple support at the center of gravity. Beam length L and load distribution w (pounds/inch) How do I find the shear and moment diagrams?
  18. M

    Upward Force on Bench Support Leg: 990N

    Hi, I am stuck on this question... A student(850 N) sits on a 2 m long bench that weighs 625 N. The student is sitting 0.40 m from the right end of the bench. What upward force is exerted by the right support leg of the bench? please help! My attempt: (0.40m)(820N)+(1m)(625N) =...
  19. H

    Calculating reactions at supports if one support is elevated

    Hi guys! How can one calculate your reactions at both ends of a simply supported beam if one reaction is higher than the other one? Example: Support A (one end of the beam) is 100mm higher than Support B (other end) and there is a 22kN/m UDL distributed along the length of 2.5m Does your...
  20. E

    What is the Beam Support Force Question?

    Homework Statement Ok so I have a beam with the forces shown below. There is a 3 m span between the supports (A&B) and both of the supports are 1.5 m from the end of the beam. The 60 lb force is .75 meters left of support A and .75 m from the left end of the beam. P is an unknown force...
  21. L

    Find support developing a moment of inertia calculation software

    I got the algorithm to deal with every section profile. The software would calculate the area and the moment of inertia of any section or any combination of sections in different materials. Further more, I would develop it to deal with non-linear analysis finding the stress and strain on every...
  22. S

    How do I efficiently support a 600ft long pipeline?

    Hello all, There is a 600 foot long asphalt pipeline that spans over a very large field. This specific pipeline is 10 inches in diameter and has a 3in diameter pipe attached to it. In addition, this pipeline as a whole is wrapped in 2 inches of fiberglass insulation. I need to figure out an...
  23. S

    Strengthing metal engine harness bracket to support intake pipe

    hello! My first post here. I am by no means a mechanical engineer as I studied computer science in college. My question has to do with adding what is known as a cold air intake onto my vehicle. The design of the intake is such that the pipe fits at the throttle body via a silicone/rubber...
  24. D

    More Support for The Copenhagen Interp.

    What do ya'll make of this: http://www.newscientist.com/article/dn20600-quantum-magic-trick-shows-reality-is-what-you-make-it.html "It appears that you can't even conceive of a theory where specific observables would have definite values that are independent of the other things you...
  25. S

    Support a leaning Steel Sheet Pile

    Hello all, I am currently working on a project which entails the following: There is a steel fence which is welded to steel sheet pile which is slowly beginning to collapse; much similar to that of the "Leaning Tower of Pisa". The sheet pile is driven 12 feet into the ground and the fence...
  26. Y

    Support of Function: Closure of Non-Zero Set

    the support of a function is defined as the closure of the set where f is nonzero my question is why not just define the support as the set where f is nonzero? thanks
  27. F

    Support Mapping of an Arbitrary Ellipsoid

    In this context, the support mapping of any convex geometry is any point on the geometry which results in the largest dot product to some direction vector. I would appreciate some help in computationally finding the support mapping of an arbitrary ellipsoid (some arbitrary orthonormal basis...
  28. Oxymoron

    Poisson PDF with non-integer support

    Homework Statement If X is a Poisson random variable with \lambda = 2 find the probability that X>0.5. Homework Equations The Poisson PDF: P(x,\lambda) = \frac{\lambda^k}{k!}e^{-\lambda} The Attempt at a Solution Usually with these sorts of probability problems where they ask...
  29. M

    Statics project: where to place a support

    Homework Statement I have a project for my statics class. My topic is equilibrium of a rigid body, and I am building an assembly that will have four different support reactions. They will all be attached to one central post for ease of construction, but they will be analyzed as separate...
  30. Rasalhague

    Any superset of a support is also a support

    "any superset of a support is also a support" Wikipedia: Let f:R-->R: f(x) = 1 if x is in (-1,1), otherwise let f(x) = 0. Then support1 of f, "the set of points where the function is not zero" is (-1,1), and support2 of f, "the closure of that set", is [-1,1]. In either case, there is a...
  31. P

    Experimental support of string theory?

    I'd like to hear what people have to say about the following paper, which is way beyond my level knowledge, but could be exciting(?): http://arxiv.org/abs/1104.2302
  32. D

    Statics question: when do I need to find the support reactions?

    I didn't use the format because my question is more general. I want to be able to understand the logic so I can apply it where appropriate. We're finding forces (and whether they're in tension or compression) using the Method of Joints and Method of Sections. I don't understand why...
  33. D

    Find required distance of support for beam

    [b]1. There is a beam with labels point A on the left hand side of the beam and point B on the right hand side of the beam. The beam is supported by bolts on side B (that can handle up to 4000 lb). There is no support on side A, so a support has to placed at some distance from B to support the...
  34. H

    Calculating if a Stack support for a chimney will fail?

    Hello, I have a problem in calculating if a support structure for a chimney will fail. I am not asking for someone to do it for me just point me in the correct dirrection. Its the weight and force from the chimney and the external forces like wind that need taking into account. I have used a...
  35. Femme_physics

    Are rockers and rollers mobile support?

    Are "rockers" and "rollers" mobile support? I'm reading about trusses and trying to understand this sentence: . I presume they mean mobile support that only has 1 resistance direction. Am I correct?
  36. Greg Bernhardt

    Support PF: Buy your textbooks here

    Physics Forums has opened an affiliate account with Amazon.com. 5-7% of any purchase you make is sent to Physics Forums. Think about buying your school textbooks and other materials this way. Just click this link and the tracking system will register that PF sent you. Easy! Thanks...
  37. A

    What is the upward force exerted on the board by the support?

    Homework Statement A long uniform board weighs 62.6 N (12.5 lbs) rests on a support at its mid point. Two children weighing 317.0 N (63.4 lbs) and 500.0 N (100.0 lbs) stand on the board so that the board is balanced. What is the upward force exerted on the board by the support? Homework...
  38. mnb96

    What Does It Mean for a Function to Have Compact Support?

    Hello, given a function f:R->R, can anyone explain what is meant when we say that "f has compact support"? Some sources seem to suggest that it means that f is non-zero only on a closed subset of R. Other sources say that f vanishes at infinity. This definition seem to contradict the...
  39. marcus

    Lone wolf planets able to support subglacial ocean life?

    Unusual paper: http://arxiv.org/abs/1102.1108 Some planets get ejected from their systems and wander off into interstellar space. The authors investigate what would be needed for such a planet to remain able to support ocean-floor life for a protracted period on the order of a billion years.
  40. S

    Sloping roof without support at centre

    IS it possible to design a sloping roof (as shown in fig)? if yes please help in placing of beams.] thanks
  41. Femme_physics

    Simple support vectors question

    Are my reaction vectors correct? Truth be told I'm not exactly sure what am I looking it... but did I get it right?
  42. V

    Where does the energy come from to support things?

    Very basic question, I am almost embarrased to ask it... If I had to hold say a clock or a wall unit above the ground it would take energy for me to do so. I would need to eat food to get energy to support the clock in my arms, and if I ran out of energy I would drop it. If I put a nail in...
  43. M

    How to make most effective load support from piece of card?

    Card provided one half of an a4 size (105mm x294mm) The card is fashioned into a beam and will be subjected to a load test. Rules 1. The card may only be folded to form a beam; you can cut it to suit your needs. It must NOT be rolled into a tube. Not permitted to use Glue, Adhesive tape...
  44. P

    Could Pluto support an atmosphere of methane?

    Homework Statement Pluto is believed to have a radius of 1500 km, a mass of 1.5x10^22 kg, and a surface temperature of 55 K. Could Pluto support an atmosphere of methane, CH4? Homework Equations The Attempt at a Solution First some information: The problem is from a book...
  45. I

    Expansion of an aluminum support column under heart

    Homework Statement OMG, Embarrassing typo ^ *HEAT not HEART. :) Sorry! In any case, A construction worker uses a steel tape to measure the length of an aluminum support column. If the measured length is 18.6 m when the temperature is 21.2 C, what ist he length when the temperature rises to...
  46. A

    Struggling at UC Irvine: Let's Connect for Support!

    Hey ya'll. I've been struggling pretty hard with the course material at UC Irvine and am starting to question if this is the field for me or not. In an effort to find support (and help with homework), I've decided to get involved on this forum. So you'll be seeing me around. Please offer advice...
  47. H

    What Force Does a Concrete Support Exert at One End of a Bridge?

    Homework Statement A hiker, who weighs 986 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 3550 N, and rests on two concrete supports, one at each end. He stops one-fifth of the way along the bridge. What is the magnitude of the force...
  48. B

    GPU, max resolution 2560 x 1600 but no 1080p support

    So I have this graphics card and I don't understand why its specs say "no" for 1080p support. http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=5274435&CatId=3669 It says max resolution 2560x1600 and 1080p is only 1920x1080. I use a 32" LCD for my monitor and my...
  49. K

    Programs Is It Worth Pursuing a PhD in String Theory Without Financial Support?

    I applied to three universities to enter a PhD program in string theory (I know, it's not much). All three rejected me. One of them rejected me purely for financial reasons. Since I am motivated, I bargained with it to start my PhD without financial support and got accepted. It's possible I...
  50. I

    Forces exerted on support rollers?

    A 49" dia. steel tube (shell) with a 6" x 57.5" dia. steel ring (Tire) welded to the tube rotates horizontally at ~ 27 RPM. Inside of the shell are 42 - 2.5"dia x 6' long solid steel rods. It is held at one end by a 5" dia. bearing mounted shaft, at the other end the Tire sits on 2 bearing...
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