What is Application: Definition and 995 Discussions

An application program (app or application for short) is a computer program designed to carry out a specific task other than one relating to the operation of the computer itself, typically to be used by end-users. Examples of an application include a word processor and a media player. The collective noun refers to all applications collectively. The other principal classifications of software are system software, relating to the operation of the computer, and utility software ("utilities").
Applications may be bundled with the computer and its system software or published separately and may be coded as proprietary, open-source, or projects. Apps built for mobile platforms are called mobile apps.

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  1. V

    Application of Taylor Series

    The electric potential V at a distance R along the axis perpendicular to the center of a charged disc with radius a and constant charge density d is give by V = 2pi*d*(SQRT(R^2 +a^2) - R) Show that for large R V = pi*a^2*d / R This is what I have done so far... V = 2pi*d *...
  2. G

    Darkfield,brightfield application in one microscope?

    Hi every body! does anyone seen live specimen under the microscope? How does live specimen moves and interacts? What kind of scope do i need to have darkfield and brightfield application? Is there any scope that can be used in two applications?:confused: Would anyone help me choose what kind...
  3. R

    Schools Graduate School Application (about dropped courses)

    Graduate School Aplication (about dropped courses) Hi So i am a math majour, and i took a 3rd year finance course. I wrote the midterm (for the finance course) and just bearly passed - i got ~50% on the midterm and it is worth 25% of our final grade. I am 3rd year. If i drop the...
  4. N

    How to design a PID controller for this application?

    I just took over a project for a person that left the company. The project was supposed to be fully documented, but the documentation seems to have come up missing. The application involves using a microcontroller as a PID controller. I will have a desired speed, and the actual speed. I...
  5. P

    Differential equation/ spring application

    A mass weighing 8 lb stretches a spring 1.5 in. The mass is also attached to a damper with coefficient γ . Determine the value of γ for which the system is critically damped; be sure to give units for γ . I have no idea where to start. Can someone help me out?
  6. K

    Gamma function application

    Question: A particle of mass m starting from rest at x=1 moves along the x-axis toward the origin. Its potential energy is V=\frac{1}{2}mlnx. Write the Lagrange equation and integrate it to find the time required for the particle to reach the origin. Lagrange Equation in 1-D...
  7. DocZaius

    Will an object reach the other side of the Earth in 42 minutes?

    This is a theoretical question: Say you bore a hole through earth, suck out all its air, and drop an object in one side. Let's say it takes 42 minutes for the object to come out the other side and come to complete stop (only to then drop back down, of course) Now let's say you drop an object...
  8. W

    Application of formal methods

    pls, someone explain for me "formal methods to electron correlation in metals, magnetism, superconductivity ."
  9. E

    Grad School Matters More: Undergrad Choices & Application Worries

    The school taht you go to get your graduate matters more than the school you go to get your undergrad. I'm going to start my undergraduate at Texas A&M this Fall. It's not a very prestigious college, but it's close to home and I like the campus (I didn't want to go to UT and the campus was one...
  10. B

    Combinations and their application to probability

    I am doing some work on high school (Australia) level combinatorics. So I've been taught nCr, nPr, and of course factorial (!). Now I need to apply the combinatorics to probability. There a two questions which I am stuck on. I calcualted that the sample space of all combinations was...
  11. J

    Choosing the Right 3-Way Valve for Dual Water Source Control

    I was wondering anyone could help me figure out the type of valve I need. The application is I have two sources of water going into the same reservoir and I want to be able to switch between the two. I am currently looking at Direct-Acting Solenoid Valves 3 way Now I am noticing some...
  12. A

    What is the theory and application for damping

    what is the theory and application for damping:confused:
  13. R

    Application of differentiation

    2 The displacement of a particle from a fixed point is given by x = t(6 − t)(t + 1), 0 ≤ t ≤ 6. a Find the exact time when the particle is a maximum distance from the fixed point. b Find the velocity, v, when t = 3. c Find the exact time when the particle is at maximum velocity. d Find the...
  14. E

    Real life application of thermodynamics: Heat transfer/capacity/energy

    What are some real life applications of those that were developed in the past 10 years?
  15. O

    What application is there to a magnetic monopole?

    My book makes many statements about how magnetic monopoles do not exist and how scientist and researchers are trying to accomplish this. They also state that this would have wide applications. What they don't say is what and why? I see that if a magnetic monopole were to exist it's...
  16. S

    How do I correctly handle absolute value signs in double integral applications?

    Question: At airports, departure gates are often lined up in a terminal like points along a line. If you arrive at one gate and proceed to another gate for a connecting flight, what proportion of the length of the terminal will you have to walk, on average? One way to model this situation is...
  17. R

    Legendre polynomials application

    I need some help. I fitted a 7th order legendre polynomial and got the L0 to L7 coefficients for different ANOVA classes. How can I get a back transformation in order to plot each class using the estimated coefficients? Thanks to anybody. Roberto.
  18. M

    Finding a PC Application for Audio Recording & Fourier Analysis

    Can anyone recommend an application for PC that can take an audio recording, perform a Fourier transform, and return the audio recordings' frequency spectrum AND phase information? I can find plenty of programs that return the frequency spectrum, but I've had no luck finding one that...
  19. N

    Natural log real life application

    this problem is an excerpt from an explanation of a time wieghted performance method. I feel that if I can follow this part the rest of it will make sense. now i know the answer is .1259 but I'm a little fuzzy on how exactly they got that, and their 'step by step' seems to miss some steps. it...
  20. DaveC426913

    Looking for management application

    OK, https://www.physicsforums.com/showthread.php?t=107206"opensource s/w. We've had a timeline imposed that may preclude developing using an opensource solution. Now I'm looking for something that we can buy and customize to our needs. I'm not sure what kind of software this is called. It is...
  21. D

    Calculating LLD: Conflicting Equations & Application Specificity

    I can't seem to find a definitive equation for calculation of LLD (lower limit of detection). Cember has one equation, and other sources I research have completely different equations. I'm more apt to go with Cember's equation ,especially seeing as many of the govermental guides have conflicting...
  22. L

    Stirling Engine Application

    Hi. I know of the commercially available "battery-less" flashlights that use either squeezing or shaking mechanisms to generate electricity. I was wondering, however, whether I can create one that uses the difference of temperature between the hand and the room temperature. I propose to use a...
  23. A

    Proving Urysohn's Lemma and the Application to G_δ Sets

    This is a problem I am doing for review, in the section of my book on the Urysohn lemma: A G_{\delta} set in a space X is the intersection of a countable collection of open sets in X. Let X be normal. Prove that if A is a closed G_{\delta} set in X, then there exists a continuous function f...
  24. S

    Understanding Compound Interest: Solving Problems and Maximizing Profits

    I'm having some trouble with this problem what i did was (15500 + 1000t)*e^0.05t > 1000 so basically, when the money you are making is greater than how much you would make by keeping the cards i know the first t = when you sell it, but what is the second t? that should be the amount of time...
  25. N

    Application of integration: Volume

    Find the volume of the right cone of height 9 whose base is an ellipse. Major axis 12 and minor axis 6.
  26. N

    How to Solve a Physics Problem Involving Newton's Laws and Weight Measurements

    Hey, new member here, and I'm stumped on a physics problem. Two weights are tied onto each end of a piece of rope and set on a table. The rope has a scale on it. The two weights are hanging over the edge of the table - one has Fg of 100 N, the other has Fg of 50 N. What does the scale read? My...
  27. H

    Max-Min Problem: Finding Max Length Horizontal Bar Around 90 Degree Corner

    Heres an intersting problem i would like to see max-min based solutions for. Fine the maximum length of a bar to be transported horizontally around a 90 degree corner. That is, from a corridor of width a to a corridor of width b. ----------- --------l l l l thanks
  28. V

    Application Differentiation Problem

    This is kind of a stupid-sounding problem but here it is: Stadium Popcorm Problem A piece of heavy stock paper is cut into a circle with a radius of 4''. The paper is cut form one edge to the center and shaped into a cone-shaped holder. What is the maximum volume of the resulting cone...
  29. J

    Really weird application of Lenz's Law ()

    Two loops, A and B, are aligned parallel to each other. There is a current in loop A, which induces a current in loop B. How does the current in loop A change with time? By Lenz's Law, the current in loop B creates a magnetic field which opposes the change in magnetic flux which created it...
  30. S

    Dynamic application of torque with center of mass

    ok here is the problem <br>A uniform meter stick of mass M has a half-filled can of fruit juice of mass m attached to one end. The meter stick and the can balance at a point 33.0 cm from the end of the stick where the can is attached. When the balanced stick-can system is suspended from a...
  31. K

    Med School application question

    Hi, I'm a first year university student interested in medicine as a career. My marks are relatively good (it's early, but GPA~3.9), but my weak subject happens to be physics and I am considering dropping it to retake it either over the summer or next term. It will be without penalty on the...
  32. quasar987

    Application of Ampère-Maxwell equ.

    Consider the set-up illustrated in the attachement. The radius of the capacitor plates is a. The field btw the plates varies according to \vec{E}(t) = \frac{It}{\epsilon_0 \pi a^2}\hat{z} (z is to the right) So since the current enclosed is 0, Ampere-Maxwell law in its integral form...
  33. R

    Application of Bernoulli's Equation Physics question on FLUIDS unit

    A large root beer keg of height H and cross sectional area A1 is filled with root beer. The top is open to atmospheric pressure. At the bottom is a spigot opening of area A2, which is much smaller than A1. Find the total time needed to drain the keg if H=2m, A1=.8m^2 and A2=10^-4 * A1.
  34. B

    Considering Delaying Grad School Application - Am I Crazy?

    I was orginally going to finish classes this summer and apply for graduate school for next Fall, but due to dissapointing gre scores I am considering delaying my application for another year. This will let me prepare for the general gre and I will be able to take QM II and CM II before taking...
  35. B

    Getting a Waiver for Graduate School Application Fees

    I remeber reading somewhere that it is possible to get your application fee waved for graduate school. What is necessary for me to do this? Do I just have to tell the dept that I can't afford the fee. A friend of mine gets financial aid, so he said he doesn't have to pay the fee. Anyone know...
  36. z-component

    Whiteboard Apps for Online Tutoring | High School Students

    I sometimes do informal math tutoring for other high school students online and am looking for a whiteboard application similar to the one featured with MSN Messenger, but as a standalone program. The reason I wish to avoid MSN Messenger's whiteboard is because my router gives me problems when...
  37. P

    Need help to find application of the Fourier series and Fourier Transforms

    Hi, i got a task in school, in which I shall find as many application of the Fourier series And Fourier Transforms as possible. Any suggestion? Kindly Paul-Martin
  38. R

    Schools Which US Universities Offer Top Undergraduate Aerospace Engineering Programs?

    Hey everyone, It is the time of my life where I am getting ready to apply for an undergraduate program. I live in Canada, however would love to have the opportunity to study in the states. I am absolutely sure that I want to study aerospace engineering, and am in need of some help narrowing...
  39. I

    Calculating Force Away From Point of Application

    my question is at particular pont on any object some force has been applied. or it will experience a couple or moentum. how to calculate the force at some distance away from that particular point whare exactly the force has been applied.
  40. C

    Will Having a Free Period Impact My University Application?

    Last year I completed two courses in the space of one, so this year I may have the possibility of having a free period. I was just wondering if having a free period looks bad to universities even if I have all my credits.
  41. S

    Solving Problems in Calculus: Integrals and Work

    Hi everyone. I would really appreciate it if someone could check my work. I was really unsure on how to do some of these. I'm sorry it is so long. 1.) Let R denote the region between the curves y=x^-1 and y=x^-2 over the interval 1<= x <= 10. a. Set up an integral for the area of R...
  42. A

    Help: Application of Optical Fibre In Astronomy?

    I'm doing a presentation in this topic and I find it very hard to look for information on the web. Please, point me to any website or resources that have information about this topic? Thank You~! :confused:
  43. A

    Application of EM backward wave

    Hi, does anybody who knows the applications of backward type wave tell the detail of them? thank you very much!
  44. J

    Special functions and application to physics

    can anyone help me in solving my doubt that what is the application of special functions and Hermite,Legenders,Laguerre function to the various branches of physics. could u please specify any link or site adress. thank you :mad:
  45. A

    Application of non conventional energy

    Hey friends, i wud like to know abou various ways of application of non conv. energy (tidle,wind,solar etc.) sources.i am looking for some innovative idea & also easy for implementation. any suggestions are welcome.
  46. D

    Rates of Change Sliding Ladder Application

    "a 5m ladder is placed against a wall. the top of the ladder is sliding down the wall at 0.5m per second. at what rate is the bottom of the ladder moving away from the wall when the bottom of the ladder is 3m from the wall. ? " Dirac.
  47. E

    Application of Vectors: Work (calc 3)

    Hey all, I'm a bit stuck on a problem on my online homework for my calc 3 class, hopefully someone can help me out. Suppose that you push with a horizontal force on a box, to push it up a horizontal ramp, as shown in...
  48. S

    How can I run my logger echo server as an application in Windows?

    I have written this logger echo server. WHen i execute it it starts as a process in the background. How do i force it to run as application? (in cmd window for example or do i have to have gui?) im on win machine. sneez
  49. W

    Application of partial derivatives

    Hey, I have no idea where to start, for this question. I know that I will probably have to use vector and scalar product and use the trig identity tan^2(theta)=sec^2(theta)-1 - and of course partial derivatives Question: In order to determine the angle theta which a sloping plane ceiling...
  50. W

    Application of partial derivatives

    Hey, I have no idea where to start, for this question. I know that I will probably have to use vector and scalar product and use the trig identity tan^2(theta)=sec^2(theta)-1. Question: In order to determine the angle theta which a sloping plane ceiling makes with the horizontal floor...
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