Applied Definition and 1000 Threads

I was thinking of getting an applied math minor while going for the pure math degree. I only need 2 more applied math courses to get it, so it wouldn't be a BIG deal, I could just take them as options. Is it worth it?

I'm trying to work out a model for a spring mass system with a force acting at the centre of mass of the mass using Lagrangian mechanics. I can't work out the kinetic energy. I know the kinetic energy \text{KE}=\dfrac{1}{2}mv^2. I also have W=\int_a^b F \, dt. Should I use \Delta \text{KE} +...

A colleague of mine has suggested using Liouville's Equation in order to calculate the probability of collision between spacecraft and debris fragments produced by collisions in space. The application would be to take the known initial states of all the debris fragments, to determine the...

Homework Statement Consider a sphere of magnetic material with radius R and magnetisation M in an applied field B_{applied}. Find an expression for: a) the total current flowing around the surface of the sphere; b) the net field at the centre of the sphere. Homework Equations...

I've been look at some stuff about applied physics recently to see if I would be interested in doing that, but it seems like mostly everywhere else it is different than it is here at Purdue. Applied Physics here at Purdue takes all of the core classes of the Physics degree (physics and college...

So Before I go on hoarding credits and what not I've come to this predicament (thanks to these forums). Which is more reccomended Physics or engineering? And Then what's the difference between physics and applied physics? Are they different degrees? My real dream is to work in a quantum...

1. Apply a magnetic field B to a hydrogen like atom. This gives rise to an additional potential energy term of mu_b*B*L_z/hbar a) Show that the eigenfunction PSI_nlm is still an eigenfunction in the presence of the magnetic field b) Show that the eigenvalues are E_n + m*mu_b*B How do...

This is NOT homework... If one takes the formula for work, which is force times distance, one can get the formula for power by taking the derivative of it with respect to time. But if we really do this correctly (by using calculus), we get: power=distance*(change of force/change in...

I have Bachelor's and Master's degrees in Aerospace Engineering. I recently got PhD admits from University of Michigan (Aerospace Engineering) and University of Texas at Austin (Computational & Applied Mathematics). I need to make a choice between the both and I hope you guys can help me out.

I'm quite new. Can anyone give me a link or sense of physics and applied mathematics journals and their rankings. I tried the search function but it all seems scattered. Google too is not helping much. Thanks y'all.

Applied Math? vs. Statistics? vs. Computer Science? First of all, I enjoy all of these, and was wondering which you would pick based on other factors... Which one will have the most job opportunities in the near future (10 years approx)? Which one will have the most chances for lucrative...

What would be some good major or minors that I can declare along with Applied Math? I think I'm pretty decided on the Applied Maths part, but I'd like to do probably a double major, or a minor, just to improve my credentials and my scope of knowledge. Do you think that's a good idea? If...

Homework Statement A 12kg sled is pulled by a 15N force at an angle of 35 degrees horizontally along a frictionless surface. a) Calculate acceleration of the sled. b) Calculate work done on the sled in 3.0 seconds. c) Calculate the power generated in pulling the sled. Homework...

Hi Guys, :smile: The following query would sound a bit ridiculous and abstract but it suddenly popped up in my head. :-p What would happen if I were to apply a purely sinusoidal AC voltage across a zero resistance conductor (theoretically, a super conductor) ? Zero resistance would mean...

What are different areas of study in Applied Mathematics? That's what I'm planning to do in college but I'm trying to figure out which area I'm going to focus on.

I've been doing some problems relative to car on an incline (and also boxes on an incline). Let's suppose we are given a problem with kinetic or static coefficient. I'm confusing when should or should not apply kinetic friction to a car, for example in some problems if brakes are applied then...

An Atwood's machine consists of blocks of masses m1 = 8.4 kg and m2 = 20.7 kg attached by a cord running over a pulley as in the figure below. The pulley is a solid cylinder with mass M = 7.40 kg and radius r = 0.200 m. The block of mass m2 is allowed to drop, and the cord turns the pulley...

Pros and cons of each? I want my future to have something to do with Math [ it's my passion duh ], but I'd rather study an application of it than in it's purety [ though that's still not out of the question ]. So right now I'm considering getting a Physics degree, or maybe an Engineering [...

Hi, I need to find an answer for the following question: What happens when you apply a tangential force instantenously to a disc laying on a frictionless surface? Does it rotate, translate or both? Here is an illustration for a better explanation...

Hi all. I am trying to get a sense for applications to graduate programs in applied math. What are the general GPA requirements for top-25 programs? I am currently doubling majoring in Physics and Economics looking to do applied mathematical modeling of social science problems (game theory...

I am trying to install a small crane to lift my disabled uncle into a boat. The crane is 41 inches high and the boom is 60 inches long. My uncle's weight is 250 pounds. What is the force that will be placed on the base of the crane. This answer will allow me to decide if I can mount the...

Homework Statement What is the value of the force of friction? Acceleration = 1m/s^2 Applied force = 5.5N Homework Equations :confused: The Attempt at a Solution :confused: I know what to do if mass or a coefficient of friction were given, but unfortunately they're not...

Hi everyone! I need to design a beam for a monorail system, like in the pictures above. http://img90.imageshack.us/img90/2629/monorailperfil.png http://img111.imageshack.us/img111/2987/perfiltransversal.png But the question, is how to know the maximum force that a beam flange can...

i only need 3 more for the B.S. degree. I know for sure I have to take Intro to Stats B, so I need to pick 2 more classes from: Numerical Analysis A, Combinatorics, Optimization, Abstract Algebra (I dropped the honors version), Topology, Fourier Analysis, Real Analysis B i'm scared to take real...

Hello, First time post long time lurker! I've got an interesting project I am working on which involves a few MechE subjects. The overall goal (for now) is to determine the drag force of a cylindrical cone headed object in sand under various pressures. The movement of the cylinder is the tricky...

Homework Statement Okay the first question is: 1. A hockey puck with mass 0.250 kg has initial velocity 3.00 i + 5.00 j m/s just before being hit by a hockey stick. The final velocity after the hit is -37.0 i + 25.0 j m/s. What was the magnitude of the impulse delivered by the stick to...

Below is a question I recently got wrong, and the (automated) feedback. Since the stars are in a stable configuration, I realize that the forces must be equal, but I thought that the differing gravitational forces were balanced by the centripetal forces of the orbit (the smaller star being...

Homework Statement Seawater is approximately .60M NaCl. What is the minimum pressure that must be applied at 25 degrees Celsius to purify seawater by reverse osmosis? Assume i=2.0 for NaCl. Homework Equations Osmotic pressure = MRT R= gas constant, .0821 Latm/mol K The Attempt at a...

i'm currently a physics and applied math double major considering applying to grad schools next fall. i plan on going to graduate school to study applied math or engineering. I'm worried that not too many companies will want someone with an applied math degree who studied modeling. my...

Got an ok to do a poster presentation at a neuroscience conference in Honk Kong. I am not sure whether my budget can stretch. I heard that grants are available which will cover half these costs. Anybody know anything about these grants, if traveling from Britain ?

Do Theoretical physicist uses pure maths or applied maths? Thanks

But right now all math feels like is, "Here is a bunch of numbers and funny looking symbols, now do this step, then this, now do that because it just works, no questions asked. Just do it this way, understood?" And then the word problems come at me and I'm clueless, unless it resembles the one...

Hi All, Im having some trouble in one of my classes and can't figure out how to do the following: If a single crystal of an FCC metal yields with an applied load of 1MPa in the [1 -1 2] direction, at what stress would the same metal yield if the load were applied in the [0 1 4] direction...

Do applied/college math learn the same thing as academic students but with a more shallow approach? Or does the college/math student learn both less the shallow approach and as well as less content?

Hi all, Most of the physics students are not sure about the way that he/she should follow after the graduation. How should I make a decision? Which circumstances are effective on choosing the way I follow? I'm triying to get some usefull information that i can get from experienced...

Homework Statement http://img444.imageshack.us/img444/7641/20240456gw8.png Homework Equations http://img14.imageshack.us/img14/5879/63445047rj2.png Note that the rightside of the rod is insulated. The Attempt at a Solution I get this model: \frac{ \partial{u} }{ \partial{t} } = \kappa...

Homework Statement hey just having a hard time figuring out a question about tension and applied force: A dock worker pulls two boxes connected by a rope on a horizontal floor, as shown in the figure (Intro 1 figure) . All the ropes are horizontal, and there is some friction with the floor...

Homework Statement Water stands at depth d behind a dam of width w . Find an expression for the net force of the water on the dam. Express your answer in terms of the variables w,d,p (density), and appropriate constants. Homework Equations P=F/A or pressure=Force/Area Hydrostatic...

I have room for one more class this semester, and I've narrowed it down to Abstract Algebra II or Applied Linear Algebra. I've taken a semester of abstract algebra and two semesters of linear algebra thus far. I'm interested in going to graduate school for either mathematical physics or...

Hi, Can anybody help with solving the attached problems please? Any advice would be appreciated. Thanks

Hello, I'm looking for books or websites about computer science/software engineering in aerospace technology. Stuff like, what kind of programming languages are used for stuff, the infrastructure, etc, etc, for satellites, aircraft, rockets, etc, etc... basically any info on...

Homework Statement If 1550J of work was done by moving a car a horizontal distance of 127m, what was the force applied to the car?(Assume the force was applied horizontally) Homework Equations Confused The Attempt at a Solution I need to see how its done I am confused

i am in big dilema of what to take up in near future;either PURE SCIENCE or APPLIED SCIENCE let me tell you that i want to become a SCIENTIST in the field of atomic science. so please please help me to know which is better for me and in which my future is sceure...

Is it possible to simply or rewrite \nabla_{\vec{r}}\iiint\frac{f(\vec{r}\,')\mathrm{d}\vec{r}\,'}{4\pi|\vec{r}-\vec{r}\,'|} \nabla_{\vec{r}}\times\iiint\frac{\vec{A}(\vec{r}\,')\mathrm{d}\vec{r}\,'}{4\pi|\vec{r}-\vec{r}\,'|} ? What's a good reference (internet, book) to learn this...

Hi PF, I'm a bit disappointed because the final exam is coming up next Monday and I can't solve this problem. Not that I don't know how to proceed, but I just get a wrong answer. Homework Statement See figure to imagine the situation. This is about a wheel of radius R which contains a circle...

Homework Statement If a force of 45 Newtons is needed to overcome friction and the coefficient of friction=0.26, what is the mass of the object? The Attempt at a Solution So would I need to find the frictional force first? But then I can't use the equation: (frictional...

Hi, I've got a quick question about tension. If there is a force applied to both ends, the total tension is the sum of those forces, right (i.e., they don't cancel each other out)? TIA!

I've got a 3D shape that, um, inherits from a cube (i.e. it retains properties characteristic of cubes). It has high symmetry. I wish to string all its vertices (of which there are 16) with - I dunno, yarn - forming the edges (of which there are 32). I can do the entire thing with a single...

Homework Statement Find the work done when a constant force F is applied to an object that moves along a vector D where units are pounds and feet Homework Equations F= < 64,36 > D = < 22, -33 > The Attempt at a Solution I found magnitude by taking square of 64^2 + 36^2. Cant...

so here's the thing, i basically have a physics minor and decided to go to applied math grad school since i think it'll open up more options and involves more math and won't involve experiments than engineering. i don't want to do theoretical physics since I'm concerned about job opportunities...