Application Definition and 998 Threads

I am working on polymer nanocmposite. I want suggestion regarding the application of it. Which is the most emerging application field of PNC ?

I have applied to SULI the past two summers and have been declined. I believe I am a strong candidate; I have a 3.81 gpa, have done chemistry research in a materials science and computational chem lab, and been published twice as an undergrad. The two labs I applied for are NREL and Argonne for...

Hi, I have a problem of which I do not know where to start or how to go about solving it. - The graph of the function equation y=f(x) is shown, where f(x) is a cubic polynomial. The graph cuts through the origin, touches the x-axis at (3,0) and passes through (4,4). a) - Prove that f(x) =...

Just found this forum--hope there isn't a max post limit haha. I have been a bit stumped on this, but when doing problems about deflection and axial loadings, I am confused when to use which equation. I think I know that axial member need to be 2 force members, loaded only at the ends, and...

Reading: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3597338/ However I don't understand what a useful application for this is? can someone explain?

Homework Statement Suppose that we have a system consisting of two interconnected tanks, each containing a brine solution. Tank A contains x(t) pounds of salt in 200 gallons of brine, and tank B contains y(t) pounds of salt in 300 gallons of brine. The mixture in each tank is kept uniform by...

I graduated a few years ago with a Biology Major and Physics Minor. After completing a M.Ed. I have decided to apply to physics masters/bridge programs and have been discussing it with old advisers who were very encouraging. I was hoping someone else had switched fields and could give me some...

I'm soon going to be finishing my MSci in Astrophysics and am looking to apply for PhDs (in cosmology) for autumn 2019 entry. I'm on track to getting a first but I don't have much other good stuff to include on my application at the moment. If any successful PhD applicants could tell me some of...

I applied to a fairly prestigious engineering school in france, taught in english. I was taken for an interview 2 weeks ago and it was very casual, didnt go great nor badly. I was told I'd receive a response to my application by the "end of next week", problem is that was last friday, and I...

I need to convert mj/mm^2 to bar is there a way to do that ? I think we cannot ,bar is N/m^2 but we have j/m^2

Homework Statement Hello. There is a financial metric called time weighted rate of return, which is computed using the following formula: 1) if we compute daily returns, or other returns within a year: r tw = (1+r1) x (1+r2) x...x (1+r nth year), where r tw is the time weighted rate of return...

Homework Statement [/B] I am stuck on the section of my lecture notes attached, where it says that equation 4.20 follows from 4.18 via an application of the fundamental theorem of calculus Homework Equations FoC: if ## f## is cts on ##[a,b]## then the function ...

Find two different numbers such that the sum of their squares shall equal a cube, and the sum of their cubes equal a square. Set up: x^2 + y^2 = z^3 x^3 + y^3 = z^2 Is this correct?

Hi, Here's my question on how to answer this question on online or paper job boards:"Why do I plan on leaving this company?"? The thing is, in my case I'm not planning on leaving/resigning/quitting my current job position. I'm planning on getting dual strings of income/multiple incomes. My...

Some birds are at the top of the tree while the others are at the botton, if one bird goes up, the birds of the top of the tree will be twice as the below of the tree while if one bird comes down the number of the birds at the top of the tree and below will be the same. How many birds are at...

Homework Statement Question ==== An infinitely long insulating cylindrical rod with a positive charge ##\lambda## per unit length and of radius ##R_1## is surrounded by a thin conducting cylindrical shell (which is also infinitely long) with a charge per unit length of ##-2\lambda## and radius...

Hi, I'm studying about Conformal Mapping in Complex Analysis and see its applications in Heat transfer, Fluid and Static Eletrocity. But it is said that this subject is very useful in many branches of Physics. Can you tell me about that? Thanks.

Here is a problem that should be simple for most anyone on this forum but I thought it might be fun to throw it out there . . . Background: There is a certain 4 day (or so) river float in Montana that is so popular that about 20 years ago the state decided to limit floaters by issuing float...

Hi! I'm applying for some PhD programs and I would like to have some advices. I think I will use the same statement for personal and purpose, in different universities. They ask only for one and their prompt are similar. I'll change some particular details on research. Is that a bad idea? Here...

Hi, I would like to ask you all if you can five me some guidence on how to procede in following situatio . First i will give some context for my situation. I have finnished my undergraduate and my masters degree in institution that is outside EU, during my masters degree i had done research in...

Homework Statement Two linear springs with stiffness Kh, Kv are attached to a single mass m at right angle to each other, i.e; one of the spring(Kh) is in the horizontal direction(x-axis) and the other(Kv) is in the vertical direction(y-axis). A constant force F is being applied to the mass...

I get how to find vertical and horizontal forces on a submerged surface (vertical = weight of fluid and horizontal = force on vertical projection). I also get how to find the point of application for the horizontal force using a moment balance. But how do you determine the point of application...

Homework Statement A mouse starts at the origin and runs up the y-axis with a speed a. At the same time, a cat running with speed b, starts at the point (c,0) and pursues the mouse. i. What is the path of the cat? ii. Assume a<b and solve for y(x). How far does the mouse run before being...

Hi! For my math investigation project, I was trying to predict the trajectory of an object in a projectile motion with significant air resistance by using the Euler's Method. But it seems like the differential equation involved there can easily be separated into different variables, and so it...

I've got experience with win32API but its' a pain in the ass. What else is good for cross platform low level programming of apps, want it to work for PC, linux, be able to handle serial data streams, convert data and do C++ tier things. So far been using processing but that's not powerful...

Hi everyone! I am currently in the process of applying for a masters degree in theoretical physics. I am having troubles on writing the personal statement part since I really need to make it shine (200 applications and 20 places:frown:) . Any definitely do's and dont's I should bear in mind? A...

I'm doing my best to be realistic, but can't see the forest for the trees right now. Thoughts? Opinions? I'd appreciate it if anyone tried to answer my questions – many thanks in advance! Background Double major Physics & EE (with a couple minors) at nowhere special Physics GPA = 3.3 / EE...

I'm right now in Senior year in a bad school ( I mean ranking 1k+, actually best in country so I have an excuse ), with good GPA ( about 3.25 equivalent ) considering applying for grad school in EU in nuclear/high energy physics. However I'm from a not so good university undergrad research isn't...

I have implemented the closed-loop motor control system as above in a Matlab simulation (pic Kalman.png). Here, the Kalman filter estimates the torque disturbance and angular speed of the motor and those are feed to the RLS algorithm for parameter identification, here it estimates the combined...

Hello everyone, I'm Aniekan Eshiet. A Physics grad. An educationist, ex-banker, Logistics expert, blogger and Realtor. Aside Physical Science, I happen to be a realtor right now based on interest. Kindly give your opinion on how best to maximise my knowledge of Physics in real estate.

I have a question that I feel I cannot find enough on. We just did a practical in Physics class where we used a laser light shined on a single hair strand in order to create a diffraction pattern and use formulae to determine the hair's width. Because of Babinet's principle, the hair managed to...

Boeing and Japan's Space Agency Are Testing LIDAR on Aircraft http://www.popularmechanics.com/flight/news/a27595/boeing-japan-space-agency-develop-lidar-planes/ LIDAR, The equivalent of radar, but with lasers, could help aircraft track weather...

Homework Statement After a mishap, a 76.0-kg circus performer clings to a trapeze, which is being pulled to the side by another circus artist, as shown here. Calculate the tension in the two ropes if the person is momentarily motionless. Include a free body diagram in your solution Homework...

Hi, Regarding transmission line booster transformer topologies I'm curious as to what would happen over all the possible permutations. I refer you to the following: http://top10electrical.blogspot.com.au/2015/03/booster-transformer.html I presume that in real life the booster transformers...

Homework Statement "In an early attempt to understand atomic structure, Niels Bohr modeled the hydrogen atom as an electron in uniform circular motion about a proton with the centripetal force caused by Colomb attraction. He predicted the radius of the electron's orbit to be 5.29x10^(-11) m...

A can do a piece of work in 25 days and B can do the same work in 30 days. They work together for 5 days and then A leaves. B will finish the remaining work in... a) 21 days b) 11 days c) 20 days d) 19 days Is the following equation correct? 1/25 + 1/B = 1/5

Hello folks, Got a project I've been tasked with completing. We have a small meat locker, approximately 4' x 6', and I need to design and build an above-head rack system to hang hams and other meats on. (approximately 50 to 60 lbs each) Can anyone offer a good starting point for a food grade...

The problem concerns a liquid column (assume infinitely long) with radius R connected to an electric potential V, the liquid thus has certain surface charge density. A small perturbation may change the surface profile of the cylinder (small compared to R) and thus change its surface charge...

Hi, I am a PhD student, I work on transversal submanifolds. I want to know if someone has an example of application of transversality in physics or ingenning or in any other area, I hear that there is an application in construction of plans but I didn't find it. Thank you in advance.

A ball is thrown straight upward. Suppose that the height of the ball at time t is h = -16t^2 + 96t, where h is in feet and t is in seconds, with t = 0 corresponding to the instant the ball is first tossed. A. How long does it take for the ball to land? To do A, I must let h = 0 and solve for...

Hello, My name is muaadh. I had an experiment in Physic about resonance in one end closed pipe. Our homework is to find applications in real life about this experiment. This photo of our experiment.

Hi there I'm prepping for a big test tomorrow and I'm really struggling with this question:If f′′(x)≥−1, x belongs to (−15,15), and f′(1)=3, find the interval over which x is definitely increasing.I'm struggling with substitution because I just don't seem to have enough values. Is there a...

Hi, I have never found a satisfactory explanation for why the Bernoulli equation is not valid when the streamline passes through a turbine, pump or another work transferring device. I have read many books that simply state this limitation without providing a convincing reason. Bernoulli...

Homework Statement I have a 560 ohm gate resistor on an IGBT. Usually an IGBT doesn't require a gate resistor as it already has a high impedance of its own, but I'm told that for switching applications a gate resistor can be beneficial. The attempt at a solution If there is a gate resistor...

Hi everyone, just a quick question about college applications. I'm in a STEM program at a public school, and some of the classes that I take are weighted as AP even though they are not official AP classes. Some people that I've talked to have seemed to disregard these as just the school being...

Does anyone have papers or journals describing the application of ADuCM350 ? Thanks for your information.

A ball is thrown straight upward. Suppose that the height of the ball at time t is h = -16t^2 + 96t, where h is in feet and t is in seconds, with t = 0 corresponding to the instant that the ball is first tossed. (A) How long does it take for the ball to drop? (B) At what time is the height...

I need to make a project that integrates physics with math, involving the use of integrals to find moment inertia of areas. The theory could be read here :http://www.intmath.com/applications-integration/6-moments-inertia.php I need to make an object that applies the theory above. Can anybody...

I'm working on a project of magnetic levitation of the lexus hoverboard Which is based on Meissner effect and suprconductivity and I have to look for contraint, probability, choice, and optimization in this project, i really find a little bit tough where to start this, so if anyone have any...

Homework Statement The rockets of the Goths and the Huns are each 1000 m long in their respective rest frame. The rockets pass each other, virtually touching, at relative speed of 0.8 c. The Huns have a laser cannon at the rear of their rocket that shoots a deadly laser beam at right angles to...