Applied Definition and 1000 Threads

Hello physicists,so i am debasish continuing my 5 year integrated MSc in applied physics from cet,bbsr,india and very much interested to pursue my doctorate from Harvard university,some of my seniors are advising me must to complete my MS degree before i join to Harvard university through gre...

I saw an explanation for why Jupiter has a slower tangential velocity in its orbit compared to inner planets and it stated: "Remember that by Kepler’s second law, the planets each sweep-out the same area in the same amount of time. The outer planets’ elliptical orbits are considerably larger...

Hello Every one I want to know how the pressure applied at a particular point on a rod will be equally divided underneath of the rod. What materials are good to achieve this kind of situation?

Hi all, My husband has a Master's degree in Applied Mathematics and we've been job searching for over 6 months now. Only gotten a couple of interviews and sent out hundreds of resumes. I feel like we're doing something wrong because I've always read/heard that people with this major should be...

Hi everybody, can you please help me with this question and with the working out? A ball was dropped from a height of 270 m. On each rebound, it rose to 10% of the previous height. Find the total vertical distance traveled by the ball before coming to rest. Thanks, Starkiller2301

Usually in textbooks Ampere's law is just illustrated using 2D loops which forms a plane. Can the law be applied to 3D loops which cannot form a plane surface within the loop? In a 3D loop which surface should we count when we count the current? In 2D case it is easy because there can only be a...

I am at starting to become increasingly worried and I need help/advice/what ever you can give me. My major is mathematics, I will be getting a BS in it next year. I have an interest in Analysis and Probability and will be taking a years sequence in Integration and Measure that year. My...

i want to prepare a project in applied optics but i am to confused about what topics should i select.

Force" F"is applied on M1 .Although force applied is not directly on M2,but it will also experience this force" F" via M1,right? But I don't think it is correct.Because it implies that no matter how big the force on M1,the net force on M1 will always remain zero.And there will be unbalanced...

i have B.Sc in Physics and Electronics and Master in Electronics and Communication Physics please which area is the best for me to go for my PhD

Homework Statement A particle of mass 14kg, slides along a straight wire in a horizontal plane. The coefficient of dynamic friction u=0.6 The equation of the line of the wire is y=3√x so that the angle between the wire and the X-axis is 60 degrees. The particle accelerates with a constant...

Atyy spotted 3 potentially important LQG papers and added them to the biblio thread. The B-O approximation has proven essential in quantum chemistry and similar applications dealing with wave functions of complex systems with many components. Geometry is such a system and it seems reasonable...

I have noticed in the last few months that my interests are moving towards applied mathematics and computing as opposed to engineering. My favorite subjects fluid mechanics, but sadly the aerospace industry is dead (ie, there haven't been many new advances in the last 30 years). I want to get a...

Homework Statement Homework Equations None. The Attempt at a Solution I understand the basic concept of Matthiessen's rule that the contribution to electronic resistivity / conductivity is split into two independant componants, resistivity due to impurities and resistivity due to the...

Hello, I need to calculate the force applied within a clutch pack by an expanding disk. Can you guys tell me if there is anyway to do this? I am working to find the torque capacity of a centrifugal clutch using the equation: Torque Capacity = 2/3 * COF * n * F * Radius Gyration where COF =...

Homework Statement An isosceles triangle has a base of length 4 and two sides of length 2sqrt(2). Let P be a point on the perpendicular bisector of the base. Find the location P that minimizes the sum of the distances between P and the three vertices. Homework Equations N/A The Attempt at a...

So we are doing a lab in class where you have to calculate coefficient of friction. This picture shows exactly what we are doing except the wooden block is flat There weight on the string. http://facstaff.gpc.edu/~apepper/website pics/friction2.jpg So what does added load (there is no...

Consider a wire connected to a battery. Now,potential is analogous to the energy of the particles.And potential in a resistor drops because of the friction inside the resistor(considering there is no friction along the wire and outside the resistor).So the friction determines how much energy is...

Problem 1 20 marks (i) ˆx = (1, 0) and ˆy = (0, 1) are the Cartesian unit vectors and the vectors v1 and v2 are defined as v1 = −4ˆx + 0ˆy , v2 = 2ˆx − 7ˆy . Determine the polar coordinate unit vectors ˆr and ˆθ for v1 and v2 and hence express v1 and v2 as a linear combination of ˆr and ˆθ. [4]...

In the pulley system shown in Figure Q1 the tangential forces on the pulleys are shown. Each pulley adds an additional load / weight of 500N on the shaft. Calculate a suitable shaft diameter so that to avoid failure by the maximum shear stress criterion. The tensile yield strength of the shaft...

Especially for 2nd & 3rd year courses I'm looking at such as PDEs, Fourier series & laplace tranforms, Vector calculus, intermediate level linear algebra, computational maths, lagranian and hamiltonian dynamics?

http://oi59.tinypic.com/50lfv9.jpg Above is a link to the list of the three different emphasis offered at my university for statistics major (it is named "statistics" major but has an "applied statistics" curriculum). Please tell me which emphasis of the three you think is most employable...

Homework Statement On a horizontal floor there are 3 tiles on each other, 3 kg each. Which horizontal force should be applied in the middle tile, so that only it can be removed from the pile , when we know that the friction coefficient between the tiles is 0,3. Homework Equations...

Hi, I am going to try and explain this as best I can. I have a drum submerged in water (200ltr drum) filled with +- 150ltr of air. This is attached to a chain that goes around a sprocket at the bottom of the tank and the sprocket is mounted to a shaft that goes out of my tank. How do I calculate...

Hi, I recently graduated with a B.S. in Mechanical Engineering. I'm currently exploring my academic options as to continuing education. After reading through the UCLA master's program concentrations, I came across the micro electro-mechanical systems - nanotechnology category. I found this...

Hi, Well, my name is Etienne and this isn't my first time posting about my choice of major. I am in 12th grade, and I have an admission exam to UNAM next month, (National Autonomous University of Mexico), for APPLIED MATHEMATICS & COMPUTER SCIENCE or I have also seen it been called Applied and...

Homework Statement A beam (e.g. a steel liner) of a length L is bent between two supports, as shown in fig (a). According to the Euler column, the shape is a half period of a sine. Now, a force P is applied at the axis of symmetry - fig (b). What is the shape of the liner? y=f(x) Instead of the...

Homework Statement A 50 kg is pushed across a floor by a constant horizontal force of 200 N. What is the force of friction? Homework Equations Ffr = coeff*Fn The Attempt at a Solution I'm not sure how to find it as I don't know the coefficient. The answer says the answer is 200 N, but I don't...

Hello everyone. My name is Zara, I'm new to the forum! I'm in the process of coming up with an applied calculus project as a final project for my calculus I course. Here are the requirements for the project: And here is my idea so far (please don't laugh) (Sweating): In 2013, approximately...

I'm taking Pre-Calculus I here at my community college. From there, students can go to either Pre-Calculus II or Applied Calculus (but not to "regular" Calculus I). Applied calc. is supposed to be business calculus used in business, biology, and other degrees and the director told me that...

So I want to go into applied mathematics, I can either get a general math degree or an "applied and computational" degree. Does the degree title make a difference? The general math degree I can graduate a term sooner with, the main differences in the courses is that for the applied and...

(Sorry if these are the wrong forums) All right, so, I know the difference between pure and applied mathematics as well as mathematical vs theoretical physics. But, I don't quite get the difference between mathematical physics and applied mathematics. Aren't they both working on mathematical...

Homework Statement Q: A boy falls with the acceleration 4g in a free fall until he hits a net. His mass is 78kg. You can ignore other forces. With what force does he influence the net? Homework Equations F=m*a The Attempt at a Solution I use the formula F=m*a which gives med...

I had this problem in my exam. It required me to calculate relative permittivity of a dielectric slab which acquires a surface charge density of 800micro Coulomb/m^2 when subjected to an electric field of 10^8 V/m. Applying E=sigma/(2epsilon), I got relative permittivity as 0.45 which is less...

Hi, I posted a thread a while back about a problem I had in a class, it has resolved itself fortunately but now I have another question. I am an undergraduate mathematics major and I initially planed to go to(and likely will go to) graduate school in applied mathematics. I have always had a...

Im about to graduate with a physics and math double major, so I'm currently searching for graduate programs that include applied physics, applied math, and engineering. Ultimately I am interested in applying science/math to practical applications in engineering or Earth science. My goal is to...

Today in class we learned about how if a force F is applied to a dumbbell on its center of mass and then separately applied to the edge where it gets its maximum torque, the dumbbell will have the same CM velocity after. It makes sense when you think about it in terms of momentum. F times T...

Hello! I am currently doing my first year in a mechanical engineering degree(which after a few years branches off to applied mechanics), which is a 5 year integrated master's. Since before i applied, I have been uncertain about which study I really want to/should do, and that uncertainty still...

Hello! I am currently doing my first year in a mechanical engineering degree(which after a few years branches off to applied mechanics), which is a 5 year integrated master's. Since before i applied, I have been uncertain about which study I really want to/should do, and that uncertainty still...

I am about to graduate with an aerospace engineering degree. I am planning to go into grad school for Applied physics(probably plasma physics), which I find very interesting. But the main reason I joined the aerospace degree was because I was interested in CFD. But since I could't land any...

I am an international student studying Aerospace engineering in undergrad with a plan to do BS in physics too in US. I am really interested in Fluid mechanics, plasma physics and those stuffs but my university doesn't offer any of those and hence the reason I took aero and physics. But I am...

I am applying for graduate school for applied math or engineering science. I am in a normal big ten school. I am in BS math and BA chemistry. I have a rather high gpa 3.9. Till now, I have taken 9 high level math courses, only one get A-, others are A, and 5 high level chemistry courses, only...

Einstein's work resulted in the production of the atom bomb. Since then, we've started using lasers in consumer devices (lasers use quantum mechanics.) We've also started using new cool materials. But as for subatomic physics--the kind that we're doing in particle accelerators--what have we...

Homework Statement With what initial speed must an object be projected vertically upward from the surface of Earshot rise to a maximum height equal to Earth's radius? (neglect air resistance.) Apply energy conservation. Homework Equations ##E_{k_1}+E_{g_1}=E_{k_2}+E_{g_2}##, however since...

Anyone know which department has a higher acceptance rate for PhD's? Or if they are pooled into one applicant pool?

Hi PF! So let's say I have some vector field, call it ##\vec{F}## and let ##\vec{F}## be 2-Dimensional and suppose I wanted to compute ##\iint_D \nabla \cdot \vec{F} dD##. Using green's theorem we could write ##\iint_D \nabla \cdot \vec{F} dD = - \int_{\partial D} \vec{F} \cdot \hat n dS##...

I am looking to find out if my choices of graduate programs for a MS in applied physics are reputable. I was accepted to both CSU long Beach, SFSU, and Fresno.. Does anyone have an opinion on these schools? Is it normal that they don't offer tuition waivers? They are very vague on what they...

Hi :), I need to calculate the shear stress applied between 2 plates and I don't remember how to take the thickness of the plates into account, --So basically I will be grateful if somebody could write the equillibrium for shearing stress between 2 plates (1 plate is applying force on the other...

Homework Statement A 2000 kg car is driving up a 20° grade at a speed of 85 km/h. What force must be applied to the car to accelerate it up to 100 km/h in 10s? m= 2000 kg θ= 20° Vo= 85 km/hr = 23.6 m/s Vf = 100 km/hr = 27.8 m/s t = 10 s Homework Equations F = ma (Fx = max) Fx= Fcosθ Vox =...

Hello all, I am currently pursuing an undergrad degree in Mechanical Engineering with a minor in Mathematics. I choose to major in MechE because it seemed to me to be the most broad of the engineering disciplines and because I've heard the career prospects for people with engineering degrees are...