Apply Definition and 483 Threads

Homework Statement An aluminum cup of 120 cm3 capacity is filled with glycerin at 15°C. How much glycerin, if any, will spill out of the cup if the temperature of the cup and glycerin is raised to 34°;C? Homework Equations The Attempt at a Solution I think I can solve this no...

Hello all, I want to filter DC offset for a signal by applying a high-pass filter to it (I've been told that to filter the DC offset this is what I should do - I'm not sure why exactly!) My question is; do I do that in the time-domain or frequency-domain after applying FFT? And I would...

Homework Statement The relation xRy is defined as "x has drawn a picture of y". R is on the set of all people. Is this relation: reflexive, irreflexive, symmetric, asymmetric, antisymmetric, transitive ? Homework Equations What confuses me about this problem is that there is uncertainty...

Suppose I have a disk that is 100,000 km in diameter. I attempt to rotate it at 1 revolution per second. Am I unsuccessful because the material on the outside edge would have to travel faster then light or am I successful because length contraction at the outside edge reduces the...

Homework Statement Values from previous problem: Pre-collision: v2kg=6m/s -->, v3kg=3m/s <-- Post-collision: v2kg=2m/s <--, v3kg=5.67m/s --> Collision time: 0.2 sec Homework Equations F=mA=m(Δv/Δt) The Attempt at a Solution My instinct to solve this was to use the pre-collision values to...

Greetings, I have read the explanation on this forum here: https://www.physicsforums.com/showthread.php?t=441637 which discusses Faraday's Law of Induction, but I'm having a hard time understanding how to extrapolate that to my problem. My goal: Construct a circuit that measures ambient...

Homework Statement A factory worker pushes a 30.0-kg crate a distance of 4.5. along a level floor at constant speed by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is 0.25. (a) What magnitude of force must the worker apply? Homework...

Hi guys, I am trying to figure out what Applied Math PhD programs I should I apply to this fall. My main interests are in computational science, specifically numerical methods and stochastic methods. My profile is as follow: Undergrad: big state school, solid reputation in math Major...

So I have a 1st class honours degree in maths and physics from my undergrad university. I then went on to do the part iii course at cambridge where i did only theoretical physics courses. I got a merit for that. Currently I'm working abroad for a year in a non-maths related job (hopefully my...

Homework Statement [SIZE="3"]Apply nodal analysis to the circuit to find the power (released or absorbed?) by the 3-mA source. [PLAIN]http://img15.imageshack.us/img15/1546/circuity.png Homework Equations Ohm's Law V = IR The Attempt at a Solution OK, so firstly I have to...

So I am a final year math student and there are two questions here, 1) I am a math student but all of my research has been in CS. If I do pursue a CS degree it will be in something mathematical like cryptography, but I really have no clue. Should I be applying to Math or CS departments? Does...

I am considering applying for transfer to a school this Spring, but I know my application will be even stronger if I apply this fall. I really, really want to leave this Spring though. If I were to be rejected for Spring transfer, would this impact my Fall application badly? It is a competitive...

i want to study cosmology,and i am going to apply this year. i am not qualified for the top 20 universities' Ph.D program, and i think i should apply some universities ranking from 30 to 100, i mean , ranking of physics, but still strong enough in theory cosmology. however, i have no idea...

Hi everybody, I've been deciding to transfer to another Ontario University (York University) and I have looked to see if the program that I am interested in is open and to my surprise the program is open. I have already applied to the program to be on the safe side, but if a program is still...

Hi, what mathematics does DSP use? And is it easy to use this knowledge to apply to other areas of study, where it's needed to study signals?

I got a bachelors in physics in '08 at an upper liberal arts college. Intended to take a year off but fell into a depressed rut (father died, girlfriend left, etc etc) and just worked a low-skill job / volunteered / played wow for two years. Cleaned my act up a year ago. I'd surfed through...

Hello everyboby ! I just want to know that if its possible to apply for a deutch taght master program if you don't have a germanic background Thanks for the help

I've never known this but the equation only seems to contain a conduction term so I assume it can only apply to solids. Is there a similar equation for the time-evolution of temperature fields in gases, where convection is also considered? (how about radiation? although that sounds like it will...

Homework Statement Let's say I have 3x2 + 3y2 + 3z2 + 8xz - 8xy - 8zy How can I apply the discirminant test to this 3d surface? The Attempt at a Solution In all of them, I keep getting 64 - 36 > 0 But there are like different kinds of hyperbola in 3d... i don't want to use...

Homework Statement What is the surface area of a hemi-sphere of radius 6 centered at the origin above the xy-plane lying outside the cylinder r2 = 9 The Attempt at a Solution I did a lot of algebra using the hard way by setting z = \sqrt{6^2 - x^2 - y^2} and use the formula A(S) =...

Need help, I don't know when to apply coz my current GPA... First, thank you for clicking this thread and trying to help me. I am going to apply grad school for a PhD, but my situation now is... Let me explain. My current overall GPA is 3.24 (current Major GPA 3.67), thanks to those non-major...

Hello,:smile: Actually I'm just curious to know when and where we can apply mesh and nodal analyses. Perhaps, you can help me to understand this with some simple circuit diagrams. Thanks 1: To apply nodal analysis we must have at least two nodes. Am I correct? Moreover, we also need one extra...

Hi, We sell hair products; both synthetic and human hair. Sometimes the customer will cut the hair and then say the hair was too short and request a refund, discount or exchange. We are searching for a safe chemical that we can apply to the ends of the hair so we know if the customer has cut...

I was curious about my salary expectations for the South East area in Electrical Engineering. I have my BSEE and will be finishing up my MSEE this year (May 2012). My gpa's are decent, 3.4 and 4.0 respectively. I have had 2 internships and am the president of an honor society and am...

How can the conservation of energy be applied to the entire universe? How can we define the energy of the universe? Is this definition unique for different observers? What is the difference between the thermodynamics universe (system+environment) and the cosmological universe?

I am currently in the process of finding schools and programs that I would like to apply to for graduate studies, and I thought I'd ask around here for some advice. Quick explanation of what I'm interested in: I am currently an undergrad applied math major with a minor in physics at a large...

Hi, This thing just popped into my head. Although I am 2-3 years away from applying for grad school, is there any way to apply for grad school, fall session, if you can get your undergrad transcripts not before may-june? Typically, applications close before december of the previous year...

I am making a list of all the schools I am applying to for spring 2012 tomorrow. So far, I have Colorado School of Mines, UC-Boulder, UT-Austin, Washington-Seattle. I am looking to live out west, preferably near/in a progressive city (I'm a vegan and want grocery store/farmers market...

Homework Statement show a function f_n is not uniformly convergent using a theorem: Homework Equations if f_n converges uniformly to F on D and if each f_n is cont. on D, then F is cont. on D The Attempt at a Solution not really sure what to do. use the contrapositive? would that...

Hi, I am trying to reduce the error in the controller for a stewart platform. At the moment I am trying to experiment with estimating the transfer function of the error, and applying the inverse of the transfer function to the input data. I have an input file sampled at 50hz of...

If you were to push a wall and it were to not accelerate, would this mean you did not apply force to the wall according to the equation F=ma?

When I read about Fresnel equations, I see that it is based on boundary equations determined by Maxwell's equations. So I would think these equations only apply to EM waves. But is there a similar behavior in other waves like sound waves in water? Would I want to use or modify Fresnel...

Please teach me this: In QTF theory book,I have not seen what saying about probability of creating or anihilating particle(quantum).So I wonder whether we can apply superposition principle for the states with different numbers of particles in Fock space. Thank you in advanced.

Homework Statement A box of mass m = 4.5 kg rests on a larger box of mass M = 26.0 kg, which is at rest on a frictionless surface. The coefficient of static friction between the two boxes is μs = 0.51. An ideal string runs between the two boxes around a fixed pulley. What is the maximum force F...

The law says that the maximum thermal efficiency of a heat engine can be 88%. If I have and internal combustion engine using 9.8 cc/min instead of 25 to 30 cc/min and the other accepted figure is a 2L 4 cylinder engine for idle is it uses approx 5 HP of fuel just just to idle. So I am doing...

Suppose I am standing on the Earth surface and observing a rockhet of very high speed then i will see the length the rocket contracted and abserver on the rocket will also see my length contracted(I am not sure about it)in the direction of motion. Is the same case takes place with time...

I am a sophomore at a Canadian University majoring in Mathematics and Computer Science. My overall GPA is 3.44 but I am hoping it to raise it to a 3.7 by the end of my junior year. I have heard that most undergrads apply for graduate schools at the end of their junior year. Since my GPA isn't...

As in, what if you have a VERY high voltage? Then I = V/R. But what if you only have a limited number of charge carriers that could eventually run out? Then what will happen to the current? Will it suddenly stop following Ohm's Law? Will it immediately drop off to 0, or gradually drop off to 0?

Does the wave–particle duality apply only to electrons and photons?

Homework Statement S is the balance of a savings account W is the amount withdrawn per year. k is a rate percentage of continuous interest per year 1. Solve the differential Equation above. 2. Draw a phase portrait and assess the solution's stability. 3. Assume you have $1,000,000 for...

Homework Statement A jet of water having velocity v = 10m/s and stream cross section = 2cm^2 hits a flat plate perpendicularly, with water splashing out parallel to plate. Find the force that plate experiences. density of water d=1000kg/m^3 Homework Equations 0.5dv^2 = p The Attempt...

I can offer no further insight.

I am confused with some of the aspects of time dilation. I read the derivation (the one with the mirrors) and I understand it and it seems to make sense to me. In the usual derivation (http://www.drphysics.com/syllabus/time/time.html) , person A who moves with the apparatus (mirror-light...

Basically, the title says it all. I've never heard of Noether charge corresponding to gauge symmetry of the Lagrangian. Is it because gauge symmetry isn't the "right type" of symmetry (one parameter continuous symmetry) so the Noether theorem doesn't apply to it?

I am almost done with applying to graduate schools in mathematics. My new question now is whether to apply my undergraduate institution's graduate program. First of all, all the professors that I have talked to told me that I should go somewhere else for graduate school. And I strongly agree...

I am a 2nd year student at BITS Pilani(India) and I am pursuing in mechanical engg. Since in India you don't have a lot of options other than engineering and my college has a good reputation here, I decided to opt for engineering. However, I don't have any real interest in engineering and I...

im a physics and math major and my gpa is very low so i can only apply for noncompetitive job.

Everyone has heard that a butterfly flapping it's wings in one place may ultimately cause a tornado to form in another place. I really have a problem with this. It has also been said that if all the molecules in a cup of coffee were to move the same direction at the same time that the coffee...

Homework Statement Evaluate \int_0^1 \! \int_0^{1-x} \! \sqrt{x+y} \left(y-2x\right)^{2} \, \, \mathrm{d}y \, \mathrm{d}x. by applying the appropriate transformation.Homework Equations N/AThe Attempt at a Solution So far, the best I can come up with is u=1-x, v=x+y, which gives me \int_0^1 \...

Hello, Thanks at first. If anyone can understand, then I would like to know how do I get to equation 4.15. Its a laplacian equation in which I want to apply the Fourier transform. Thanks again.