Applications Definition and 662 Threads

Homework Statement A pilot wishes to fly form city A to city B, a distance of 720 km on a bearing of 70 degrees. The speed of the plane is 700 km/h. An 60 km/h wind is blowing on a bearing of 110 degrees. What heading should the pilot take to reach his or her destination? How long will the...

I have two Windows Visual C++ programs that need fast inter-process communication. One is limited to 64-bit because it depends on 8 gigs of ram, and the other is limited to 32-bit because it depends on a proprietary 32-bit .dll I need to send basically two integers from the 64-bit...

Can anyone tell me the Engineering applications of Functional analysis with a real world example, If possible? Thanks in advance.

What are practical applications of the gamma function?

Homework Statement The base of an isosceles triangle is 20 cm and the altitude is increasing at the rate of 1 cm/min. At what rate is the base angle increasing when the area is 100 cm^2?Homework Equations The Attempt at a Solution Im very unsure about my solution method. I have attached a...

Hello! I'm currently taking a course in group- and ring theory, and we are now dealing with a chapter on finitely generated modules over PIDs. I have stumbled across some problems that I can't really get my head around. It is one in particular that I would very much like to understand, and I...

Hi all, I'm just wondering if this is correct: \frac{dP}{dt} =0.2P If the population is now 5300: (a) Write a formula for the population in t years time. To do this would i antidifferntiate 0.2P, so.. (0.2P^2)/2 = 0.1P^2 + t? Thank you!

Homework Statement We say that a differentiable function f : \mathbb{R}^n \rightarrow \mathbb{R} is homogenous of degree p if, for every \mathbf{x} \in \mathbb{R}^n and every a>0, f(a\mathbf{x}) = a^pf(\mathbf{x}). Show that, if f is homogenous, then \mathbf{x} \cdot \nabla f(\mathbf{x}) = p...

I am a mathematics graduate student who is doing research in symplectic geometry (specifically symplectic toric orbifolds, symplectic reduction, Hamiltonian actions of tori in the symplectic category, etc). I often have tried to convince others of the importance of symplectic geometry, so I...

Have you ever used the Ideal Gas Law, Charles' Law, Boyls' Law, or the Combined Gas Law for anything in electrical engineering?

Hi all new to the forum here. I'm a cnc machinist here in Austin Texas looking for some mechanical advice regarding the use of stainless steel in high strength automotive applications. Basically, I'm planning on starting up my own little business replicating obsolete and out of production...

Homework Statement A solid acid is dissolved in enough water to make 200 mL of a solution. 40.0 mL of the solution is titrated to a phenolphtalein end point with an NaOH solution. The neutralized solution and the remainder of the acid solution are then mixed and the pH of the resulting...

I'm wondering how I can expect the "course" I'm taking this summer to look on a graduate school application for physics? I put "course" in quotations because I'm the only one in the course, and it is kind of made up for me as sort of an independent study with a professor. The professor will...

What are the Modern day applications of Hooke's Law?

Homework Statement The height of an object moving vertically is given by s = -16t2 + 96t + 112, when s in ft and t in sec. a. Find the object's velocity when t=0 b. Find its maximum height and when it occurs. c. Find its velocity when s=0 The Attempt at a Solution a. Now I know to find the...

what do they generally look for? i need to write about how one of my hobbies and what i learned from it. english is not my first language so any tips and strategy could be useful.

I have an MS in physics and did not get into any of the phd programs I applied to. What schools are still accepting applications, and which ones might still have funding for students? I am interested in many areas of physics and my experience is in computation and some nuclear. I have average...

Hi there! I am just wondering about the applications of reactance diagram in the real world. What are the uses of this diagram? Thanks!

Hello, I came across the following formula after asking for practical applications of math in finance and other sciences, it concerns mortgage payments A = Pi/1-(1+i)^-n The above denominator end part reads (1+i)^(-n) As a mathematical question, is it possible to rearrange the...

Guys, our thesis defense is near already. It will be this thursday. I just want to know some more real life applications of Circular Motion involving liquids. The experiment we performed was we placed water inside a bucket then we spin it around. (Vertically) Some water spilled but most of the...

Homework Statement The following describes a method used to measure the specific heat ratio "gamma" of a gas. The gas, assumed ideal, is confined within a vertical cylindrical container and supports a freely moving piston of mass m. The piston and cylinder both same the same cross-sectional...

For my tensor analysis class we have to do some project/research on tensor applications. I've done a search and I haven't found anything I'm looking for. I want to steer clear of the usual applications (physics/engineering) and try to do something a bit different. My professor suggests...

Howdy big timers. I need some stouthearted mechanical engineers to help me out with my reasoning here. Since I graduated some five years ago I’ve have found that there is a gap between what you know as a college graduate, and what that knowledge does and means in the real world. In the field...

Sorry for bringing up a somewhat vacuous question. I've applied for PhD study in particle theory at 9 US graduate schools. 6 of them are among the most prestigious schools, and the remaining 3 schools are Chicago, Rutgers, and Stony Brook. Half of these schools have given out their first wave of...

Homework Statement b) White light travels from crown glass into ethanol. If the angle of incidence in crown glass is 60.00 degrees (not sure how to insert degree sign), what is the angular spread between the red and violet parts of the visible spectrum in the ethanol? Illustrate your...

hello friends, in my course "introductory QM" it says at the end of harmonic oscillator chapter that this may find some applicasions in electromagnetic fields and in crystal physics. now, though i haven't covered solid state physics yet, but still i can...

Homework Statement At 1285*C the equilibrium constant for the reaction Br_2 (g) \Leftrightarrow 2Br (g). A 0.200L vessel containing an equilibrium mixture of the gasses has 0.245g of Br_2(g) in it. What is the mass of Br(g) in the vessel? Homework Equations None The Attempt at a...

Hi, I´m preparing a paper on ARPES and wanted ask what the main applications of ARPES are nowadays? I allready understand that high temperature superconductors are one main region of interest but what else ? Thanks

Just curious, are there any?

Homework Statement 8. (II) A car can decelrate at -4.80 m/s^2 without skidding when coming to rest on a level road. What would its decelration be if the road were inclined at 13 degrees uphill? Assume the same static friction force. Homework Equations Ffr = MuFn F = ma The...

Homework Statement 1. A cylindrical gasoline tank 3 feet in diameter and 4 feet long is carried on hte back of a truck and is used to fuel tractors. The axis of the tank is horizontal. Find the work done in pumping the entire contents of the fuel tank into a tract if the opening on the...

Homework Statement Find the acceleration of the masses based on the figure below. m1 = 1kg m2 = 2kg m3 = 3kg Homework Equations - The Attempt at a Solution I am completely lost, I've tried thinking and thinking over and over again about this problem, wouldn't the...

Hi all I've been reading about Berry's Phase, but none of my litterature has explained, if Berry's Phase can be used to something, i.e. if it has any real applications?

Homework Statement At an airport, you pull a 18-kg suitcase across the floor with a strap that is at 45 degrees above the horizontal. Find the normal force and the tension on the strap, given that the suitcase moves with a constant speed and the coefficient of kinetic friction is 0.38...

Hello everyone, It's that time of the year... Applying for grad school, taking GREs and all that business and honestly I am freaking out. Currently waiting right now to get my PGRE scores back but it's starting to bug me and I could use a bit of persuasion that scores aren't all that. So...

Homework Statement A 1380kg car is moving due east with an initial speed of 27 m/s . after 8.00s the car has slowed down to 17.0 m/s . Find the magnitude and direction of the net force that produces the deceleration Homework Equations Net force of x= MAx Net force of y= MAy The...

First Demonstration Of A Working Invisibility Cloak ScienceDaily (Oct. 19, 2006) — A team led by scientists at Duke University's Pratt School of Engineering has demonstrated the first working "invisibility cloak." The cloak deflects microwave beams so they flow around a "hidden" object inside...

I would like to create some type of physics oriented software as a hobby but I know there is already a lot of software out there. Does anyone have any suggestions as to a simulation of a situation/concept that they thought would be useful but have been unable to find in other software? (at...

hi nerds!i was wondering if somebody would kindly explain to me what game theory is and its applications and uses! i guess it is related to marketing. please give me informations and details. i tried googling and wiki but they diidnt help.

A fisherman is fishing from a bridge and is using a "32.0-N test line." In other words, the line will sustain a maximum force of 32.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in with an acceleration whose magnitude is...

A toboggan slides down a hill and has a constant velocity. The angle of the hill is 8.80 with respect to the horizontal. What is the coefficient of kinetic frction between the surcae of the hill and the toboggan? So i used the formula: sum of forces(x)= cos (8.80)=0.98823 Forces (y)=...

Box 1 is resting on the table with box 2 resting on top of box 1. a massless rope passes over a massless, frictionless pulley. One end of the rope is connected to box and the other end is connected to box 3. The weights of the three boxes are w1=55.0N, W2=25.7N. Determine the mangitude of the...

A supertanker with the mass of 1.72 *10^8 kg is moving with a constant velocity. Its engines generate a forward thrust of 5.52*10^4 N. Determine (a) the magnitude of the resistive force exerted on the tanker by the water and (b) the magnitude of the upward buoyant force exerted on the tanker by...

I know there's PortableApps.com and U3. What other ones are there? What's the best?

I come from India and I intend to apply for undergraduate admissions this year for a physics course [BSc. Physics]. I am preparing for the IIT-JEE, although I know quite well that I am NOT going to be doing engineering; I want to do physics. Inside of India, I know of the choice of applying...

1. In the drawing, the weight of the block on the table is 388 N and that of the hanging block is 175 N. Ignore all frictional effects, and assuming the pulley and the cord to be massless. Find the acceleration of the two blocks as well as the tension in the cord 2. Fnet = mass of the...

Homework Statement At the airport, you pull a 18-kg suitcase across the floor with a strap that is at an angle of 45 deg above the horizontal. Find a) Normal force and b) the tension in the strap, given that the suitcase moves with constant speed and that the coefficient of kinetic...

Homework Statement A speedboat starts from rest and accelerates at +2.01 m/s2 for 6.55 s. At the end of this time, the boat continues for an additional 6.45 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.80 s. Find the total displacement of...

Are the simple uniform rates problems practical for anything other than for applications like inlet and outlet pipes filling or draining a reservoir? The kind I mean are the ones which immediately yield rational equations immediately upon first analysis. We find motion problems, we find...

Homework Statement A current-to-voltage converter The current source has a finite output resistances Rs, and the op-amp has a finite open-loop differential gain Aod. Show that the input resistance is given by Homework Equations Rin = RF/(1+Aod) The Attempt at a Solution Rin = RF...