Application Definition and 945 Threads

Homework Statement I'm working on a particular problem that involves the force on a face of a triangular prism under water. What I am wondering is if someone could explain how to find dA for the prism? If the prism is an equilateral triangle, then dA=\sqrt3dy doesn't it? My book is showing...

hello everyone; is there anyone which can tell me what application was used to create this video... i think this is cool way to illustrate your problem or help someone...i often seek help from my friend who is settled in another country...sometimes i has to attach so many individual...

Homework Statement A passenger in a moving car is thrown forward when the car stops suddenly. Explain why this happens with reference to Newton's First Law. Homework Equations The Attempt at a Solution "An object at rest stays at rest and an object in motion stays in motion...

Book for the application of Calculus in Physics? Hi! I'm just a beginner to the world of Physics. I require some good basic textbook which solely explains the applications of calculus in physics. I am acquainted to an extent to the mathematical domain of calculus, i.e. integration...

As if the unemployment situation isn't bad enough. http://money.cnn.com/2010/06/16/news/economy/unemployed_need_not_apply/index.htm http://www.examiner.com/finance-examiner-in-national/eeoc-jumps-to-help-the-unemployed-as-businesses-tell-them-not-to-apply

Homework Statement problem states that ... there is a u tube and filled with liquid of densities ρ and 2ρ. the base length of the tube is 'l'. now it is accelerated towards right with accl.=a. if the HEIGHT DIFFERENCE AFTER ACCELERATING THE SYSTEM IS '0'. then what was the height difference...

Homework Statement A cylindrical barrel, standing upright on its circular end, contains muddy water. The top of barrel, which has diameter 1 meter, is open. Height of barrel is 1.8 meter and it is filled to a depth of 1.5 meter. Density of water at a depth of h meters below surface is given by...

I'm teaching Calculus and am looking for an example of a first order differential equation application that is reasonably easy to explain in terms of where the equation comes from, but difficult or impossible to solve. I'm trying to show when you would need to use approximation techniques...

hi i would like to ask a question concerning the application of microwave beams. First: a microwave beam can be thought of as a laser beam but the light it emitts is in the frequency range of microwaves (see Maser)... I was wondering why such beams are not used for medical imaging...

I'm currently in the process of designing a golf application. Because of what it is, it needs the following properties:Corrosion resistance, UV resistance, lightweight, and heat resistance although this is not essential as I could use a heat shield, I believe mica would be ideal for this. So...

Homework Statement A pipe comes diagonally down the south wall of a building, making an angle for 45 degrees with the horizontal. Coming into a corner, the pipe turns and continues diagonally down a west facing wall, still making an angle of 45 degrees with the horizontal. What is the angle...

An is a particular set of rules and specifications that a software program can follow to access and make use of the services and resources provided by another particular software program that implements that API. It serves as an interface between different software programs and facilitates...

I begin my "service" in the "corps" on feb 8, wherein I'll be teaching math to secondary students in Iganda. I applied because I wanted to do Peace-corps for its own sake, not even considering how it would look on my resume. But browsing law school forums I got the impression that their...

Since I'm trying to make sense of the application of a concept, I figured I'd post this thread here. If this belongs in the homework forum, I sincerely apologize. For the longest time I would do integral problems in Calculus. I figured I understood how to do them because after I finished...

Hey guys, do you have any idea of mechatronics application in real life ? Maybe in industry, or in our everyday life ? I heard a lot about robots, but I think they are rarely used in our life. I want to make my thesis, and my friends want to make a quadcopter, a wind turbine, a spider...

can anyone give me some suggestions on the applications of diodes to our course? i'm not really familiar with machines that uses diodes. a simple example would be enough and highly appreciated. i'm just a 2nd year college student by the way.

If A 2x2, show that A^-1 = A^T if and only if : http://www.mathhelpforum.com/math-help/attachments/f5/20406d1294835445-exercise-application-markov-chains-untitled.png [Hint: If a^2+b^2=1, then a=cosθ, b= sinθ for some θ. Use cos(θ-)=cosθcosϕ+sinθsinϕ]

I know that Penn State and Georgia State were both free-to-apply several years ago, but they both seem to have put in application fees since then. What about other programs? In addition to Physics/Astronomy, I'm especially interested in interdisciplinary programs that take students from all...

Hello! I am a physics graduate student from Africa and I want to apply for post graduate studies in US universities. However, I facing a problem of application fee everywhere except PennState University which request for application fee when you've been admitted. Does anyone know any other...

hi, I am looking for any example (complete calculus) using Complex Numbers to solve real problems. is the right approach: 1- starting with real variables 2- adding the imagine part 3- calculation... 4- extracting only the real value from the result. ? thx.

I'm having trouble using Stokes' theorem in order to find a simple formula for the area found within a two dimensional simplex. I know the formula, but I'm interested in the derivation. For simplicity, I've been working with a unit triangle with vertices at the coordinates (0,0), (0,1), and...

Homework Statement A car is traveling on a straight road on a stretch that contains cities A, B, C and D. The distance from city A to city D is 60 miles and the cities are evenly placed along the route. There are cell phone towers in each city. Each tower has a range of 10 miles in all...

nvm i got it.

Homework Statement We have the application h: (C[0,1], R) --> (C[0,1], R), defined by h(f(x)) = \[\int_0^x cos(f(t))/2\, dt \] Prove that h is a contraction. Homework Equations Need to prove there exists k, 0<k<1 s.t. sup_(x in [0,1]) \left|\int_0^x (cos(f(t)) - cos(g(t)))/2\, dt...

Homework Statement A sample of two different irons, Fe2+ and Fe3+, are accelerated by the same potential and then sent through the uniform magnetic field of a mass spectrometer. a) Which ion moves faster after being accelerated? Justify your answer by referring to equations used in this lesson...

I am designing a small satellite which uses a magnetometer and some coils (which interact with Earth's magnetic field) to provide attitude control. The strength of the geomagnetic field is 30 uT to 60 uT (according to Wolfram Alpha), and the magnetometer has a resolution of 0.015 uT. The...

My question concerns the affect of the curvature of space on a stationary object. I understand that the force of gravity is more accurately described as space curvature. Ie, a massive object like the sun or Earth can be visualized as a bowling ball placed on a rubber sheet, creating a curvature...

Homework Statement What are the applications of free fall in our daily life? Homework Equations How is it applied?The Attempt at a Solution One example is sky diving,I need to know more. A sky diver must have knowledge on the concept of free fall like what position he/she should be into...

So I have to show that a projection P (i.e a linear operator with P=P²) on a Banach space X is bounded if and only if \ker (P) and P(X) are closed subspaces of X.My idea was to boil it down, using the closed graph theorem. What's left for me now is to show that the graph G(P):=\{(x,y)\in X\times...

Homework Statement Use l'Hospital's Rule when necessary (you may not need to use it at all). Find the limit. lim as x approaches 1 of (x^a-1)/(x^b-1) Homework Equations The Attempt at a Solution Ok well, if you sub in 1 for all the x values you get an indeterminate 0/0 i...

diode and retifier application?? i have a question are diode and rectifiers used in electrical transformers?

find the following: if a particle (s=1/2) is prepared such that it is in the spin up state |f>=|z+> what do the following mean? [<f|(Sz - <z+|Sz|f>1)^2|f>]^½ and [<f|(Sx - <f|Sx|f>1)^2|f>]^½ The middle term sandwiched between the states is squared and the whole term being square...

Case in example: If a motorbike is being riden down a steep hill and out of gear with no brakes applied; would this be more unstable than if the bike were in-gear using engine braking? (Above condition being at the same speeds).

sorry folks i don't even have an idea to this question`s solution so i hope u people may like to help me. i`m stuck to it since last week nd i hope its from partial derivative... please suggest me a book or a hint or the solution. Let a long circular cylinder of unit radius be placed in a large...

I am desperately in search of a book titled " Lasers theory and application" authored by Ajay Ghatak. I will be grateful if someone kindly provides me the soft copy of the book or atleast provide me a source to obtain the same.

I have a function for velocity, V in terms of position, x. The equation is of the form V(x) = a*x2+b*x+c. Initial conditions are x=0, t=0. How do I change from V(x) to V(t)? It seems this would be an application of the chain rule, dy/dx = dy/du * du/dx, but I'm struggling to adapt it to...

So I'm about to apply to grad schools in physics and applied math, but had a few questions about what to say in my application. I got my undergrad degrees in them last December, but took some engineering classes (in mechanical/aerospace engineering) the following semester, and have done some...

I got a job as an Application Engineer HVAC.My duties include assisting the sales team,preparing tenders and conducting selection of AHU's.Please tell me the steps i have to take inorder to become an HVAC design Engineer.

I've never had a job before and I'm applying to Fred Meyer online; problem is, I don't know which positions I should apply for, so here's a list: Apparrel/Shoe clerk Bakery Clerk Cashier Coffee Barista Courtesy Clerk Deli Clerk Food/produce Clerk Grocery Clerk Health/Beauty Aid Clerk...

Ex 36, p 147. Let f be a function from the set A to the Set B. Let S and T be the subset of A. Show that b) f(S \cap T) \subseteq f(S) \cap f(T). Thanks.

Hello again, I have a little dilemma that I have spent a lot of time thinking about, and I was hoping someone here could help me out, it would be very kind of you to do so. During the last UCAS application process I got accepted to an undergrad programme in Physics at Heriot-Watt...

Homework Statement To move a large crate across a rough floor, you push on it with a force F at an angle of theta=21.0 degrees below the horizontal. Find the force necessary to start the crate moving, given that the mass of the crate is 32.0 kg and the coefficient of static friction between...

Homework Statement The plates of a large area parallel plate capacitor of area A are separated by a short distance. The plates carry an equal but opposite charge \pm q. (a) What is the electric field strength E(q,A) inside the capacitor? (b) By how many percent does the electric field...

Homework Statement There's a question that i tried to solve in a "Newtonian way",but i could only solve it using the concept of energy: supposing that the human bone only tolarates a force of 48.000 N without braking.Calculate the maximum hight H from where a man could jump and the bone...

Right now I am applying to approximately 20 PhD programs while having to work a full time job and I think I am going to die. I constantly find myself having to spend hours and hours on websites digging through schools' websites to find information that is buried on how to apply, deadlines, etc...

Can one say a body which has the conditions above mentioned be in thermal equilibrium? How does one apply the definition of temperature equilibrium to this situation? (Physically I think it's possible for a body to be in this situation if some part of it receives heat from the outside and...

Homework Statement find tan(theta) if sin (theta/2) = 3/5 Homework Equations sin(theta/2) = sqrt[(1-cosx)/2] The Attempt at a Solution my attempt: first since we know the half angle formula for sin, let sqrt[(1-cosx)/2] = 3/5 simplifying the...

I'm interested in applying to a top mathematics grad. school like Harvard, Chicago, or Princeton. I'm wondering what my chances are and I'm especially interested in what would happen in the following scenario: I've taken only math courses my entired undergrad. education and I've taken grad...

Homework Statement vector A = 1.5i + 6.7j - 7.4k vector B= -8.2i + 6.5j + 2.3k (f) What is the magnitude of the component of vector A perpendicular to the direction of vector B but in the plane of vector A and B. The Attempt at a Solution This part of the problem has me kinda...

Homework Statement A farmer is planning to build six adjoining rectangular pens of equal size to house his hens, as shown in the diagram. He only has 180m of fencing, however, and he wants to make the pens as large as possible. Find the maximum area he could make each pen. The diagram is...