Application Definition and 945 Threads

Hey, I have no idea where to start, for this question. I know that I will probably have to use vector and scalar product and use the trig identity tan^2(theta)=sec^2(theta)-1. Question: In order to determine the angle theta which a sloping plane ceiling makes with the horizontal floor...

A problem which I'm sure is rather simple, however I cannot seem to simplify the equation properly to produce the fully simplified answer as written in my textbook. The problem being. f(x)= e^{4x}{(1-2x)}^4 Find f ' (X) All help is greately appreciated!

Is it fair to say combinations are just an application of the counting principle? I already understand that permutations are just an application of fundamental principle and that combinations are just an application of permutations. If it's fair to say that combinations are in fact, just an...

can anybody tell with equation,the practical applications of partial differential equation and ordinary differential equation. If it is in mechanical engineering statics etc will be helpful

A flat square sheet of thin aluminum foil, 25 cm on a side, carries a uniformly distributed -36 nC charge. What is the approximate electric field at the following positions? a.)0.01m above surface? b.) 20m above the sheet? For a.), I used E=chargedensity/(2)epsilon. From my...

I am trying to detemine the moment of interia of an object, not too accurately. I have the object mounted in bearings, and on the shaft of the object I have a ring (radius of 2.5in) which I have a filament wrapped around which drops to a weight of 5lbs (mass of .1554 slug). I can release...

Given a function f(t) = (2t-1) / (t^2-t+0.5) max supported species = 120, and t is the time. if 75 animals are introduced into te refuge the population changes at a rate of f(t) What needs to be done to obtain a ) Find when the population will be a minimum and to find b) When the rate of...

I just did a semiconductors experiment involving the Hall effect and a doped germanium sample. The type of doping was determined from the Hall voltage using the sign of the recorded voltage and the sign of the bias current applied across the sample. Now, my question is what could be a...

I am stuck on this one. I apprciate your help greatly. A cyllindrical shape of radius 7cm and length 240 cm has its charge uniformly distributed on its curved surface.The magnitude of the electric field at a point 19cm radially outward from its axis (measure from the mid point of the shell)...

A saw a site in a previous topic that listed grad school application reception dates and status, and was wondering: Is there a site that has a list of grad schools, and lists individual applications and their grades/gre scores, sex and race and whether they were accepted or not? I think...

I have to use Cauchy's Double Series Theorem and the following equation, 1/(1-z)^2= 1 + 2z + 3z^2 + 4z^3 + 5z^4+... to prove that z/(1+z) - 2z^2/(1 + z^2) + 3z^3/(1+z^3)-+...= z/(1+z)^2 - z^2/(1+z^2)^2 + z^3/(1+z^3)^2-+... Any hints on how to start? Note, |z|<1 (I am not...

Hi i need advices from you nice PPl out here.My Bro has just graduated in geography honours and he is confused for his next carrier step.Well i want to tell you more about him to bring the picture clear in the mind.My bro is the president of his college and is the most powerful student of his...

Hi! I'd a look at complex numbers and can't understand how they can be applied to "the real world". Can anyone give me some concrete examples, please. Or a site that does. Danne

A little coursework question. In one of my sources, of research it says that "Graphite has a theoretical specific capacity of 372mAh/g, much higher than most other electrode materials that have proven their worth in the battery industry." I'm not sure if mAh/g is a measure of current vs...

My book have a really crappy proof of how log a^x = x log a can be true. Can someone help me? Another question deals with an application of it which made me really confused: Factorise (4a^3) - (29 a^2) + 47a - 10 then solve (4*4^3x) - (29*4^2x) + 47*4^x - 10 = 0 I see...

I have to measure the enthalpy change for the reaction: CuSO4(s) + 5H2O --> CuSO4 · 5H2O I have to use the hess law since the above reaction is slow. CuSO4 · 5H2O + H2O --> CuSO4 + H2O (1) solid CuSO4 + H2O --> CuSO4 (2) The techer said the...

does anyone know what the current balance can be used for..ie. a practical application of the current balance?

A question for PhD applicants, present and former: How significant are grades? And what grades are significant?

i was wandering if there is like a math program/application that can help me with math problems like homework and all. i need something that can solve a problem for me or help me step by step? any ideas thanks a bunch!

PLEASE HELP! Does anyone know the use of the 7th derivative of a position function? I know the first is velocity and the second acceleration, and the third is jerk. But what is the real work application for the 7th derivative.

Find two positive numbers that satisfy the given requirements. The Product is 192 and the sum is a minimum. I said that x*y=192 and y=192/x and that dy/dx= -192/x^2 I thought that we were supposed to set the derivitive equal to zero in order to find the local extrema... however...

Hi everyone! Despite I have not too much knowledge of ODE's I'm trying to implement a more or less general 3D physics simulator. By now, the simulator (only kinematics and simple rotations of a body rigid, at the moment) works with euler integrator but I'd like to move to some more...

Application of Calculus to Finance I am a finance executive . How do we apply differential Calculus and integral calculus to : Financial forecasts life periods of assets fixation of standards applying various external & internal parameters...

Hello everyone, I am having some difficulty with the following problem about bernoullis principle: THe problem says that the level of liquid h = y_2 - y_1 drops at a rate \frac{dh}{dt} = -\sqrt\frac{2gh{A_1}^2}{{A_2}^2-{A_1}^2} where A_1 and A_2 are the areas of the opening (water...

I was given the following problem to solve (diagram is attached): I have tried all sorts of mixes of the trigonometric functions to solve this problem, but the closest I can get is where all the terms cancel out. Could someone possibly give me a hint as to how to start this problem, as I'm...

I work in a restauant and use KOH and NaOH as degreasers. Will these damage our septic system if I put them down the drain? Would it be better to send them to the landfill? Is one less harmful to the environment than the other? Personally I use them as spareingly as possible but I know...

I'm searching informations about the Gauge simmetries and their application in physics; where can i search in internet and where on books? thanks for answers

can anybody explain to me how relay and solanoid work in a simplest way ? I got a few sources that explain about these two things but they confused me a little bit... Thanks

Hi there, I am having a bit of difficulty with this problem dealing with a little more difficult application of Couloumbs Law. A large electroscope has two wires that are 75-cm long w/22g balls at the ends. When charged, all the charge resides on the balls (Q/2 for each ball) If the wires...

Setting the Stage: A uniform sphere has a mass of 100 kilograms and a radius of 10 meters. It is located at [0,0,0] It is in static equilibrium. We are in constant time. We are in a vacuum, there is no gravity, friction, or any other forces to act upon our sphere. We are using a...

how are quantum theories applied to everyday life? in the physical, biological and chemical systems? like how does quantum theory explains the existence of parallel realities or universe?

My wife is a nurse in an intensive care unit. Last year, she suffered a back injury, and has gradually returned to almost full duty. (She has lifting and carrying restrictions placed on her by her physician, limiting the amount of weight she can lift and carry.) A few days ago, she was trying to...

Any thoughts besides dual spring or electrical systems?

hey guys! i need some help, a big help. this is urgent... can somebodyhelp me solve this problem: what force, applied parallel to the plane, is necessary to move a 16 kg object up africtionless palne with a uniform acceleration of 2.0 m/s2 if the plane makes an angle of 60 degrees with the...

what can be the output beam diameter for microchip PULSED laser in underwater lidar application?

Hi, I'm seeking for a software, witch will alow me to easily draw Feynman diagrams. I have currently found: FeynMF: LaTeX package. Not very nice to use, but very good quality diagrams FeynmanDraw: Very primitive WIN software. Not fine diagrams. FeynDiagram: C++ source for drawing...

Shahil said, This brings me to something i had been meaning to say, I think robert tracinski pointed it out best when he said, "So it would seem that the system that enforces virtue leads to poverty—while the system that encourages vice leads to prosperity." Meaning that although...

I have made an small application of a railgun. It looks simple but I don't get its principle involved here. On a cardboard, two strips of aluminum foils are pasted qith an equal distance apart from each other, resembling a train's path. A pair of alligator clips, both ends have 'head', in...

I have a multi component system, containing rotation of several linked elements, along with a linked rolling (w/friction) element, a beam element and GRAVITY. What I am trying to do is verify results for varriables calculated manually from constants and experimental data... does anyone know of...

I have a multi component system, containing rotation of several linked elements, along with a linked rolling (w/friction) element, a beam element and GRAVITY. What I am trying to do is verify results for varriables calculated manually from constants and experimental data... does anyone know of...

What is the true use of Differential Equations?

Hello again! I'm not sure if this is difficult but I believe that everyone have experienced this... I can't explain it... =) Sorry about that. Anyway, here's my problem... At noon, when the sand in the beach is already hot, why does the water still feel cold? Early in the night...

What exactly is artificial intelligence, what are some of its practical applications, and have we created it yet? Please no arguments that humans are not intelligent! If it comes to that then this thread is useless.

Do you know what the force Acsimet is ? Yes, certainly. Do you know Where the point of application of that force ? Yes, I think. But I don't :-(. Can you show me and explain your answer for me ? You can say it's the centre of gravity of the object... but WHY ? Thank you !

I'm looking for some software that will allow me look at equipotential electric field lines for various structures in two dimensions. Any thoughts? I remember I ran into a good looking utility when I was researching antenna design, but now I can't find it...