Practical Definition and 308 Threads

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...

ok I want to clear my broad views upon calculus.. first of all I wuz taught calculus 2-3 years back with differentials and Integration.. and ever since iam not really interested in doing this because I want to know wot iam doing ? I want to know how do they occur naturally ? I mean like i...

1. Hello. I am doing a practical assignment which involves a pully system with different masses on each side attached to a string. I have figured out acceleration via a = 2x/t^2 and then Force applied by F = (.42-.38)*0.286 which gives me 0.011N. However when I graph the final solution (I have...

I'm doing a practical for Physics and writing a report on it so I chose Planck's constant. I know that one of the variables I can change could be the frequency of the oscillating waves but my teacher says that you should consider two variables if you want to do well. I don't know what other...

This is a relatively simple, practical question to a backyard delima. A friend has purchased a van with a receive hitch mounted on the rear frame. The receiver toungue has been installed upside down, too low, and has rusted in place. It can't be pulled out and the suggestion has been...

If I was doing a practical on refraction, and I was using Snell's Law, what would the Aim be. Also remember that, the aim can't be to prove Snell's Law. Thanks everyone. (please hurry this assignment is due tomorrow)

OK, Strange question, but I have a very practical, if simple, need to apply the Law. I need to heat a copper wire to several hundred degrees and I am trying to figure out a rough voltage and amperage to push through it. I am staring at...

Hi, I'm Ben. I was wondering if there are any practical, profitable areas where studying Artificial Intelligence would be appropriate. From what I've heard, AI is mainly grounded in theoretical computer science, which is the most interesting aspect of it. But in regards to what is in demand...

im supposed to write a little discussion on mechanical damping practical use...can anyone give me a proper website or note in the internet.....

I am trying to get some intuition for Eigenvalues/Eigenvectors. One real-life application appears to be a representation of resonance. What are some practical uses for Eigenvalues? What other things may Eigenvalues represent?

Hello, I am a first time poster and this post will be long, but I wanted to make clear my understanding of superposition so that you can all correct me. Thanks for your patience/interest. I am not a physicist but a critical theorist working with Bohr's complementarity. I thought I...

This should be an easy question, but I can't think of how to answer it! I never did take enough stats. I'm looking at n = 77 returned surveys which come from a population of size 627. (At the moment I'm assuming that response is uncorrelated with the answers; it's actually somewhat...

GHz ac frequency- Maximum "Practical" generation - Solenoid question for the experts. It's me again. Big ideas, big questions. (A quick special thanks to everyone who has ever taken a moment to answer my questions: (Bob S, bipolar, Phrak, f95toli, jambaugh, waht, Pumblechook, ZapperZ...

Just a quick question from a potential mech. engineering student. I'm probably going to start soon on my formal MechE classes soon but I know that to be a good engineer, you need to do more than get good grades. I've asked a lot of working MechEs about what you need to know, specifically if...

Hi folks, I'm a lay person so my depth of knowledge may not be the best. Apologies in advance if I come across a little uncouth! Off the top of my head, I can only think of the various space programs (keeping sattelites spaceborne etc.) and the GPS system as fields of endeavour where...

This is a question that got me thinking, but no further! Hence why I ask it here: Does anyone know of any mathematics that DOESN'T have practical applications? By practical I mean physical, real world applications.

Mechanics & physics,can anyone please explain the scenarios?Very practical Questions? Hi...Can anyone please be kind enough to help me? i know it will take a bit longer for u to answer. I have some scenarios and questions in the following pages...

Hi, Could somebody please explain to me how you can calculate the effects of gravity in general relativity in a practical way? (Or point me to a site where these things are explained in an understandable way) I keep trying to read articles and courses about it, but whenever it gets...

Today, I read a short essay from a magazine about how to preserve the coffee as hot as possible in a short time (if you don't want to drink it right away) by adding the cream into it as soon as possible. It reads: if you add the cream soon, some amount of heat being transferred to the cream so...

Hi Guys, First post here. I'm in a debate with my friend who happens to be a climbing buddy. Dynamic ropes for climbing & abseiling come in two standard sizes, 50 and 60 Meters. The point being debated is weather or not the 60 meter rope has to be stronger than it's 50 meter counterpart...

hi, I want to know the practical use of Integration and Differentiation. I know what it is. I just want to know how can i explain it with a practical example. example : for Differentiation - the dy/dx can be explained that y is dependent on independent variable x. How can d2y/dx2 be...

Homework Statement Hi, I have a practical to do soon, it's only a basic thing because we've only been doing physics for just over a month - plotting a stress-strain graph for an elastic band... 2. The attempt at a solution Now, I was just going to measure the original length of...

Use with good judgement. :smile: http://www.obamacondoms.com/

Given the recent discussion/demonstrations of sailing downwind faster than the wind I was wondering if anyone has some ideas about the limits (either theoretical or practical) of sailing upwind. I was thinking in particular of a turbine driven vehicle going directly into the wind but I'd also...

https://www.youtube.com/watch?v=1nGlFxpgaw4 http://canadianpress.google.com/article/ALeqM5idPXM6GDkOzIX-_At5WVYrBoJ6JQ

Homework Statement Suppose C(r) is the total cost of paying off a car loan borrowed at an annual interest rate of r%. What are the units of C '(r)? What are the units of C'(r)? What is its sign? Homework Equations C'(r)=dC/dr The Attempt at a Solution So, I figured: C'(r) =...

Dear all I am searching the materials that is related with practical problems. Particularly differentiation and integration equations How does one get into solve to use this equations... Also what are the applications,results how much accuracy with practical ...etc Practical books or...

Hi, I am a business administration major at a liberal arts private college in Missouri. I am less than a year from graduation and want to go into an engineering management masters program after this. It was extremely tough to find a program that would accept a non-technical major but I managed...

Hey everyone I'm a physics student doing my last year of high school in Australia. For an assessment task I have to do a practical investigation on electric motors and generators but I am a bit lost on this subject. I need a few ideas that are easy to understand and prove/disprove using a...

arXiv:0809.1084 [pdf] Title: Practical cosmology and cosmological physics Authors: Yu. Baryshev (1), I. Taganov (2), P. Teerikorpi (3) ((1)Astron. Inst. St.-Petersburg Univ., (2)Russ. Geograph. Soc., (3)Tuorla Obs. Turku Univ.) Comments: 16 pages, summary of the conference "Problems...

I am currently a college student who just started taking my first number theory course this week, and with all the stuff I am learning my only question is... are there practical applications to number theory? I mean there are many theories in physics yet many of those have been put to...

As part of my A2 advancing physics coursework i must decide on a pratical and plan and carry it out then write it up. Sounded easy at first but i cannot think of anything that would be interesting and easy to get decent results from. Any ideas or suggestions would be really appreciated...

I don't think there's a thread directly on point here but if so my apologies in advance. I'm an ex-computer scientist and so I thought it'd be interesting to discuss what would go into a computer simulation of the universe. More specifically, I'm wondering if the things about quantum...

What are some ways that breakthroughs in quantum mechanics have been applied to real world applications?

So i have a few questions in relation to a practical completed in grade 11 Physics The basic experiment about the 2nd law, in which a hanging weight is used to accelerate a cart the practical also had a 2nd part in which weights were added to the small cart to decrease the acceleration while...

Hi, I'm going into a school for a day to help out with a science week and I've been asked to talk about mobile phones and electromagnetic radiation. The age range is 14-16 and its UK GCSE level. I'm trying to get ideas for practicals or interesting demonstrations to give, so far I've...

Give one practical application of quantum mechanics and write about it in 4 to 5 sentences.

Hi, I did a practical today in class, and I got curious and did another setup of my own [Setup 2 in the attached diagram], and I have a question about the voltmeter. As attached, when I did Setup 1 and Setup 2, the reading on the voltmeter for Setup 2 was quite higher. Why would this be? I...

I'm only taken twelve hours of classes next semester and I want to focus on both astrophysics topics and a topic in condensed matter.

wts the practical importance of inductance in dc and ac working? application of ideal current and voltage sources(dint know dey had specific applications till the time i saw dis question in a college paper...i thought dey were just theoretical...)? how does an ammeter measure the rms value...

Hi folks, This is my first post. It is a problem in a manufacturing process and I am hoping to find some information and a solution. I manufacture high voltage pinhole detection systems use in the manufacture of plastic products. At the moment we have a system in place testing...

Homework Statement a population P(t) is modeled by the equation dP/dt = 0.0004P(P-150), Find a formula which gives the population, P(t), at a general time t. Homework Equations The Attempt at a Solution swapping over dt=1/0.004P(P-150) dP then i integrate both sides dt...

Dear all, I need clarification regarding torsion angle. In textbook torsion angle is explaining that one end is rigidly fixed another end is giving load.In this we can visualize theta where as practical application motor coupled with line(transmitting lengthy shaft)shaft i cannot visualize...

Has anyone had any experience in using a laser system for measuring distance or location? I am looking for the laser emitter as well as the receiver as kind of like a matched pair. I haven't really been able to find anything other than laser emitters on their own, and wanted to know if...

I have been working on carrying out a reaction in which i get zinc to oxidize creating fire and smoke. Does anyone have any ideas as to how this reaction can be useflul to society.. i want to show that even a weird little experiment like this really could have an effect on the world. For one...

Homework Statement A simple eigenvector problem using a 2x2 matrix. Homework Equations Ax = \lambda x The Attempt at a Solution I don't have one. I know and understand the theory behind eigenvectors, but I cannot think of a practical application. I need to create a problem that uses...

If logic levels of two chips do not match up, say a CPU at 3 volts and a peripheral at 5V, you will need to translate voltages. I want to do this for a serial interface, but I don't know if the translator will ruin my data. The serial signal is in the hundreds of MHz. The only thing to tell...

Hello, Lately i have came across an interesting article. Currently i am interested in synthesizing a long wavelength (3Hrtz, 9 Hertz or 12.5 Hertz) at a strong power. The transmitter circuit can be of low voltage which will later on be converted by a multiplayer to a strong signal (which is...

I was just wondering since I discussed this with some people before, but exactly how likely is it that wormholes in space-time are possible to use for transportation methods or some other form of practical use? One thing I heard as a most likely problem with it is the fact that the massive force...

Excuse me, since the question could be misplaced to this board while a better forum board might fit: Why is Geometry in High School, the college preparatory course, important for any PRACTICAL puposes, when Intermediate Algebra, Trig+Math Analysis, and Statistics seem so much more practical...