Choice Definition and 667 Threads

Ok guys, I've got a few multiple choice questions I'm having trouble with... 1. If the current increases in a solenoid, the induced emf acts to... A. increase the flux B. decrease the flux C. either increase or decrease the flux D. have no affect of the flux ----I'm thinking B...

Math - Career Choice?? Hi, I was wondering if the mathematicans on the forums could help me out with my choices for the next few years?? (i am going to speak to my undergrad counciler in a few weeks).. I am starting 3rd year Math (CORE programme) in September. I am also Minoring in...

Hi! I'm a high school student and I've been interested in Logic for some time... Although I read some books and acquired some knowledge, I still have one question that remains unanswered in spite of my hard work... My tutor told me that the three axioms of Propositional Logic (see them for...

Ok guys, I’ve got a few multiple choice questions I need help with. Here they are, and thank you in advance! All I know for this one is……Ql/Qh = Tl / Th Leaning towards B. 1. In a Carnot cycle A. Qh > Ql * Th/Tl B. Qh = Ql * Th/Tl C. Qh < Ql * Tl/Th D. Qh = Ql * Tl/Th We are able...

i have a few question, that i hope they will answered. 1) let w={0,1...,n,..}={0}UN, and let f:wxw->w such that the next requirements apply: a) f(0,n)=n+1 b) f(m+1,0)=f(m,1) c) f(m+1,n+1)=f(m,f(m+1,n). i need to prove that for every n,m in w, the next statement applies: f(m,n)<f(m,n+1)...

Hi, I'm going into the Joint Honours Program in Mathematics and Physics @ McGill next session... I'm seeking for help on what course to take... (also how to take them...using minerva?) I'm new to all that university stuff... not too shure how it works... here is the list of class...

http://www.joot.com/dave/writings/articles/entanglement/spookiness.shtml http://www.joot.com/dave/writings/articles/entanglement/quantum-eraser.png 1. a laser fires photons into a Beta Barium Borate (BBO) crystal; 2. the crystal entangles some of the photons; and then 3. entangled...

I was wondering: what is the proof idea behind results such as: (Every vector space has a basis) iff AoC (All bases for a vector space have the same cardinality) iff AoC (Every field has an algebraic closure) iff AoC One direction is obvious, but I have no idea how to begin the other...

i find the study of cosmology very fascinating and now contemplating to study it. But is it a wise choice? I mean, how practical is cosmology in everyday life? not that i really need it to be, I'm more than satisfied to have answers I've always been pondering about. and is employment hard...

Hi I've recently got offers for chemical engineering in Manchester university and for chemistry at university of Warwick. I've got a dilemma situation; I don't which of these university I have preference to. Although in terms of ranking in the recent 'times university guide', Manchester...

I was wondering if you could guide me in my choice of material in one of my projects. I must design a robot capable of being very cost efficient, light, and durable. What material is best suited for this? It's difficult to research this sort of information on the internet, due to such a high...

If you had the choice (ignoring the financial side of the scenario) to attend either MIT, Princeton, or Rose-Hulman Institute of Technology for physics with an emphasis on engineering (undergraduate), where would you go and why? Also, If you knew you could go to a prestigous (but not as...

String theory is touted as bridging the gap between general relativity and quantum mechanics, so I'm presuming it can explain everything in QM. How does string theory explain the results of the two slit experiment and the delayed-choice experiment? (pop science reader's answer, if...

In double-slit experiment one can observe either an interference pattern or which-path information, but never both. Spontaneous parametric down conversion (SPDC) is used in the recent experiments to create entangled pairs of photons. One of them is used to observe the interference pattern...

I have these ideas about these things and I would like your opinion. You may not agree, but it is what I think. First, I would like to say that Fate/Destiny and Causality are linked. To me, fate predestines things and people, which is why people or outside infulences of a person control...

What are some possible criteria when to choose Mealy or Moore state machine? I know that for Mealy, output is a function of present state and input and in Moore it's just present state. I know it also probably depends on the design specifications, but ... just wondering. Any insights are...

I am a High School Senior in Advanced Physics Topics class. We have recently deiscussed the basic double slit experiments and ways of quntum erasing and delaying choices, and how those situation affect the outcome of the screen whether it will show an interference pattern or not. We then...

Your Zombie Slaying Weapon Of Choice... So what weapon would you prefer to be using when the world is over run and you must slay zombies to survive?:biggrin:

In times of turmoil, against the enemy most loathed, what would be your weapon of choice?

hey, I'm currently in grade 12, and so far we just started a review over the conservation laws unit, which includes (energy related theorm, work, power, momentum, collisions, mechanical energy ect.) Anyways I can't seem to figure out these two multiple choice theory questions, was hoping...

Can anybody help me on this question, I'm stuck. I have a picture attached for clarification. Consider two concentric spherical conducting shells. O is at the center of the shells. THe inner shell has radius a and charge q1 on it, while the outer shell has radius b=3a and charge q2 on it...

Hi everyone, i am actually studying Physics in a French University (University Paris 6 Pierre and Marie Curie), i have completed my first year and i am now going on my 2nd. For my 3rd year (year 2006/2007), I would like to participate in an exchange programm that my university has with a few...

I will begin physics grad school this fall. I am pretty well decided on studying condensed matter theory. But, within CM theory, I'm not sure which area I should choose. On one hand, there are three professors at my school who mainly use field theory to solve many body problems. Ideally...

Hey I was wondering... I have been thinking about the various career options before me and I have thought a lot about engineering. I know that the work I would be doing sounds cool at least how it's been described. Yet I want to know somethings before I go further... 1. What aptitudes do...

Amateur level. Does the delayed-choice double slit experiment violate or put in trouble the standard cause-and-effect thinking?

Hello there, The tests for university is fast approaching, but I cannot make my mind up which way to go. Even now, I study calculus and some physics, and each time I start studying I feel awestruck, I totally adore natural sciences. But there remains a problem. Here in Turkey, being a scientist...

1. Consider a stoppered flask containing benzene, iodine, and air, which has reached equilibrium at 298K. Which one of the following statements converning the system at equilibrium is true? a) The pressure of the vapour phase is not constant b) Evaporation of the liquid continues. c) The...

If |X| = n > 0, there are 1C1nC12C1nC2...nC1nCn many choice functions from (power set of X minus empty set) P(X)\{{}} to X? Just curious. I'm jumping ahead a bit, but that makes sense to me. Is it correct? Is it much more difficult to understand when X is infinite?

Is the existence of basis in all vector space equivalent to the axiom of choice?

I am really confused about this subject matter, as a matter of fact, anything having to do with axioms. For instance, If X={1,2,3} How do I find at least three different choice function c:P(X)--->X? Is the number of different choice functions in {c:P(X)--->X} 7 since it is without...

If f X---> Y is a function and if there is exactly one function g:Y---> X so that f o g = id_y, the f is a bijection and g=f^-1. Do I need to use the axiom of choice to prove this theorem?

hi everyone, i am a junior nuclear engineer at A&M. After taking engineer classes, i feel engineering only focus on specific problems, and doesn't make me understand the subject clearly and deeply as Physics does. Furthermore i like theoretical works than design reactors and so on. I am not...

Hi guys, I need help with the following problem I couldn't figure out: 1) A block of mass 2 kg slides along a horizontal tabletop. A horizontal applied force of 12 N and a vertical applied force of 15 N act on the block. If the coefficient of kinetic friction between the block and the table...

Two balls of masses m1 and m2 are moving along x-axis w/ velocities, v1>v2>0. After transforming from the lab frame to the center-of-mass frame, what are the velocities of m1, v1com, and mass m2, v2com? Vcom is the center of mass velocity for the system of both balls. The choices are...

My brain is in great pain from reading Greene's 'Fabric o/t Cosmos'. I'm currently on p.197 (Chapter 7: Time and the Quantum - Shaping the Past). He's got the delayed choice setup rigged so that photons with 'which-path' info and no 'which-path' info are hitting the same screen. He says that...

Dear All I have to select any five courses from the following list in my MS computer engineering. Actually I'm interested in audio and related MP3/DVD/Digital TV and video stuff. Can u guys help me in choosing the right courses. 1) Advanced digital signal processing 2) Digital image...

In Europe, a woman was near death from a special kind of cancer. There was one drug that the doctors thought might save her. It was a form of radium that a druggist in the same town had recently discovered. the drug was expensive to make, but the druggist was charging ten times what the drug...

Multiple Choice Questions ( NEED HELP! ) Q. The bright and dark bands you see in a photograph of a double slit interference pattern represent which of the following? a. The respective positions of the crests and troughs of the light wave. b. An interference pattern that is not present...

Some time ago I read some stuff about delayed choice and quantum eraser experiments, but rather than reading the articles thorouhgly, I just glanced at them quickly, picked up a few ideas, and then tried to design a gedanken experiment of my own. Now I seem to have run into a bit of a problem...

we had the following test question last week in my physics class: A rocket is launched at an angle of 7.5 degrees and reaches a maximum height of H. To make the rocket reach 2*H what needs to be done. a) double the launch angle and initial velocity b) half the range there were two...

I have this question and for some reason I think that none of the answers are correct It says: If a cell takes 5 minutes to complete the mitotic phase of the cell cycle then it will spen approximately __ is interphase? a) 5 min b) 1 min c)3 hours d)20 seconds I think the answer...

Knowing the danger of terrorism, if you were an Iraqi living in Baghdad, would you vote in the upcoming election?

I am enrolled in the University of Florida and I am currently on the fence about what to study. I'm positive I want to study engineering, but I cannot decide between chemical engineering and materials engineering. The Chemical Engineering program here is I believe good but I don't think it is...

I have been contemplating this experiment for quite some time now, and I have some questions. http://xxx.lanl.gov/PS_cache/quant-ph/pdf/9903/9903047.pdf is a preliminary copy of the paper describing the experiment, for reference. The first and most obvious question would be whether it is...

Help please--multiple choice Two identical blocks are lifted at constant velocity by ropes that run over frictionless pulleys, as shown in the diagram. Block B is raised twice as fast as Block A. The magnitudes of the forces are respectively FA and FB, while the power supplied is respectively...

Physics Questions (mult choice!) These questions confuse me: 1. A heat engine operates in a Carnot cycle b/w two reservoirs, a hot reservoir at temperature T(h) and a cold reservoir at T(c). The efficiency of the engine is 50%. The temperature of the hot reservoir is increased to 2T(h). The...

Right now I am a Junior in high school, and have a very special interest in physics, ranging from all different kinds of fields of applications, simply put I endulge in everything that can make my mind race with thought and questions. Now I've made a few mistakes in my high school experience...

While researching the concept of symmetry, I stumbled upon this: There is a paradox of medieval logic concerning the dilemma of an ass who is placed equidistantly from two piles of food of equal size and quality. A perfectly symmetrical situation. If the behavior of the ass is completely...

Is anyone familiar with the Basic STAMP 2 microcontoller? I have found a little information about it, but not much. I would like to start tinkering around with some type of microcontroller, probably something to run stepper motors. Would this be a good choice? Specifically, I am thinking...

the break-even point in sales for Rice Company is $360000, and the company's contribution margin ratio is 20%. Its income tax rate is 40%. If Rice Company desires an after-tax profit of $84000, what would the total sales have to be? PLZ HELP ME! A)1050360 B)1060000 C)780000 D)Cannot be...