Hard Definition and 1000 Threads

I am a nontraditional applicant with a bachelor's degree in neuroscience. I am almost finished a master's degree in chemical engineering, but many jobs that I wish to apply to have a "bachelor's of engineering" as a requirement. And a master's as only a "preference." Would these companies still...

Dr. Courtney mentioned in another thread about studying "smart" and hard when he was getting his 3.8-4.0 GPA as an undergrad. The way he said "smart" peaked my interest and I wish there was more expansion of that in the thread, but it kind of went off the deep end of anti-constructive. So I...

Also is it better than doing research with professor in school? If you had to choose

The problem I want to solve the following inequality: $$ x+\frac{1}{x}<1 $$ The attempt ## x+\frac{1}{x}<1 \\ x+\frac{1}{x}-1<0 \\ \frac{x^2}{x}+\frac{1}{x}-\frac{x}{x}<0 \\ \frac{x^2-x+1}{x}<0 ## ## x \neq 0 ## I tried to factor the numerator to examine the polynomial with a character table...

Hey I'm new to this and I'm just wondering about physics in university. I know this has been asked a lot so I apologize to anyone who's thinking not this again. I'm 17 and in a couple of months I'll be applying to different colleges and I'm just wondering how hard a physics course actually is...

I understand mild steel is very bad at out gassing so is never usually considered for hard vacuum applications. But if the decision was constrained by other factors would it be possible to apply a surface treatment or coating to the internal walls of the vessel - am I correct in assuming that as...

I wonder, could they be employed in hard SF, if yes, how? If one intends to capture a planet (example: Mars with a few cities, capital on south pole) the defenders only doomed if big ships can reach low orbit and burn them with lasers. Big surface lasers can easily outpower even the biggest...

Hi guys, my name is ferdinand. I'm curious about HSAB, especially to predict where the reaction goes. Exp: HI + NaF >>> HF + NaI H is hard acid I IS soft base Na is hard acid F is hard base, and HF Is hard.hard NaI Is hard soft. The reaction will goes to right or left? And why? And since hard...

Is the no. of electrons on a brand new unused and untested harddisk is different from no. of electrons on a used hard disk completely filled with data. i mean will there be even a change of one electron? Please consider the following points before answering: 1- Does all the electrons from a...

Do you have very hard problems about work? I referred to my algebra book and googled in vain. Not talking about the product of the force magnitude and the displacement magnitude. This is what I’m talking about – Jennifer takes 4 hours to do a job. John takes 6 hours to do the same job. Working...

sup guys im currently year 2 studying electrical & electronic engineering. Next year we had to choose modules where it was split equally between magnetics(mainly covered with waves, optoelectronıcs, nano technology and like magnetic materials etc), power(renewable, machine power, a bit of...

Homework Statement Please tell me how to solve the below integral ##\int \frac{(1+x^2)}{(1-x^2)\sqrt{1+x^4}}dx## Homework EquationsThe Attempt at a Solution This is beyond my imagination so, believe me or not, I can't attempt anything! Give me hint please. I guess the denominator can be...

Anyone know how to integrate this? ##\int{\frac{(1 + x^2)}{(1 - x^2)\sqrt{1 + x^4}}dx}## Please give me a hint as I even don't know what to do.

Hi. Choose 3 random points M,N,P on sides of an equilateral triangle ABC . What's the probability that area of MNP is greater than or equal to half of area of ABC? What's the probability if points are chosen inside ABC?

Hi, I am a enthusiastic student (not yet in University) but am mature for my age so please read on... I am deeply passionate about Theoretical Physics (Practically fell in love with it) but also I am concerned about future, as much as I do want to pursue Physics in University I feel a lot of...

Here's the source:http://web.mit.edu/dvp/www/Work/8.06/dvp-8.06-paper.pdf Regarding page 5 of 14, I don't understand the multiple integrals thing. What is that supposed to mean? Ain't we supposed to sum up all the paths but why do they do the multiple integral thing? Also regarding page 4 of...

Hi. I'm a third year student at university and double majoring in physics and math. Currently, I don't have the struggle with math that I do with physics. Although I took my first physics class, I did horribly on it and got a D+! I'm sure I am not unintelligent, but for some reason I'm just not...

I've got a Lenovo y510p laptop, and I can hear the hard drive spinning up and spinning back down about once every 30 seconds to once every 2 minutes while I'm using the laptop normally. It's starting to drive me crazy and it's distracting. I'm wondering if this is affecting the lifetime of my...

the question is , to find the net resistance across the points a and b as marked in the figure(attached).Here I think that the method of Symmetry should work . But I am not sure about it and moreover its not clear to me how to use it.The Attempt at a Solution

I have been thinking about this situation I am currently in for awhile now and have talked to a few close friends about the situation I am in now... I am sure a few of you might have been in the same position as I am awhile ago or now... Here we go... A little over half a year ago I had met a...

Hi. This isn't for any sort of homework. I've run into a deadend where I have a situation like this where I need to solve for "a": a(a+b+c) =d You'd think it would be easy but I can't seem to get "a" by itself. It always end up on both sides of the equation at best which is starting to...

Our hard drives are reaching the limit of memory capacity and they are studying about the idea of using the molecules and atoms to store memories. Can information or memories be stored in the quantum state? When we heard of quantum state applications in computer, we mostly think about quantum...

Hello, I was hoping you could solve an argument. We are wondering how hard you can push something. Let's say I have a piece of wood clamped down on a table and I want to push the piece of wood left or right. If the clamp is pushing down on the piece of wood at 100 pounds, I would need 100...

Homework Statement http://www.solutioninn.com/physics/electricity-and-magnetism/magnetic-fields/particle-with-charge-2.15uc-and-mass-3.20-x-10-11-kg-is I am just going to link this because I don't know how to draw a nice diagram like that and put it here. But essentially that is the question...

I have read lots of comments talking about how hard is to get tenure or goverment-funding research positions. Okay, but how hard is it? Perhaps some statistical info about it? From what I've heard, there are around 6k astronomers in the usa. Let's asume half of them are working in the industry...

If anyone else here is a fan of hard science fiction, do you have any recommendations? I just read Farside by Ben Bova and I really enjoyed it, so I'd say it's worth a read if you come across it.

I'm trying to pull some old Olympiad questions for some students, but I can't get a handle on this one. I'd really like to include it, though. In answering general knowledge questions (framed so that each question is answered yes or no), the teacher's probability of being correct is A and a...

Im currently in my 3rd and final year at a community college and my major is ME. My uncle who is an ME told me that is it very hard to find a job as an ME and is better if i switch to civil engineering. Is this true? His toned seemed condescending the whole conversation and saying that students...

So here's the deal. I've frightened myself rather badly looking at pictures of deceased sailors and now it looks like I'll be spending this night awake. I have to start working at around 9:00, so that leaves me roughly with 6 hours to kill. Please give me ideas of what to do, but it cannot...

Hi MHB, This problem has been one big headache for me and I failed miserably every time that I attempted it. I thought to dump it into the trash, but I couldn't, simply because I would like very much to solve it. So, I hope to get some good help from this site and I thank anyone who wants...

Hello, I've been meaning to ask this question for a while. I have been studying hard for the past year and a half (It's my second year of Computer Science) while not getting remotely close to the desired results. I passed my first year with a 7.2 GPA (5 (failing grade) - 6 - 7 - 8 - 9 - 10...

Homework Statement a,b is constant and s is impact parameter, θ is scattering angle. i know that ψ in the picture is <ψ=(π-θ)/2> Homework Equations differential scattering crossection dσ/dΩ = (s/sinΘ) I ds/dθ I and σ(θ)=∫(dσ/dΩ)dΩ The Attempt at a Solution i guessed, first step is that...

So I've been sitting here for a while looking at my study guide and I am not sure how to find the product (or even the inverse) of this permutation in S9: (2 5 1 3 6 4) (8 5 6)(1 9) = (1 3 8 5 9)(2 6 4) (Correct answer) I know it starts off with 1 --> 3, then you get (1 3 and then after you...

Homework Statement integrate (t^2) / (1+2t) . Wolfram alpha gave this as the answer: http://www4a.wolframalpha.com/Calculate/MSP/MSP957620di145hih25dggd00002hc5g230hb2h25hd?MSPStoreType=image/gif&s=24&w=229.&h=36. The Attempt at a Solution I tried a u-substitution and couldn't arrive at a...

I would like to know why is that this course is so hard? I have never put so many hours and nights trying to understand a course and still feel very lost. 90% of my college class (Physics 201) has failed the exam. My fellow students in my team have the best GPA 3.5 and up and they are getting...

Next semester, I have an English teacher who apparently marks ridiculously hard, and evidently, the highest mark in his class was somewhere at a low 80% for his previous grade 11 class. I'm in grade 12 and I need a 90% or at least a high 80%. What sort of ways are there for dealing with teachers...

A friend i know is taking a course on IOS/OS X programming with objective-c, and i thought i might want to learn it too. I already know the very basics of programming, a bit of python and javascript, so i know what things like lists, strings, integers,booleans, floats, loops, functions and...

I can't compute the integral: \int \frac{\arccos(\sqrt{x^2+y^2})}{\sqrt{x^2+y^2}}\frac{x-a}/{(\sqrt{(x-1)^2+y^2})^3 dxdy on an unit circle: r < 1. for const: a = 0.01, 0.02, ect. up to 1 or 2. I used a polar coordinates, but the values jump dramatically in some places (around the 'a' values)...

Homework Statement Sheldon moves a box of comic books to stuarts comic book store by attaching a rope to the box and pulling with a force of 90 N at an angle of 30. The box of comic books has a mass of 20 kg and the coefficient of kinetic friction between the bottom of the box and the sidewalk...

I am still working on my undergrad, but am fairly certain I want to get an upper level physics degree so that I can teach. How hard is it to get a good teaching job, and how can I best prepare. I am not shy of hard work, but I am nervous that after a decade of education I won't be able to get a...

Here's a story I've been working on for the past week. It's more of an experiment really. This novel does (or will eventually) interact with a myriad of fields, including computer science, nanotechnology, molecular biology, and quantum mechanics. I'd really love to see some input from...

Homework Statement A motor imposes 5 Nm on a shaft of a 100kg flywheel which is 80cm(diameter) What is the rotational kinetic energy after 10 mins? assuming the flywheel was at rest and the mass moment of inertia of the shaft is negligble. Homework Equations Ig=1/2 * mr^2...

[Note: Post restored from archive - gneill, PF Mentor] Homework Statement A pendulum consists of a uniform circular disk of radius r which is free to turn about a horizontal axis perpendicular to it's plane. Find the position of the axis for which the periodic time ( for small amplitude...

Hello I am looking for scientific research done on the topic of "what is more important to success: talent or hard work?" I've been plagued all my life with the idea that "since I have a very good talent I don't need to work much". It backfired really bad. So I would like to ask if anyone...

--squeeze into it. Right, I've got all these shards of a shattered terrestrial planet that are encased in magic that allows them to hold atmosphere and have artificial gravity. The magic doesn't change it's gravity outside the limits of the spell, though, so the shards will interact with...

A common trope in pop SF. But can they be realistic in a hard SF, no FTL, no hide in space? I have collected a few counterarguments (C:), and my justifications (A:) to overcome them, but i'd like to see other opinions as well, whether my answers has great flaws or not, maybe advices, good...

Homework Statement The problem is in the photo below: https://www.physicsforums.com/attachment.php?attachmentid=71928&stc=1&d=1407288108 Text: Figure CP6.74 shows an accelerometer, a device for measuring the horizontal acceleration of cars and airplanes. A ball is free to roll on a parabolic...

Hello, I am choosing glasses for a novel solar cell design, and part of the criteria is if the glass will be able to withstand hail and other things (?) falling from the sky, since this glass will be the cover glass for the entire solar cell. I can gather information on the glass including...

Hi all! I am wondering if there is an interpretation of QM where the future is "set in stone" (for lack of a better phrase). It can be unknowable (the future)...but it shouldn't be random in any way. Edit: basically I'm looking for a hard determinism type of QM interpretation.

Just recently I decided to buy an ozone generator that can produce 4 grams of ozone / hour. However, I did a little research and found that ozone has a half life of 12.5 hours at 35 Celsius. For fun, I decided to find an equation that would let me know the amount of ozone left in the room...