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/sci/ Science & Math

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Most viewed threads in this category

12 more posts in this thread. [Missing image file: ttw.jpg]
the best episode of through the wormhole in your opinion ?
5 more posts in this thread. [Missing image file: fin_1_wf.gif]
I'm having problems with this. Image is related. I've worked out the following: Boundaries: + and - 400 picometers Wavelength: 1950 picometers. With this information, how can I answer the following questions? 1) What is the approximate kinetic energy of the electron inside the well? Kinetic energy = _____eV. 2) Now consider an infinite square well potential of the same width L. When the electron is in the ground state of this infinite well, is its kinetic energy higher or lower than its kinetic energy in the ground state of the finite well? Is it higher or lower? 3) If the electron were in the ground state of an infinite square well of the same width L, what would be its kinetic energy? Its kinetic energy = _____eV. I would really appreciate if anyone can help or provide insight into this.
6 more posts in this thread. [Missing image file: coppin a feel.gif]
What unit is malleability measured in?
0 more posts in this thread. [Missing image file: BOOK.jpg]
Anyone have a solution manual for Advanced Mechanics of Materials and Applied Elasticity, 5th Edition Ansel C. Ugural Saul K. Fenster? Desperate for HW in the class.
223 more posts in this thread. [Missing image file: 220px-Einstein_1921_portrait2.jpg]
Taking physics questions...if they aren't too fucking retarded
10 more posts in this thread. [Missing image file: 1295209194523.jpg]
What does it mean when someone says the acceleration is .5g? inb4 retard. Just answer the question please and I'll be on my way
5 more posts in this thread. [Missing image file: 1335469973446.jpg]
Horrible programming student here. I have to make an 8x8 checkerboard using python & this graphics module a professor made. As of right now this is what I have from cs1graphics import * paper = Canvas(400,400) blackSquare = Square(50, Point(75,25)) blackSquare.setFillColor('black') paper.add(blackSquare) I know I need to use the modulus operator (%) within a loop to make it so that it inserts a black square in every even square, but I can't think of how to do this shit to save my life right now. After I put down the squares in a loop I have to actually put checkers on the image, but I think after I actually understand how to loop in the black squares I'll understand how to do that. Help?
0 more posts in this thread. [Missing image file: 1339410877002.jpg]
An ant is positioned at one of the 8 vertices of a cube which has a side of 1 foot.It needs to crawl to the farthest vertex from its location as fast as possible. Find the distance of the shortest route. How many are there?
14 more posts in this thread. [Missing image file: hshs.png]
Damn't man. I have a physics test tomorrow and I got behind studying other stuff. I can't figure this simple problem out and can't find an explanation anywhere that makes any sense. Can one of you hep? If Vector B is added to Vector C = 3.0i + 4.0j, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of Vector C. What is the magnitude of Vector B? I know how to get the magnitude with the C vectors I just can't figure the whole picture out. If anyone could just explain what the problem is saying I might be able to get it.
15 more posts in this thread. [Missing image file: physics.png]
How many revolutions does the object make during the first 4s? [please explain how you got your answer]
10 more posts in this thread. [Missing image file: chem e.jpg]
Is chemical engineering a very stressful job? I'm pursuing it, but I have generalized anxiety disorder and can not handle high stress levels at all. Should I switch to comp sci? I've been considering that due to low stress levels, but chem E has better wages, better hiring outlook, and is more interesting to me. Difficulty understanding the material is a non-issue for me, the problem is with large workloads and deadlines.
18 more posts in this thread. [Missing image file: 1343515167213.gif]
>A Ferris wheel with a radius of 12m makes one complete rotation every 8 seconds. >For a rider with a mass of 40kg, what is the magnitude of the centripetal force required to keep that rider moving in a circle? Oh god what. Help please?
4 more posts in this thread. [Missing image file: 1348685750794.jpg]
/sci/ What cures crystal/coke dick? Meth and coke constrict the blood vessles. So it makes getting your dick hard, well hard. What can I take to make it so I can get a raging boner and fuck for 2 hours straight?
104 more posts in this thread. [Missing image file: sciences.png]
6 more posts in this thread. [Missing image file: einstein_will_not_limit.jpg]
A while ago it was announced a particle went faster than light. After some tests, it was revealed it was juts a miscalculation. What would be the implications if a particle could go faster than light? How would affect physics?
25 more posts in this thread. [Missing image file: faraday_cage.jpg]
I'm trying to lessen the amount of radiation my body receives from the cell phone in my pocket (yes, I realize that it's likely this radiation is harmless, but I prefer to err on the side of caution until more research/data is available). What's the best way to go about doing this? I'm thinking about lining my pocket (the side touching my body) with a partial Faraday cage (metal screening), in the shape of a J, with the "J hook" being short and ending on the side of my pocket opposite the side that touches my body. I figure that way the phone can still get a signal but the majority of the waves will be directed away from my body. Would this even work?
46 more posts in this thread. [Missing image file: SMBC-xkcd-bundle_large.png]
What is your opinion on xkcd, PHD Comics and SMBC(Saturday Morning Breakfast Cereal? Do you have a favorite comic that is science related?
29 more posts in this thread. [Missing image file: tesla-n-edison.png]
Nikola Tesla and Thomas Edison In terms of scientific progress, who achieved more?
6 more posts in this thread. [Missing image file: triscale.jpg]
What is the best method to memorize information? I have to learn for 4 exams. Right now im using the method of loci which is good, but adding more physical locations is very hard. What methods do you all use? Any tips how i can improve my skills or general in learning?
28 more posts in this thread. [Missing image file: World-cannabis-laws.png]
>2012 >not living in a place that decriminalized marijuana Oregonian here. it's decriminalized, but we're gonna take a step further. We're actually going to vote on this bitch later this year http://en.wikipedia.org/wiki/Oregon_Cannabis_Tax_Act >would allow personal marijuana and hemp cultivation or use without a license and create a commission to regulate the sale of commercial marijuana.[1] >regulate the sale of commercial marijuana.[1] WE NETHERLANDS NOW other states are doing this shit too, this november I can't fucking believe California vetoed that chance last time they voted on doing this, though. I mean this is a population of 37 MILLION people. It would be the largest place on earth to have that kind of a a law for marijuana anyway, whatever...this year, Oregon, Washington, and Colorado will have their chance of doing so. That'd be a combined population of 15 million; not bad






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