What is Intro: Definition and 563 Discussions

Hi everyone, I was wondering what you all recommend for studying/reviewing Introductory University Chemistry. I heard good things about the Silberberg textbooks, while I used Zumdahl at my school. So I was wondering, do you all think that Silberberg is better or should I maybe study a bit...

I am doing a long report on an experiment on the Velocity of Sound through various gases, and I am doing the historical context part of the introduction section. The experiment itself was to find the velocity of sound through different gases, and also to calculate from this the dimensionless...

Homework Statement Identify and sketch the curve represented by the parametric equations: x=1+cost y=1+sin^2t Homework Equations The Attempt at a Solution I have to isolate t in one of these equations and sub whatever t equals into the other equation right? So how do I get rid of the...

So I'm waving a hello to all of you here *waves*. I'm in the Rocky Mountain region, an INTP/J, and interested in physics since an early age without knowing it. I also love to draw and design graphics, if you're interested in looking at my gallery online just reply to this. I'm into...

I guess I'll introduce myself to the community here at PF. I'm a freshman undergraduate at University of California, Irvine. I discovered this site through my recent peak in interest for writing nonfiction. I hope that I help out, and at the same time profit by learning how to illustrate...

The courses called "Introductory Linear Algebra & Differential Equations" are potentially diluted too much in order to form into a one-semester course; the one which often follows the third semester of Calculus. This becomes a terminal Math course for students who will usually not go further...

Homework Statement Ok, maybe I'm slow at grasping this, but why is the potential energy U of an electron while it is tunneling through a 1 dimensional potential barrier of height V0 = V0? Homework Equations Schrodinger equation in 1D (using semiclassical approximation) The Attempt...

I've lost track of this book. It must be 15 years old by now. But I really want to find it. Too bad I don't even remember what it's called - except that I'm sure it had the name molecules in it. This book was an intro to many of the common molecules we encounter in our lives. It started off...

1. (a) Write a formula for the number in terms of the perimeter L and the area A of a circle. (b) Write the differential for your answer in part (a). (c) Suppose that L and A are determined experimentally. Write the resulting relative error in using your answer in part (b). 3...

Hey, Does anyone have a recommendation for a good intro to differential equations? The book I'm using now (Guterman & Nitecki) is pretty bad. I'm looking for lots of examples, practice problems, and hopefully answers. Thanks!

keep in mind this problem is on page 8 of my text (yes I'm already confused by the problem) and the ideal gas law was just introduced. problem: Estimate the average temperature of the air inside a hot air balloon. Assume that the total mass of the unfilled balloon and payload is 500kg. What...

Homework Statement A 2kg block, initially moving due east at 6m/s, is acted upon by an impulse having magnitude 4Ns and direction due west. What is the final velocity of the block? a) 8m/s west b) 4m/s west c) 4m/s east d) 8m/s east Homework Equations change in momentum = F*(time...

I'm just re-viewing one of my all time favourite TV series, "Twin Peaks"; I've always loved the intro: Let's be nostalgic and remind each other of other gems!

I'm new to programming languages in general and I discovered that engineering students at my university, of which I am one, have to take a first-year introductory course to programming in C. Apart from the fact that I'm clueless as to where to start, I'm looking for a good text which I can...

Not sure if this is the best place, but it's also my first post, so meta-answers about where I'm supposed to put this business are welcome too. I'm a physics student, and I'm interested in learning about Green functions, but I sold back the Boas book that I used for my math methods class (we...

Any suggestion about an introductory book on cosmic rays?

Hey all, I'm looking for a good intro book to DSP at an upper undergrad level for electrical and computer engineers. I've glanced through a few books and they look very math intensive. This is not a problem for me. However, since this would mainly be an introduction, I would not like to get...

Hope I am posting this question in the correct forum, I was not sure as there are so many. Anyways, I am in finals week for Intro to Chemistry class. It really put me through the ringer, I mean I had a hard time in this class, and yes I studied. Now I need to take Chem 200 or General Chem...

hey everyone, could any of you recommend a good introductory quantum physics book? the thing is...i'm just interested in physics in terms of curiosity. I'm not doing physics major or anything. i always keep hearing how relativity and quantum theory are the two most believed...

[SOLVED] Intro course Twin Paradox Homework Statement You probably already know. One twin stays on earth. One goes 4ly away at .8c. The question asked a bunch of different things. How long does the twin on the ship think it takes. How long does the twin on Earth think it takes. How long...

new to flipped-SU(5) wish to learn some intro stuffs on this gauge model: flipped-SU(5), its structure, phenomenologies, properties...etc. can someone kind enough to suggest some references, review articles which discuss this topic extensively? thanks in advance

I have solved this problem but am not sure where I'm going wrong here... Suppose you pour water into a container until it reaches a depth of 20cm . Next, you carefully pour in a 9.7cm thickness of olive oil so that it floats on top of the water. What's the pressure at the bottom of the...

This is a brief tutorial to cover the basics of index notation which are useful when handling complicated expressions involving cross and dot products. I will skip over a lot of technicalities (such as covariant and contravariant vectors) and focus on 3 dimensions - but all of what I say here...

Homework Statement The probability for a boy to be born is 51.3%. The probability for a girl to be born is 48.7%. The probabilities are independent of the sex of any children previously born to a family. A couple has four children. (a) What is the probability that all four children are...

http://session.masteringphysics.com/problemAsset/1007460/26/55544.jpg What is the equation that results from choosing the pivot point to be the point from which the mass hangs (where W acts)? Express your answer in terms of the unknown quantities T_L and T_R and the known lengths x and L...

what's a good book to segue from a calc sequence to upper level proof based classes? i need something that presumes nothing about my mathematical reasoning abilities, like i don't even know how to do proof by induction.

Homework Statement The figure (attached (5-56))shows a box of mass m2 = 2.60 kg on a frictionless plane inclined at angle θ = 33°. It is connected by a cord of negligible mass to a box of mass m1 = 4.00 kg on a horizontal frictionless surface. The pulley is frictionless and massless. (a)...

An object has rotational inertia I. The object, initially at rest, begins to rotate with a constant angular acceleration of magnitude alpha. What is the magnitude of the angular momentum L of the object after time t? ___ So I know that I have to find angular velocity and use the equation...

Hey, I'm currently in an intro to EE course, and our textbook is horrendous (Hambley's Electrical Engineering Principles and Applications). Does anyone have a suggestion on a better alternative that provides a lot of practice problems/answers?

Homework Statement Show a derivation of d = 1/2 a t2Homework Equations hint: v=a*tThe Attempt at a Solution I'm not sure how to attempt this. to be perfectly frank I am not well versed in physics/mathematics. If anyone could be of assistance, i would be most grateful.

hi everyone I'm having problem with these 3 questions that i have to answer for my lab and i was wondering if any of u guys could help me out on these... any help would be appreciated... - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

Having some trouble with the last part of this question: A ball is projected horizontally from the edge of a table that is 1.11 m high, and it strikes the floor at a point 1.36 m from the base of the table. What is the initial speed of the ball? How high is the ball above the floor when...

I am reading a Vol2 of geometry book by Spivak. On page 220-221 he says that: "Notice that the possibility of defining covariant derivatives depends only on the equation..." The equation is some equality involving Christoffel Symbol. If anyone has this book, could you explain why what he...

Let f: X--> Y where X and Y are arbitrary sets. Show the following are equivalent. a. F is 1-1 on X b. f(A/B)=f(A)/f(B) for all subsets A and B of X c. f^-1 f(E) = E for all E that is a subset of X d. f(A intersect B) = f(A) union f(B) for all A,B that is a subset of X I know that in...

Hey, I am looking for a really good introductory book into Linux/Unix. I have been a Windows user since I first starting using a computer and all the online resources I have read on Unix have confused me in a way. Any book recomendations? Thanks

Homework Statement I have a list of 25 questions to answer. For the most part I answered all of them and would like to get my answers checked. I believe they are correct, but would like a second opinion on my answers (my answers are the underlined parts of the sentences). Here are the...

a gentle intro to real analysis? any suggestions anyone? something very readable?

A tortoise can run with a speed of 10.3 cm/s, and a hare can run 19.7 times as fast. In a race, they both start at the same time, but the hare stops to rest for 119 seconds. The tortoise wins by a shell (18.2 cm). How long does the race take? Homework Equations The only thing we've...

Can anyone describe to me what happens to electrons when one material is charged negatively by rybbing it on a second material, what must be different about the materials for this to work? And why does vinigear act as such a better electrolyte then water in a wet cell type? Why is a...

Do any exist? If so, please point me to them. Thanks.

Ok, so I was wondering when i am done taking Calc III would I be ready for Kleppners Intro to mechanics? I hear it is quite rigours having use of mulidemensional integration and some diff eq. But that is what Physics is all about! I believe todays physics books are just to cartoony. Is there a...

I am looking to learn analysis on my own - would like to know how does the book "real mathematical analysis" by Pugh compare to baby Rudin.

Hi folks I am reworking my website to (1) so that each page will have same font, style etc of any other page and (2) look for mistakes that I missed the first time around. The purpose of the web pages is to help others to learn the math and physics that the come to the web to learn. I fear...

I'm currently an undergraduate majoring in physics. I will be taking intro. quantum mechanics next year, however, I wanted to take the graduate level one. Before bashing me as one of those people who just want to skip around classes, hear me out. I am in a REU program right now, and the...

Homework Statement Prove that every nonempty proper subset of Rn has a nonempty boundry. The Attempt at a Solution First of all, I let S be an nonempty subset of Rn and S does not equal Rn. I tried to go about this in 2 different ways: 1) let x be in S and show that B(r,x) ∩ S ≠ ø and...

Does anyone know where I can find tutorial videos on introductory physics?

Anyone recommand readable intro books on modules and algebra of matrices?

I was wondering if I would be able to handle Intro to Java if I go in without any programing experience. I have experience in Calculus up to vector calculus and differential equations, electricity and magnetism physics course, but no programming. You guys think I can handle it?

I want a book on introductory Diff. Geometry for self study, but I don't know which book will be suitable for me, and not on a too high level. I know Linear Algebra, single & multi variablecalculus, basic vector calculus and very little about ODE's and PDE's. At the Diff. Geometry course...

Are there any good online quantum mechanics intros?