Members Definition and 140 Threads

1. Determine the type and magnitude of force in bars BD and BE using method of members. 2. Well, I don't know where to start. I know there are three equations EFy=0, EFx=0, EMc=0 but I don't know what the first member to consider and how to solve this type of problem. 3. There is a hint that...

Hello, I am a senior and am planning to go to a physics gradschool. Looking at several forums and tips online, I came to know that it is good to contact faculty members of prospective gradschool. But I am not sure how to start the conversation, like what to talk about and how. What should i...

In how many ways can a committee of 5 be selected from 35 members?

any one help me... HOw many committees can be formed with at most 5 members?

Homework Statement A solid circular bar ABCD with fixed supports at ends A and D is acted upon by two equal and oppositely directed torques T_0. The torques are applied at points B and C, each of which is located at a distance x from one end of the bar. (The distance x may vary from zero to...

Homework Statement There are 5 girls and 2 boys. A committee of 3 members is to be formed such that there is at least one boy in the committee. Find the number of ways of doing so. The Attempt at a Solution One place is fixed for a boy. So choosing one boy out of 2: 2C1 I am left...

[PLEASE HELP!] Forces in members of a truss Homework Statement A barrel vault truss is loaded as shown. Knowing that the length of the bottom chords DF, FH, ..., and QS is 3 ft, determine the force is members IK, JL, and JM. http://img68.imageshack.us/img68/4817/fyjfhjfgjhfghgx8.jpg...

Good evening I'm in the midst of reviewing for my exam, I've come across a piece of code I don't understand. It is as follows: ////////////////////////// #include <iostream> using namespace std; class number{ private: int value; public: number(int v){value = v;} void...

What is the easiest way to determine the two force member in a frame question? When I look at a frame and see the pinned connections, I automatically assume that there is a reaction in the x and y directions. How can I tell at which pin there is only one reaction, and what direction it is...

I'm using VS C++ 2005 in MFC, and I'm trying to access a member of another class. I'll try and make this as short as possible and still give the whole picture of what I am trying to do. I created a SDI with the CFormView Class. I have a dialog with an edit control box with a CString...

Hi guys! The question is attached!...sorry!...theres weird symbols in the question any help would be v. much appreciated!:smile:

let A = {z(belogs to)C | z^6 = −64} list all members of A how many distinct members of A are there?

Hello, My name is Mike. I am new to this forum. Just saying helo. ________________________________________________ phentermine without a prescription q [/url]

I'm laying in bed saturday morning cruising the internet and I started reading Mr. Robin Parsons's old posts and I did a quick google search. Here is his new blog. http://ca.blog.360.yahoo.com/blog-oNTYs588aehD1wSrmHN.TWxMY99HFKk-?cq=1&p=98 I don't know why his story is so intriguing...

:smile: 1.What is the concept of zero force members? 2.How to observe them in truss structures? 3.Can provide some examples? Thanks A Lot. Thanks for sharing.:blushing:

hello i hope i have came to the right place. i have this question and I am having difficulty doing it and was hoping you lot could help me i have attached a diagram and what i have to do is. Produce calculations for the force in each member due to loads P and 2P it is symmetrical as...

Diagram: http://i177.photobucket.com/albums/w222/77whtrocco/NORMALSTRESS.jpg Given: members AB, CD, and EF have x-sectional area of 25 mm^2. E = 200 GPa. Neglect deformation in member GH. Find: Normal Stresses in members AB, CD, and EF. I know that I need to determine the axial forces in these...

Which cube members are not in the sequence and prove it? 2, 5, 8, 11, 14, ... How can this be proved :cry: My answer: an = 3n + 2 Any natural number may be written as N= 3k+p for some natural number K and p=0,1 or 2. So N^3=(3k+p)3 N^3=3(9k+k^2p+kp^2)+p^3 N^3=3k+p^3...

Number of PF members: 33 333! The exclamation signs do not stand for nested factorials, though. :smile:

Everyone tells me here, time travel is not even *theortically* possible. Some scientist are bold and say time traevl to the future IS possible. I don't understand why no one here even accepts it as a theortically possbility? Physics allows it, and I don't have a PhD in physics but according to...

I'm 17, time to start my higher-level education and I'd like to share my great news to the rest of the community. I was accepted to The Pennsylvania State University - Main Campus for Aeronautical Engineering! :-p That is my #1 choice and I'm so ecstatic!

Yoko Ono is 72. :cry: :cry: :cry:

Question for the "old" members of the forum Hi everybody, This is a question mostly for the older members of the forums or anynone who knows. I was wondering if any important mathematical result has been firstly posted here, or if there is anything interesting that has come up through the...

This is a thread that may only be posted in by yellow members. If you are yellow, post a remark or two. Isn't it nice being yellow?

I have no idea why I'm curious about this. Probably half to get some body types to go with the faces in the picture thread and half because I've been obsessing over NBA draft scouting recently. Anyway, I measured myself recently and came out right around 6'3", 180 lbs.

Many years ago I was a substitute teacher for the PF Academy for Incorrigible Youths. On my first day teaching I was pulled aside by the principal who told me a little bit about the kids in my class. “You have a rotten bunch of kids to look after, I feel sorry for you. These are the bottom of...

Easy riddle: Mom and pop have 6 sons. Each of the sons has a sister. How many members are there in that family? Answer (highlight): Nine (9)

How many of you are members of the institute of electrical and electronic engineers (IEEE)? other than the spectrum magazines which kept coming to my mailbox every month (many of them unread inside their plastic sheaths as I didn't have the time, eventually giving up all the issues to friends...

I would like to get a rough idea of the education level of the participants in the Philosophy Forum. What is your education in this field? Have you taken courses or have a degree? Or are you just interested?

I have a class and i'd like to initialize or set the values of its private members in the client code, how can I do that ? thanku, jim

We should set have some PC game competitions among interested PF members. We can use this threat to pick servers, times, games, etc. Potential games can be the Quakes, Starcraft, Warcraft 3, Battlefield 1942, the Unreal Tournaments, Half-life, or whatever you want to play.

Q: How many forum members does it takes to change a light bulb? A: * 1 to change the light bulb and to post that the light bulb has been changed * 14 to share similar experiences of changing light bulbs and how the light bulb could have been changed differently * 7 to caution about...

I was thinking about this on the way to work today. Who would be in your ultimate band? For me, the answers would change from mood to mood... Here's my current mood: Guitar: Ani and Prince. Piano: Tori and Thelonius.(I think that such opposing styles and philosophies would complement each...

What type of Spacecraft would you design and what propulsion system would you use? Her are my thoughts, what are your? Can we, as Forum members, pool our ideas and come up with a feasible design? I say, let's try. 1. Crew size: 1. Commander and Pilot. 2. Spacecraft Systems...

To all the posters and lurkers on the MKaku forum, joyous 2004 and may all your wishes come true (void where prohibited by law .

Hello! Eid Mubarak form me to all PF members! This is a very important and enjoyable day for us! I don't know anyone of you are also enjoying this day - today or not! You may also not know the day...or what is it actaully! But no matter...Eid Mubarak to you all and thanks for...

This poll is to determine the global localization of all our members. Physicsforums has a worldwide network of participant of all ages and cultures, it would be interesting to evaluate where they are from. I tried to come up with a fair map of the world, which I eventually based on...

Any other civil/environmental engineering members here at PF? I have a masters degree and "professional engineer" certification in environmental engineering...plus several years working in the field (so to speak). My schoolin' focused on water/wastewater treatment, but my career has focused...

The subject of IQ tests have been discussed over and over in PF 2.0 (but in different topics, and in the middle of topics). It seems that the PF members don't all agree on wether the IQ test is really a good pointer to the person's intelligence. -Some of the users on PF said that IQ tests are...