A building, or edifice, is a structure with a roof and walls standing more or less permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, and aesthetic reasons. To better understand the term building compare the list of nonbuilding structures.
Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the outside (a place that at times may be harsh and harmful).
Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic expression. In recent years, interest in sustainable planning and building practices has also become an intentional part of the design process of many new buildings and other structures.
Hey guys,
My advisor wants me to send him my resume for next week and I am a little nervous that i won't have anything to put. I've been employed at Mcdonalds, Roundtable, and i also work as a Lab tech at my univ. (setting up lower division labs). I was also a grader for a year.
Over...
Hello , i need some help with pspice.
i need to build a circuit with 3 entrances and 1 exit.
that will provide "1" every time there is at least tow "1" in the entrances.
x y z Z
0 0 0 0
0 0 1 0
0 1 0 0
0 1 1 1
1 0 0 0
1 0 1 1
1 1 0 1
1 1 1 1
this is what i built and what i get..
any...
I have one doubt in physics...
If two stones(one stone is having 10 kg mass and other one is having 5 kg)are drop down from the 100 m building. After 5 second, how much distance they will cover ?
I am going to make a langmuir probe but I have heard there is a circuit for that, is there any circuit for driver of the probe? any help would be appreciated.
I'm working on a thermal balance of a building. In particular, I'm trying to calculate the effect energy gains (mostly due to solar radiation) have on the inside temperature of the building. So I calculated the energy gains per month, for instance, 20 kW for the month of February (it's an...
I am building a homemade ropetow in my backyard. I have done a lot of research and unfortunately I have been away from physics for about 15 years, so I am having trouble calculating my motor size and transmission options. I will lie out what I am trying to accomplish below.
Here are the...
Need help with motor sizing/torque calculation - Building a Ski Rope Tow.
I am building a homemade ropetow in my backyard. I have done a lot of research and unfortunately I have been away from physics for about 15 years, so I am having trouble calculating my motor size and transmission...
One ball is thrown upwards at 10 m/s, the other is thrown straight down (not dropped) also at 10 m/s. Which ball arrives first?
This is more of a theoretical question than anything. I know the relevant equations such as v^2=u^2 +2as, but I was thinking that the height of the building has to...
Hi there,
I'm building a speaker for my intro to EE class. We were given ten small washer magnets, some washers, a nut and a bolt. Enameled wire is also provided. My group prototyped a speaker with the following configuration:
Voice coil wrapped around a paper tube which fits around the bolt...
Hi, I'm having a bit of trouble with the below practice problem from my textbook. The answer given in the back is -9.52 m/s, but there is no explanation. Thanks for any help.
Homework Statement
Two balls are thrown off of a 7.25 m high building both at an initial speed of 63.5 mph. However...
I am trying to build a rotational transformation matrix both for counterclockwise and clockwise angles.
The first matrix in the picture is for counterclockwise angles and the second one for clockwise angles. The first matrix I built corresponds to the one given in my linear algebra book so it...
hello all.there is a electric hoist cradle(Temporary personnel lifting;make fixator) which one of our contractor uses to clean the outside glasses of a high rise building.the cables are suspended up at the top railing with fasteners and then the electric motor escalates the cradle for use.the...
I've been enamored with the idea of vacuum balloons for the better part of a decade. I know they're an extremely difficult engineering challenge, and may not actually be possible even with the strongest materials.
I've come across a novel approach to the problem, and I'm curious what actual...
Hello!
I am interested in building a cyclotron. Since I doubt that I will be compotent enough to build a cyclotron right now, what are some tips that you can give me to get me started on the (long) process towards building a cyclotron. I understand the several dangers - I am interacting with...
I want to make a linear motor with some friends, just to see can we make it and how it works.
Is there any tutorial or some guidance.
i was thinking about a induction motor, but am not quite sure how to put the coils on the stator.
Homework Statement
You are sitting by a window when someone on the roof drops a ball. The ball spends .30 seconds in front of the window (which is 1.50 meters tall.) The ball subsequently hits the sidewalk and bounces back up at the same speed. On its way up it passes by the window again...
Six balls are thrown from the top of a building. Two balls are dropped from rest, two are thrown downward with a velocity of 10 m/s and two are thrown upward with a velocity of 10 m/s. Each ball has a differing mass as well, such as the two balls thrown from rest, one has a smaller mass than the...
Homework Statement
You've been asked to build a 14X microscope from a 2X magnifying lens and a 5X magnifying lens.
What will be the tube length of your microscope?
Homework Equations
Meye = 25/feye
Mobj = -L/fobj
M = (Meye)(Mobj)
The Attempt at a Solution
First, are you supposed to use the...
Hello, my name is Jordan Heath. I am a UBC third year student in the department of physics and am new to this forum. Me and a couple friends are looking into the possibility of constructing the double slit experiment and are currently wondering if it is possible to salvage a pair of CRT's from...
The most serious challenge to engineering a quantum computer is protecting it from decoherence. But FMO proteins in photosynthetic complexes can exhibit entanglement for a few picoseconds as reported here and here, among other places. So would it be possible to build a working, useful quantum...
Hey every one my name is Rich, I joined this forum to help me re-educate myself.
I had a pretty rough childhood and didn't have a good source of education.
So I'm not very smart but I like Engineering, I just wish i was better at it.
I'm hoping to find a job soon and enroll in college some...
Hi everybody.
Me and a friend of mine are going to be EE majors this year, so we thought we'd build a 3D printer from the very beginning. Of course we're going to have some instructors helping us out but I need some information about the whole thing before offering anyone anything!
First of...
Homework Statement A particle starts at rest, then accelerates at a constant rate of 1 meter per second squared.Homework EquationsPerhaps a(t) = t The Attempt at a SolutionI have a series of calculus-related questions based on this statement, but first, I just want to know if the equation above...
Homework Statement
A road lies between two parallel buildings. A motorist travels with speed 36 km/h on the road and hits the horn. He heard the echo 1 second later. The speed of sound is 330 m/s
a. Find the distance of the building
b. When will he hear the second echo?
Homework Equations...
[b]1. I have been given a homework problem for my geotechnical engineering course and to be honest I don't even know where to start, I was hoping someone could give me a few hints as to where I should start.
The question is:
You are the geotechnical engineer for a proposed office building...
Hello all!
I know they are out there, but I think that I can learn a lot by creating my own. I do not want to get too convoluted with optimizing this thing, but I was hoping some folks could offer some input.
I am narrowing the scope of this project so that the goal is to end up with a...
This might be too simple of a question but i am building an electro magnet and breaking down all of the components for sheer practice. when i measure my coils resistance it came to roughly between .9Ω and 1.3Ω... what battery (what voltage should i use to get the most power from my magnet and...
I have a 12 volt transformer (120v in) that I'm trying to use with low current devices (LM386 amp). My question is when I use my meter to read amperage or voltage I'm fully loading the circuit so I get like 2 amps across my resistors and capacitors. I don't need anywhere near this amount...
I'm currently building a new computer. A little quick background, it will be mainly used for internet and some gaming. I don't really care about using the highest resolution on the games, I just want decent resolution, decent sound and a high frame rate. I'm also trying to do it for as little...
I was looking at 2 inch actuated valves. In the Indian market they cost around 12,000 rupees(~$220). I have a couple of car window control motors. I was thinking of building a valve with it.
I would appreciate your thoughts on some simple design.
Hi
I have an old electric paper guillotine.
Guillotine have two esential functions apart from those associated with positioning the paper ready to cut.
1. Using power (usually electric motor) to operate the blade which cuts the paper stack.
2. Using power (an electric motor or manual turning of...
Any tips about how I would go about building this simulation/model?
I'm interesting in building for my portfolio a full simulation of large-scale networks under various circumstances measuring efficiency/optimization using different parameters and algorithms.
I current have a large business...
Hi all. I am wondering how long it takes for heat to leave building.
This is the example I have been working on:
A building is 203m^3 and we want to raise temp from 10C to 21.3C.
Vol=203m^3 => mass = 244kg (density may not be completely correct but doesn't matter)
Cp=1.005 kJ/kg.k
Q...
I am doing attemp to build rpg with realistic world and AI.
So what i need to simulate the persons are moving from input so them not there will be anatomy simulation.
My list:
1.full range of collision types absolutely elastic and inelastic and things between them
2.dynamics in air and...
Howdy guys. I just got done my freshman year in high school with a 3.85 gpa, I am wondering what would be a good "set" of classes to take as I progress in high school to build a backround in physics, and as a small prep for college. I have been told by others that it is good to get as high as...
I am trying to build a high frequency analog filter. I don't have the specs quite yet, but I do know how to create the transfer function. The trouble is, once I have that, how do I go about making this into a physical circuit?
All the online stuff I can find is either digital or low frequency...
Homework Statement
A stone is thrown upward from the top of a building at an angle of 30.0 degrees to the horizontal and with an initial speed of 20.0 m/s. The height of the building is 45.0 m.
Where does the stone strike the ground?
Homework Equations
v_{x0} = v_0\cos{\theta_0} where...
We have jack in our lab that is suppose to be connected to ground, but the building is old, and we are not sure if we can trust that it is actually connected to ground. Is there a way to test the ground? If so, what is that way?
Dr. Erzaask
A stone is dropped from the roof of a building; 1.50 s after that, a second stone is thrown straight down with an initial speed of 24.0 m/s , and the two stones land at the same time.
How long did it take the first stone to reach the ground?
V=Vo+aT
I plugged 1.5 s for time, 9.8...
Hello everyone,
I am a music composer and total noob. So please excuse my lack of engineering knowledge.
I am attempting to build a music box that can play without having to turn the gear's crankshaft manually. Here is a picture of the music box:
I have been doing some research and think I...
Hello, I was interested in building a Mach-Zender interferometer at home, and I was wondering if that is possible within reason and if anyone on here would happen to have some useful advice on how to accomplish this.
What kind of (affordable) components would be recommended to use?
How...
Hi there
As is known using non-infinity corrected objectives in infinity corrected microscopes is not a good idea because of many reasons (image quality will be degraded, back focal plane will be in wrong place, parfocal distance is not preserved, etc.).
What about building infinity corrected...
I have a warehouse (industrial building) which has a 5killowatt/hour output. This is a 3 phase supply.
I need to increase it to at least 10killowatt/hour. The electrical system is modern. But do I need to change the infrastructure to increase the power output?
If I need to change the...
I have to build an audio pre-amp for an important test next week.
Attached is the circuit schematic and deliverables wanted.
I would appreciate anyone who could draw out the actual component placements
on the attached stripboard print.
R10 is a variable resistor in particular the...
The hydro meter for my house sits on a pole at the front of my property (5.5 acres) approximetly 200 - 250ft from my house I can't give you the wire size that runs under ground.
My question is: Is there a loss of power in the distance from the meter to the house and would this result in my...
I want to build a cyclotron. Not necessarily a big one, and just for fun. I have a crude blueprint from a wikipedia article, but seeing as I don't know where to begin, could someone help me break it down? here is a link of the one I want to make...
the Dyson bladless fan relies on forcing air out along one side of the rim of a ring, so drawing air from the other side of the ring to create more airflow
the household implementation of the fan uses an ordinary air compressor at the base to pump the air into the ring, and this creates a...