Engineering - January 2007

I no longer desire flesh or free will.

How would I go about becoming a transformer?

2007-01-24 12:28:13 · 5 answers · asked by Zeek 3

im doing a science project an i dnot have a idea of what find of project to do and this project of the egg is a thing of 1st or 2st grade and i m in 4t grade i need another idea to de cool and an i need the materials to do it because i do not want look like i was dom in frot of 835 students an i do not want to de the laght of everydoby

2007-01-24 12:24:38 · 8 answers · asked by Anonymous

In a friend's home, a she walks over to an end table, reaches for the lamp, and sometimes there is a musical noise that sounds like one of those musical greeting cards. Cannot figure out where the sound is coming from. Any ideas? Electrical problem or what?!?

2007-01-24 12:09:48 · 1 answers · asked by Nightflyer 5

2007-01-24 11:25:43 · 2 answers · asked by mohdi1974 1

I need to know an easy way to calculate whether or not a point is in triangle ABC. This may sound easy but I haven't been able to figure it out yet. It's easy to do if you graph it but I need something where I could figure it out mathematically without looking at a graph or just imagining it. I need it for a program I'm making using C++ so if you know of a program that works using C++ that would be even better.

2007-01-24 11:15:15 · 2 answers · asked by antidisestablishmentarianism 2

According to the voltage divider, a resistor reduces voltage, and i hear that current remains the same, in that case, why do we use a resistor to limit current?

2007-01-24 11:11:35 · 8 answers · asked by a a 1

I'm a recent graduate of a technical school and I got my degree in Electronic and communications. Over the course of my classes, I've learned different mathematical formulas and theory. But now I forgot most of them. Does an engineer of electronics ever actually use these formulas in the work field??

2007-01-24 11:06:22 · 1 answers · asked by physical_graffiti402 2

2007-01-24 11:02:19 · 11 answers · asked by csnape2003 3

If the current is equal in all series circuits, how does it increase...for instance, leds burning out in series and no tin parallel.

2007-01-24 10:56:48 · 6 answers · asked by a a 1

the idea is simple a chargable battery which is charged by ac line power .then one induction motor controlled by induction motor drives for wheels and other things who is ready to share what she/he knows??

2007-01-24 10:12:37 · 3 answers · asked by nima_iran_1985 3

2007-01-24 10:04:42 · 3 answers · asked by Thank you 1

2007-01-24 09:42:36 · 2 answers · asked by Anonymous

I would like to become an immortal robot that turns into a helicopter by the end of this month. How can I do this without spending more than $25.92?

2007-01-24 09:24:34 · 5 answers · asked by Anonymous

2007-01-24 09:15:13 · 2 answers · asked by Kinloch K 1

+ the total # of watts and volts would be nice if you got 'em!

2007-01-24 09:08:12 · 15 answers · asked by Pneurbies 2

1. Person releases a toy car
2. toy car hits a book
3. book hits a button and the button starts an escalator with a marble
4. the marble is dropped off at the top
5. it hits some dominoes
6. the dominoes hit another marble
7. that one travels down a track and hits a see-saw
8. the see-saw releases another marble which travels down another track
9. the marble hits a book which continues to hit 2 more
10. the last one hits a see-saw and the other end hits one of those dog ball throwers with a pencil on top
11. it should throw the pencil back to the person.
for ?s send me an email

2007-01-24 09:01:20 · 2 answers · asked by JeffK 1

a)Propeller
b)Axial
c)In line
d)Centrifugal

2. Power Factors correct is controlled using
a) Resistors
b) Capacitors
c) Inductors
d) Conductors

3. The symbol for a transformer used in schematic drawings is
a) 2 zig-zag lines
b) 2 coiled lines
c) 2 rectangular lines
d) 2 circular lines

4. In dry arid countries cooiling is provided by
a) Wind benders
b) Wind diverters
c) Wind scoops
d) Wind Vanes


5. A room diffuser will attempt to mix the incoming air so that the air in which of the following has the designed condition
a) Mixing Zone
b)Table Zone
c) Floor Zone
d)Occupied Zone

I know this is really long but please this will really help my revision. And trust I have been studying, and have found near answers but I need to be sure, your help will be greatly appreciated.

2007-01-24 08:28:05 · 5 answers · asked by citygirl21jb 2

I am an architecture student and I am doing some case studies on buildings with a welded steel beam structure. I am a little bored with the buildings I have come across and was wondering if anyone could give me some names of some buildings that fit my assignment but would also be interesting to research. Something untraditional.
Thanks.

2007-01-24 08:00:26 · 2 answers · asked by ? 3

Are there standards for estimating the peak instantaneous wastewater flow from a large dormitory. I have info such as the number of toilets and the number of shower heads, and I am inclined to think that peak flow would be with about 90% of the toilets and shower heads operating simultaneously, but that yields a very large number for peak flow.

2007-01-24 07:46:11 · 3 answers · asked by Sprinter 5

Hello all. I am wondering if there is any good book which summarizes important facts and points for undergrad first year material science and engineering. Also I would appreciate anyone who shares their experience in mastering this subject using other methods. Thank you all ;)

2007-01-24 07:30:00 · 5 answers · asked by jlryan87 2

I'm a little unsure about the type of current produced by photovoltaic cells. It appears that they create A/C current b/c we have the electrons in the n-type material filling the holes in the p-type material in which case holes are subsequently created in the n-type material and then electrons go back there to fill up the holes. So it seems like there's a continuous desire to be balanced. But this creates A/C current. Right? Do we put in diodes to rectifiy the current? I'm just a little confused here. thanks

2007-01-24 06:08:21 · 8 answers · asked by Anonymous

If i have a 400w Metal Halide fixture why does the examples I am given around 455w? And a flourescent 4 - T5HO54W Fixture reads somewhere in the 230 range? Way above the simple calculation of addition...How do I find the draw for 1000w? And is the a calculation to figure out this info? I need it for a energy summary.
tHX!

2007-01-24 05:47:44 · 2 answers · asked by hermfield@prodigy.net 2

2007-01-24 05:26:49 · 1 answers · asked by eminentgopi 1

In order to save money, some people believe it's better to totally turn off the heat for a building over the weekend (or overnight) and then turn it back on when people come back. Others argue that it's more cost-effective to leave the thermostat on a lower temperature than typically desired (like near 60), but not let the building's temp get as far down as 50 or 55 so that it will take less energy to reheat it to comfortable. Can someone provide the equations to calculate the amount of heat used in each case so that we can do a comparison? Thanks!

2007-01-24 04:58:09 · 8 answers · asked by Corkscrew Pitcher 2

I am interested on how to build my own house.
I would like to learn more about it.
*engineer that is for building houses.
and what's the name/title of that engineer?

2007-01-24 04:35:01 · 5 answers · asked by ta142akuq78 2

2007-01-24 04:30:39 · 2 answers · asked by crystal_12321 1

2007-01-24 04:16:17 · 4 answers · asked by SHARON B 1

2007-01-24 04:05:30 · 1 answers · asked by (A) 7

to make a twin engine mazda rotory with the engines enginerred to be built as one ?

2007-01-24 04:02:17 · 5 answers · asked by Anonymous

Hi,

I have the following expressions and was wondering how I would create circuits using AND, OR, and NOT gates.

1. Y = NAND + AND
2. Y = NOT * NOT + AND
3. Y = OR * NOR
4. Y = OR * (NOT + NOT)


Thanks!

2007-01-24 03:52:32 · 3 answers · asked by Anonymous