Engineering - February 2007

2007-02-07 20:17:25 · 2 answers · asked by ahleks 2

2007-02-07 20:00:17 · 3 answers · asked by jeffrey o 1

two parallel resistors R1 and R2 are connected in series with two other parallel resistors R3 and R4. R1=1/8 ohms R2=1/4 ohms,R3 =7 ohms R4 =3.5ohms.Find the resistance of this circuit.

2007-02-07 19:51:25 · 2 answers · asked by Anonymous

about mwd/lwd direction.....everithing

2007-02-07 19:13:32 · 2 answers · asked by Anonymous

what's the difference between a capacitor and a battery?

2007-02-07 18:53:26 · 4 answers · asked by bigK 2

Compared to oil which is produced by unstable countries and organizations around the world, what's the story on lithium for high voltage batteries for hybrids and EVs?

2007-02-07 18:14:18 · 1 answers · asked by johnmba 2

2007-02-07 17:46:05 · 1 answers · asked by jv_moradi 1

I use a multitester I have to test AC voltage, DC voltage, ohms, and wondered if I can use it to test the continuous flow of current through a circuit or through the same strand of wire on a power cord, to make sure there is no break in the wire somewhere. Thanks for helping.

2007-02-07 16:53:00 · 3 answers · asked by Zujiya 2

a picture of a water pump and its parts,picture of cross section of a water pump & how water pump works

2007-02-07 16:26:27 · 3 answers · asked by nimaljayantha 1

2007-02-07 16:21:28 · 1 answers · asked by Anonymous

2007-02-07 16:06:21 · 4 answers · asked by shaan 1

Can you tell me where you got this from? like the source? ! thanks =)

2007-02-07 16:02:21 · 2 answers · asked by hsu136 2

2007-02-07 15:55:23 · 3 answers · asked by CARL B 1

I am in practical skills in applied tech.in school and I have a crossword puzzle I need help with!
1) measurement system based onmultiples of 10 ( 6 letter)
2)amount of energy used by an electrical device(7 letter)
3)the round prong on an electrical plug (6 letter)
4) device which uses air bubble to determine positioning. (5 letter)
5) measurement system based on the length of the king's foot (7 letter)
6)screwdriver with tip (8 letter)
7) pip which prevents noxious or poisonous gases from entering the house. (5 letter)
8) device used to remove waste water from sink (3 letter)
9) hardware which provides defense against intruders (7 letter)
10) device used in drywallor masonry to help fasten a screw (6 letter)

thank you all for who ever answered some or all my questions i greatly appreciateit!!!!

2007-02-07 14:43:52 · 3 answers · asked by lover2 1

This is a trick answer, and don forget your power factors.
Computer draws 450 watts, printer draws 1.5 amps, monitor is 1.5 amps and your constant is 120 Volts AC. Your Power factor is .778

I want 60 min. run time full load.
What is the cheapest route.?

2007-02-07 14:30:21 · 3 answers · asked by John P 2

how it is possible in freq 2.5GHz ? i would like to know how it is possible if you have refrences please let me know about those?

2007-02-07 13:45:15 · 3 answers · asked by Tom 1

By car I mean a rolling science project about the size of a shoebox or smaller. It is going to be powered by a small 9 Volt motor, which will rotate the wheel axle. I assume that the wheel size will not affect the RMP of the mini-motor, but please correct me if I'm wrong. Scientific answers or helpful equations would be greatly appreciated.

2007-02-07 13:39:31 · 10 answers · asked by friskydoodle 1

Like if u lay coins on a train track and let the train run over it... Does the coin squish instantly when the engine runs over it or does the trailers help to squish it?

2007-02-07 13:39:16 · 11 answers · asked by Gods_Soldier_373 1

ok i need your help. ima first time kiln buyer and been doing a liitle research on how to choose a kiln. what im wondering is did anyone had to get any electrical work done using a kiln that requires 240v 40 amp? isn't that close to the same power used when you use a regular dryer? pleas help i dont what to burn my apt, complex down!!! lol

2007-02-07 13:02:13 · 4 answers · asked by sosopure09 1

2007-02-07 12:50:16 · 7 answers · asked by Jakson Young 4

2007-02-07 12:28:05 · 4 answers · asked by dev n 1

I am trying to decide if or not to go to college for a bachelors in engineering or attend a 2 year technical school to be a specialized automotive tuner or a technician. I love to work on engines but also like to design new power punching parts for them. I could go either way but am leaning towards the automotive technician because the pay is pretty good and I know its better in engineering but I like physical work more than mental. My dad is pushing enginnering on me but I want to live my own life. I feel that he is pushing me beyond my capabilities. I want to get out into the world and make some money because I've already gone to school for 13 years.

2007-02-07 11:48:57 · 7 answers · asked by raceonedge 1

2007-02-07 11:44:10 · 4 answers · asked by Anonymous

I always wondered how to do that and I'd like an answer.

2007-02-07 11:34:39 · 17 answers · asked by Anonymous

I have this problem involving a zenor diode voltage regulator circuit. The zener is a 1N4753. R=56 ohm. Vin = 12 v. The load varies from 0 to 150mA. How would i calculate the load setting( RL) when the zener comes out of breakdown?

here is the drawing of the circuit:
http://img.photobucket.com/albums/v233/jster28/1-1.jpg

p.s.
I'm not looking for the answer, but some guidence on how to solve this problem. This is my first electronics class, so i'm kinda confused on how to solve this problem.

2007-02-07 10:38:54 · 4 answers · asked by Anonymous

Needed for a science paper. It says it can be either a ball-and-socket joint, a fixed joint, a hinge joint, a pivot joint, or a gliding joint. What is it?

2007-02-07 10:11:06 · 7 answers · asked by Anonymous

I myself want to hand-build my own houseboat, but in an exotic way. First of all, I want this boat to be shaped hexagonally; I am not exactly intending it to go much further then where I put it initially so what's the best way to anchor it?
Second of all, I want it to be almost excessively buoyant, so I can put lots of weight on it. Most of that weight will be soil, as I'm intending to make my own floating yard. The house itself will be built on top of this lot, what methods techniques would be best to ensure maximum buoyancy on a budget.
Third, considering construction time is no object but material prices are, what would be the best materials for freshwater/seawater hulls. I'm not sure if I want to live on a freshwater lake or off the coast. What materials are best for this construction?
Thank you for your time.

2007-02-07 09:24:59 · 2 answers · asked by Brian 2

An objecti weighin 5 pounds on Earth will weigh 2 pounds on Mercury. The Statue of Liberty weighs 225 tons. Wat would it weigh on mercury? ton ton but i want the answers in pounds

2007-02-07 09:15:32 · 2 answers · asked by BlackIce Mikel 3

A common-emitter transistor amplifier has a base current change of 15 microamperes and a collector current change of 200 microamperes. The load resistance is 50000 ohms with an input resistance of 1000 ohms.

Calculate the AC alpha, AC beta, AC voltage gain and power gain of this circuit.

2007-02-07 08:04:18 · 2 answers · asked by Anonymous

i was told that it's not a shell and tube heat exchanger... any ideas?

2007-02-07 07:52:13 · 3 answers · asked by asta 1