Engineering - December 2007

2007-12-25 14:41:23 · 4 answers · asked by neha m 1

I excell in chemistry, math, and physics... However, chemistry is my passion. What would you do, persay, in a normal workday?...Please, any actual engineers offer your opinions...thanks.

2007-12-25 14:20:44 · 2 answers · asked by take 5 1

At present am working in Singapore under S - Pass

2007-12-25 13:32:37 · 3 answers · asked by Arun Kumar 1

i'm doing some extensive research about solar panels because i'm an inventor and i have an idea about creating a more efficient solar panel, but i'm having trouble finding out where to buy the different parts i'll need. can someone help me with this puzzle? thanx, Al

2007-12-25 13:10:40 · 5 answers · asked by Al B 1

2007-12-25 08:08:50 · 4 answers · asked by f50 1

I have trouble believing that this is possible. I found this link on some web page ( http://www.xolllab.com/ ) they claim to have invented x-ray glasses. I honestly don’t know anything about the technology that would be required for something like this. I do know that with some camcorders it is possible to see through things when the camera is in night vision mode. So are the glasses real or not? What do you think?

2007-12-25 08:00:49 · 5 answers · asked by Dan N 1

compare with Edison's?

2007-12-25 07:53:01 · 10 answers · asked by Anonymous

a)What is 0.000742 in units of microjoules?

b) What is 5.84x10^9 g in units of megagrammes?

2007-12-25 03:12:55 · 4 answers · asked by Jerome D 1

the signals in general are a form of energy ..ie they can be transferred from one form to another but not desroyed nor created..so what happens to signals that are not recieved ???do they stay in air???or is there noise interfernce???Can we hear the song played at a particular station 5 days or say a year back by tuning it at same frequency today???if not why???

2007-12-25 02:52:09 · 6 answers · asked by Anonymous

a) What volume of water was produced?
b) What volume of carbon dioxide was produced?
c) What assumptions have you made in the above calculations?

2007-12-25 02:13:49 · 3 answers · asked by Jerome D 1

2007-12-25 00:37:49 · 3 answers · asked by kumar K 1

2007-12-25 00:07:32 · 6 answers · asked by Rao 1

I was watching a movie recently (the title is slipping my mind) and there was a scene with a business jet that was climbing vertically. I made the comment that it was impossible for a consumer level jet to perform such a task due to their low thrust to weight ratio, and the lack of rigidity of their airframe. I'm fairly confident that a business jet can't produce enough power to overcome its own lift and the force of gravity, and even if it could, its airframe would suffer catastrophic failure. I then furthered my argument by stating that some jets are able to CLIMB vertically, but to my knowledge there is only one jet that can ACCELERATE vertically: the F-16, due to its thrust-to-weight ratio greater than the value 1. Am I correct in every aspect of my knowledge? Can business jets CLIMB vertically? Can business jets ACCELERATE vertically? Are there other jets besides the F-16 that can ACCELERATE straight vertically? Easy 5 stars.... Thanks for the help!!!

2007-12-24 23:32:16 · 8 answers · asked by mike 2

2007-12-24 21:21:09 · 4 answers · asked by kedarnath s 1

2007-12-24 19:36:22 · 2 answers · asked by flameofthewitch 2

Does anyone know why batteries (car, m/c,tractor) go dead if placed on concrete, but can last months on a shelf?

2007-12-24 13:12:41 · 5 answers · asked by areyouserious? 3

Here is the problem: last year, the letters page in a national newspaper carried a long running story over a comment regarding the interpretation of the second law of thermodynamics.

The orignial comment that generated the letters was:

The theory of evolution violates the second law of thermodynamics; this is because the theory of evolution predicts increasing order over time, whereas the second law of thermodynamics predicts the opposite.

state whether you agree or disagree with the comment. Give detailed reasoning

Cheers!

2007-12-24 10:53:55 · 7 answers · asked by Anonymous

My antigravity propulsion engine consists of four electric motors,that are out of balanced by weight and silver wire,for increaced electric flow on one side.On the top and bottom of the motors I have a gyro with the magnets to force the motors down and semi stall them on the way up,creating upward lift on the device.Were do I go with this?Do I make it public knowledge till some agent buys me out?

2007-12-24 08:00:13 · 6 answers · asked by Anonymous

I'm a thirteen year old girl in the nineth grade... i'm looking for classes and stuff to get started on my career goal as an aeronautical engineer... I would like to start taking online classes and stuff now, if you have any ideas on starting my aeronautical engineering goals please let me know... thanx and happy holidays.

2007-12-24 07:03:34 · 6 answers · asked by amber211 2

I forgot, and yes I am so dumb.. But when smoke from them squares seeps through doorways, is it comin' in from the top, bottom, and side? or generally just the top.
I'm wondering how many towels to shove around this door to my apt.

2007-12-24 06:28:12 · 10 answers · asked by Anonymous

2007-12-24 05:24:37 · 4 answers · asked by timothyjosephming 1

what does an outside temp of 35 deg. and dropping do to a unit that uses a fan to remove heat at the condenser? Increase, decrease efficiency? nothing at all? as prescribed?

2007-12-24 03:22:00 · 3 answers · asked by bblanco 1

by sudhar

2007-12-23 18:10:03 · 5 answers · asked by sudhar 1

hey , in dc genarator we rotate armator where as in alternator why we make field to rotate , why this difference ? can u explain ?

2007-12-23 17:11:49 · 8 answers · asked by patlegar 1

Sir, Is there any defination of "Pi"?If no then is it possible to define"Pi"?If no Then will u please help me for my thinking that
in case of circle
P=2*("Pi") R
"Pi"=P/2R
"Pi"=P/D
Does it mean that if we break a wire circle and make it straigth line then there is relation between the length of wire and diameter of circle?, then is it possible to define "Pi"?
If we make diameter perpendicular to wire line then the relations of that rightangle triangle,do they have any important relations in aerodynamics? i am mechanical engineer, finding technical answer for this question.Please help me........Thanking you.........Avdhoot B.(09822549363) INDIAN

2007-12-23 16:45:16 · 6 answers · asked by Avdhoot B 1

i have been assigned to design an AB class audio power (for the final project of a basic course in electronics)amplifier using Opamp : 741 , power transistors BD137,138 , a 12 v. supply , load resistance 8 ohm , voltage gain of 40 dB and cut-off frequency 20 Hz. desperately needing help ! where shall i begin?!

2007-12-23 15:29:48 · 7 answers · asked by noushin 1

2007-12-23 15:14:58 · 2 answers · asked by dustinthewind421 1

2007-12-23 14:26:41 · 6 answers · asked by mike 1

2007-12-23 13:43:47 · 8 answers · asked by Anonymous

2007-12-23 13:17:18 · 4 answers · asked by Professor M 4