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Engineering - August 2007

[Selected]: All categories Science & Mathematics Engineering

basically testing right?

2007-08-21 19:59:39 · 1 answers · asked by HoHoHo 1

2007-08-21 14:55:09 · 7 answers · asked by jetman22003 1

2007-08-21 14:24:05 · 6 answers · asked by Anonymous

Construct a truth table for ~(p v q)
Please work out.

2007-08-21 12:08:51 · 1 answers · asked by Tim M 1

I'm doing a paper on a CNC turning center and I can't find any information what so ever. Please help.

2007-08-21 11:53:37 · 3 answers · asked by The Wraith 2

I want to make a robot where when you touch the robot with a control device.. like a remote.. the remote is powered by the robot itself enough to allow you to push the buttons sending the signal to the robot telling it what to do.. does anyone know of anything like this? I am trying to search for this but can't find anything...

2007-08-21 11:18:58 · 3 answers · asked by Anonymous

Does it matter if i install the panels in series or in parallel? i already know abput the batteries but i'm not sure if it matters with the panels too.

2007-08-21 09:45:35 · 7 answers · asked by Anonymous

How many voltage pulses would occur in each of the following for a HALF-WAVE-RECTIFIER?
a. 20 msec
b. 1/40 sec
c. 500 msec

2007-08-21 09:26:48 · 1 answers · asked by Anonymous

some time in our lifetime do you think genetic engineering will be able to create new animals like that from mythology or stories (hippogriff, unicorns,etc) no stupid answers please

2007-08-21 09:07:54 · 5 answers · asked by ecoli 2

2007-08-21 08:47:27 · 2 answers · asked by Engr.Rizi 1

What does this mean analytically and what can we deduce from that information.
Can sound pressure level deduced from that .If not what do we have to do to get that done.

2007-08-21 08:08:53 · 11 answers · asked by Anonymous

A reading was taken with the temperature on an antenna I was testing, the temperature gun uses an InfraRed thermometer. I would get temperatures in upwards of 280 degrees farenheight while transmiting, and temperatures of around 110 degrees farenheight while not transmitting (wich was normal). Does anyone have a theory for why this would happen?

2007-08-21 08:02:23 · 2 answers · asked by Manuel P 2

I am currently enrolled in an automation and control class at a local community college and I would like to know the answer to this question so that I may better understand the material.

Thank you in advance for any answers.

2007-08-21 06:37:17 · 7 answers · asked by Fable of Flame 2

1. Physical Chemistry
2. Heat Transfer
3. Fluid Flow
4. Thermodynamics (second semester, although a good book that covers the topic period would be very helpful.)

I don't want solutions manuals specific to my books, because I know myself and I wouldn't really work through the problems so much as convince myself in my head that I understand it. I'm really just looking for good solutions manuals with in depth answers given that will serve as a sort of guide with the homework in these classes. Thank you for any help you can provide!

2007-08-21 06:16:46 · 2 answers · asked by Sarah G 1

2007-08-21 04:22:13 · 4 answers · asked by dinesh 1

what is the square root of this.
0000000001100100 * (0000000001100100 / 0000000000001010) answer to 13 decimal places

2007-08-21 04:07:13 · 7 answers · asked by emc.squared 1

2007-08-21 03:59:08 · 7 answers · asked by chato r 1

I have a 7.5 amp 115 volt AC motor, that I plan on running from a 12volt DC battery using an inverter.

http://www.dcacpowerinverters.com/itemdesc.asp?CartId={BF4E353E-9C78EVEREST-403C-B331-1D16835C5F18}&ic=PW900-12

My 12volt battery says that it has 5 amp hours, so does that mean I wouldn't be able to run the motor? If not, or if I could only run it for a short time, what would be a better solution for a fairly cheap battery system to power this motor?

2007-08-21 03:48:56 · 4 answers · asked by sgfan93 2

Seriously, do your own little fire
experiment at home.

Make a little steel bridge or a steel
structure, and overload it so much with
bricks or dead weights, to the point
where it is just about to give way and
completely collapse... Go on... like this:

Use a 2 or 3 mm thick steel bar or flat,
you can buy this from any hardware
store. Hold it up at both ends with bricks
at both ends like the picture below:

...........BBBB
...........BBBB
__________________
BB.........fire........BB
BB.........fire........BB

(B = Brick, ignore the dots)

The steel bridge is indicated by ______

Now use steel or aluminium baking tray
underneath the bridge, filled with jet
fuel, or kerosene, and light it up with a
burning newspaper.

Burn it for as long as you like in open
air, and see if your steel bridge will
collapse due to being weakened by
exposure to air fire.

Seriously, try this experiment at home!

Use as much fuel as you like.

Does it collapse?

2007-08-21 03:02:57 · 10 answers · asked by Anonymous

I design a circuit in a MaxPlus or write a Verilog codes for FPGA and I want to test my design circuit in a virtual world like testing Microcontolers in Proteus software.
How can I do it ? And do any one knows any software for this purpose ?

2007-08-21 02:04:54 · 1 answers · asked by favori3 1

I work in a small store front gym in a large city, and we have 3 floors of residential apartments above us. I was wondering if it's possible to harness the energy produced by the members using our cardiovascular equipment, and then turn it into usable power for the residents above us. The thought is part of a larger picture, building 3-story apt. buildings with healthclubs on the first floor, where the building is totally powered by the output of the gym patrons. Not only would this provide an alternative to oil-dependency, it might help with that whole obesity thing that we seem to be suffering in this country. Maybe gym membership would be complimentary to residents, or utility bills would be variable, depending on the amount of time spent in the gym, working out. What do you think?

2007-08-21 02:02:04 · 5 answers · asked by michael m 2

This is a question that I've been pondering for years. I was once told that they are there to warn low flying aircraft, but this doesn't really make sense because their use seems so random. Some wires have them, and some don't. Sometimes they appear near airports, and sometimes they don't. So, if your answer is "...to warn low flying aircraft..." I'd appreciate some explanation as to exactly how their use is decided/regulated.

I'd also like to know the technical name for the 'balls,' if there is one, so that I can do research to check the answer myself.

I don't know if this is the right section for a question of this type. I guess I'm hoping that an engineer at a power company will see this and be able to shed a little light on it for me.

Thanks.

2007-08-21 00:44:01 · 4 answers · asked by Harry M 2

I am aware that radio or television static is caused by backround radiation or something(more info on this would also be good).

How could I harness this, and what electrical components would I need?

2007-08-20 23:49:42 · 3 answers · asked by worried person 1

In Physics

2007-08-20 23:20:02 · 7 answers · asked by chitha 1

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