Engineering - March 2007

2007-03-03 12:24:51 · 2 answers · asked by Anonymous

2007-03-03 12:21:15 · 2 answers · asked by pete27male 1

2007-03-03 12:07:55 · 1 answers · asked by smiley25 2

This is for science homework.

2007-03-03 11:57:06 · 3 answers · asked by Spice 1

i need to know how many volts are in a lemon but i dont know what to set the multimeter to can you help.

2007-03-03 11:29:50 · 3 answers · asked by Anonymous

2007-03-03 11:11:51 · 1 answers · asked by bowland21 1

2007-03-03 10:27:31 · 5 answers · asked by Anonymous

2007-03-03 10:09:38 · 6 answers · asked by Lucky 1 2

2007-03-03 10:08:38 · 3 answers · asked by montay5 1

to a point where that was the only thing to make them run

2007-03-03 09:02:50 · 5 answers · asked by sea_sher 5

What does a single logic gate look like?
Are they the source of technology (do they make up computers)?
are they things with 1's and 0's?

if any of these questions can be answered by you, please tell me.

2007-03-03 08:35:38 · 5 answers · asked by Russly F 3

I want to operate two induction machines (first one 45KW second one 90 KW), using a threee phase iverter bridge consisting on 6 IGBT's (each with an anti-paralalell diode connected). To control the engine speed I'm using pwm techniques to switch on and off the IGBT's. I want to know the IGBT's rating (max power, max current, max voltage, remember these are IGBT's with an integrated anti-paralell diode), the maximium frequency of commutation of the IGBT's and the magnitud of the direct voltage alimentation of the inverter bridge, all that to minimize the power loses and to make the bridge as cheap as possible.

Two different set of ratings, one for a bridge intended to connect the 45Kw induction machine, and the other to conect the 90Kw machine.

Remember as cheap as possible and with the less power loses as posible.

2007-03-03 08:13:17 · 2 answers · asked by carlos h 1

2007-03-03 07:54:41 · 3 answers · asked by crazy 2 1

I need to know where to send my scetches of my invention so that somone can invent it. I really need an address to send it to. Please Help me!

2007-03-03 07:35:20 · 1 answers · asked by Anonymous

I made a electro magnet out of a 12 inch spike and coiled 10ft of thermostat wire which is about 20 gauge. I'm running 8.9 volts to it and I think to to many amps. What could i add to the circuit to prevent it from burning?

2007-03-03 06:58:37 · 4 answers · asked by Jim572 1

i wanna study amie in electrical department

2007-03-03 06:49:30 · 1 answers · asked by guna sekar 1

I would like to know - how to calculate the voltage output of a system that uses 4 amplifiers with gains of 100, 30, -15 and 8 dB( respectivlely),

The input voltage is 10 micro volts, what is the voltage output at each stage (Va, Vb, etc after each amp)

I would like to know the formulae for doing so and an explination of the units used within the calculations.


Thanks

2007-03-03 06:14:56 · 4 answers · asked by pleselpmeh 2

one air compressor use 3kw or 4 hp to make 360 L air whit 10bar
( 6 L10 bar /s) is it possible to use the air proudaced as a power Agni . if youre answr is yes how meny % of the ferst powe has used shod be .

2007-03-03 06:09:03 · 2 answers · asked by bahram g 1

I'm a student in Electronics.

2007-03-03 05:45:20 · 5 answers · asked by arunlalsl 1

2007-03-03 05:21:46 · 4 answers · asked by LouLou 4

if so , what wou be the delay ? because even i minute may make exit for another hundred victims

2007-03-03 05:10:58 · 9 answers · asked by livefast_dieyoung 2

2007-03-03 05:07:13 · 5 answers · asked by Keith M 1

2007-03-03 05:05:34 · 8 answers · asked by Zefram 2

2007-03-03 04:58:35 · 7 answers · asked by livefast_dieyoung 2

2007-03-03 04:58:09 · 1 answers · asked by livefast_dieyoung 2

"Here's a remarkable video shot from the cockpit of a radio-controlled airplane. The camera's video is transmitted to the flyer on the ground below, who's wearing VR goggles. When he moves his head, the remote camera's pans and tilts correspond exactly to his movements. The result is a extraordinary feeling of actually being in the plane" via Gizmodo

Video on: http://gizmodo.com/gadgets/gadgets/remote-flying-with-vr-goggles-and-a-camera-202964.php
---------------
SO HOW DOES THIS WORK?

2007-03-03 03:44:27 · 1 answers · asked by Youngboss 3

2007-03-03 03:39:20 · 12 answers · asked by hamid 1

The moisture of the soil is very hard to maintain. It affects the results of the test causing a huge inaccuracy in the results. In order to prevent any modification/cheating of the results, I need to have a very good way to contain the moisture in the soil in the TR mould.

2007-03-03 03:25:59 · 2 answers · asked by queenLiyn 1

2007-03-03 03:10:23 · 4 answers · asked by Abhilash 1

what is kW & how much is an unit

2007-03-03 02:14:02 · 3 answers · asked by Anonymous