Engineering - October 2007

please show work i really dont know how to divide it by hand and i have never messed with kilos befor?

2007-10-24 09:28:56 · 3 answers · asked by boredTOdeath 2

2007-10-24 09:24:53 · 10 answers · asked by Anonymous

What size cable would one need to supply 400 amperes, 380v 3phase 60 Hz at a distance of 1000 metres? Or is it better to go to transformers and high voltage. All power is by way of gensets. Right now we have numerous gensets on this farm. All are critical power scenarios. Any advice is very welcome. Cheers.

2007-10-24 09:03:44 · 5 answers · asked by kelvin s 1

2007-10-24 08:49:08 · 3 answers · asked by Suzanne B 1

I have Crest® SpinBrush® - SpinBrush Pro Recharge toothbrush. My question is how does it recharge if there is no metal contact between the base and toothbrush?.Plastic is between the base and toothbursh.

2007-10-24 08:42:02 · 4 answers · asked by myzzjuli 1

Did Claude-Louis Navier and George Gabriel Stokes came up with their equations which accounted for viscocity by studying each other's "money shots?" I mean, there is very valuable data to be had there and I just wonder if they took it into consideration. Or would the difficulty in establishing a constant velocity render it moot?

2007-10-24 07:37:42 · 8 answers · asked by ZombieTrix 2012 6

I have a great interest in solar panel technology, and would like to find a school specifically geared twoards that technology. so I am assuming that I could get a degree in this area in a two to four year schooling experience. Are you or do you know anyone who is trained in this area? How do I get educationional information about such schools or institutions?

2007-10-24 06:58:47 · 1 answers · asked by rdcatman 3

In winter air condition condenser take ice especial wen the temperature is coming under zero degree
and the heating is decrease inside.
why?

2007-10-24 06:28:27 · 2 answers · asked by khalil c 1

2007-10-24 05:22:49 · 6 answers · asked by lupenorm 1

2007-10-24 05:05:46 · 6 answers · asked by mangal 4

it is just a question

2007-10-23 22:45:09 · 10 answers · asked by Anonymous

A mass, which is connected to a string, is placed on a frictionless surface. At the end of the string there is a 1N weight. The string is guided by a frictionless pulley, so that the 1N weight is suspended on air and it is not in contact with any surface.

a) What must be the tension on the string so that the mass slides on the frictionless surface at a rate of 1.45m/s^2?

b) What is the value of the mass if the tension of the string is found to be 1.5N and the mass is now at rest?

2007-10-23 19:54:00 · 2 answers · asked by Anonymous

2007-10-23 15:29:57 · 7 answers · asked by kei-kei 2

2007-10-23 14:52:02 · 2 answers · asked by jcd3x 1

Hi. Does anybody knows a good freeware that allows to draw basic electric circuits. I only need stuff like resistors, switches, etc.

Thanks!

2007-10-23 14:49:56 · 4 answers · asked by Kanbei 1

2007-10-23 14:11:29 · 5 answers · asked by And i heard as it were a thunder 6

Someone said that foil is an insulator, but i thought aluminum foil DO conduct electricity. I remember doing labs in elementary school with foil to turn light bulbs on.

2007-10-23 13:42:00 · 10 answers · asked by sAviOr 1

man! i forgot to turn off my iron This morning and I thinking about the light bill

2007-10-23 12:13:36 · 3 answers · asked by raysjullio 1

2007-10-23 12:12:31 · 1 answers · asked by bob m 1

Hello all again, well i am having a problem with motion. Here is the problem. You want to know how high a bridge is, so you go out to the middle of the bridge with a stone and a stopwatch. You drop the STONE over the side. It hits the water 4.6 seconds later. How high is the bridge?

OK well at first i was just thinking of multiplying 9.8m/s(2) and 4.6(s) but i don't really think that is right and this is where i am kind of stuck now. Can anyone help?

2007-10-23 11:48:46 · 2 answers · asked by Anonymous

you can find the problem here: http://www.geocities.com/shinryuken18/assignent.jpg

i am trying to find out how to solve for R6 or if the resistor is even to be included in the problem. i'm trying to find the voltage and current through each resistor

2007-10-23 11:25:29 · 2 answers · asked by shinryuken18 1

The key way is worn on my motor and a the standard 1/4" key will no longer hold the load without play.

What is the best way to cut a new keyway on a motor?

2007-10-23 10:19:55 · 1 answers · asked by That Guy 4

plz give me this answer of this math

2007-10-23 10:15:05 · 2 answers · asked by Anonymous

2007-10-23 09:45:14 · 7 answers · asked by Anonymous

Example: Flow=0.15 cfs, slope = 0.77%, n=0.010, pipe size = 5.66 inches diameter and 8-inch diameter.

2007-10-23 09:28:19 · 9 answers · asked by Chad M 1

2007-10-23 09:15:26 · 2 answers · asked by will_hotze 1

2007-10-23 08:16:12 · 4 answers · asked by aleksandar_gargi 1

If compare the lead acid and sealed acid batteries,which are suitable for power substation

2007-10-23 08:11:11 · 1 answers · asked by Aseman 1

How can I correlate the lifetime of a spring relative to the percentage of it's elastic limit that the spring is expected to cycle through? Is there a rule of thumb or is can find a function that relates lifetime versus percentage of elastic limit? Thanks.

2007-10-23 08:03:07 · 2 answers · asked by mrlexington 2

2007-10-23 07:30:31 · 3 answers · asked by stevo 1-2 1