Engineering - April 2007

2007-04-30 22:56:10 · 6 answers · asked by hwyhogg 1

Example: How many watt per hour in 1000 mAh?
Also include the volts and many other electrical symbols...
Thank you very much!!!

2007-04-30 22:47:16 · 3 answers · asked by Rowelto Jr. 1

plz help.... its urgent

tomorrow i have to submit an assigment and i hav a dherrea.

if u can plz

2007-04-30 22:32:29 · 2 answers · asked by Ahmed Ejaz 1

...bomb? (or Atom / Hydrogen bomb)

Ok, we know the wheatstone bribge is used for measuring resistance, but if we didnt have it, would it still have been possible to explode Plutonium/Atom/Hydrogen bombs....

2007-04-30 22:28:29 · 2 answers · asked by Jim P 1

Can a inverter with 24V battery charge another 24v from 25% or less capacity to100% ,while I use other home appliance using the same inverter..

2007-04-30 21:34:29 · 4 answers · asked by Saravanakumar. S 1

2007-04-30 21:18:11 · 8 answers · asked by Anonymous

end is 2.5m of liquid. The loss of head in tube is 0.35*(v1-v2)^2/2g, where v1 is the velocity at the smaller end & v2 at the lower end. Determine the pressure head at the lower end. Flow take place in the down ward direction...( question of fluid flow operation..related to chemical engg..)

2007-04-30 21:17:28 · 1 answers · asked by Rohini S 1

2007-04-30 20:53:48 · 3 answers · asked by liuyrr 1

for weak nitric acid we req zirconium msterisl but for concentrated one ss316 or for 99% aluminium req.

2007-04-30 18:52:04 · 1 answers · asked by dattatraykolte 1

My second grader has a project to make a parachute with an egg attached and to drop it from 10 feet high and make it land. Any suggestions for the best possible materials to use and the design?

2007-04-30 17:44:22 · 4 answers · asked by tornapoart 1

The index of refraction for silicate flint glass is 1.66 for light with a wavelength of 400 nm and 1.61 for light with a wavelength of 700 nm.

Find the angles of refraction for light of these wavelengths that is incident on this glass at an angle of 45 degree.

2007-04-30 16:49:20 · 2 answers · asked by hpage 3

A transformer has 400 turns in the primary and 8 turns in the secondary.

(a) Is this a step-up or a step-down transformer?

(b) If the primary is connected across 120 V rms, what is the open-circuit voltage across the secondary?

(c) If the primary current is 0.1A, what is the secondary current, assuming negligible magnetization current and no power loss?

2007-04-30 16:28:20 · 5 answers · asked by hpage 3

If you had a generator supplying electricity to some appliances connected in parallel, would you expect any change in the generator as more appliances are turned on?

2007-04-30 16:03:08 · 2 answers · asked by Anonymous

Electricity is supplied to the armatures of generators through brushes & rings. Why can't continuous wires be used for this purpose?

2007-04-30 15:43:13 · 2 answers · asked by Anonymous

2007-04-30 15:16:55 · 1 answers · asked by SprintinGGoaT 2

I want to patent it and take it to investors what do I need?

In terms of diagrams, summary, etc...

2007-04-30 15:00:46 · 4 answers · asked by bboyballer112 2

2007-04-30 14:58:19 · 4 answers · asked by purple blood 2

I saw a reference about cutting a hex nut in half to use it to put threads on a wooden dowel. Short of buying a manual wood threader, is it possible to make a shop made wood threading device?

2007-04-30 14:21:17 · 2 answers · asked by Anonymous

2007-04-30 13:44:28 · 3 answers · asked by Vanessa L 1

We all know that electricity can be used to generate heat by introducing resistence in its path, however when it comes to generating electricity from heat there is no straight way for that (or atleast I am not awre of one). All coal plants will use water to generate steam that will drive turbines to generate electricity. Same is the case for nuclear power plants. Is there no way for us to generate electricity in one step? Wouldn't that be a lot more efficient?

2007-04-30 13:43:36 · 6 answers · asked by Vijay P 2

I need a really simply, and small, amplifier (and high output) for any signal/audio;
can I do it with just a transistor and battery?? thanks

2007-04-30 13:17:04 · 5 answers · asked by David H 1

2007-04-30 12:58:01 · 3 answers · asked by yodahamani 1

2007-04-30 12:55:40 · 1 answers · asked by Alma O 1

2007-04-30 12:38:32 · 1 answers · asked by otto 1

The composition of the hull of a submarine is mostly iron. Pieces of zinc, called "zincs", are placed in contact with the hull. Why is this done?

2007-04-30 12:21:51 · 3 answers · asked by calculusgirl1979 2

in Canada

2007-04-30 12:02:55 · 2 answers · asked by Joey G 1

A lot of air is getting into the cooling water of the Hamworthy air comp. The water pump and suply apears to be in perfect condition. Could there be a leak in the first stage liner ????
Any other ideas ??? She has to be blead for ^ seconds every 20 minutes!!!

2007-04-30 11:58:23 · 1 answers · asked by peter m 1

2007-04-30 11:26:19 · 4 answers · asked by anonymous 1

I heard that the classes are just classes to weed the real engineers out and scare the other ones off, is this true?

2007-04-30 11:19:32 · 2 answers · asked by Anonymous

It is an extra credit question for my science class. We are currently learning about the center of gravity/balance if that helps. Thanks!

2007-04-30 11:17:20 · 4 answers · asked by flmumb 1