Engineering - November 2006

i would like to know about the relations used to solve design related problems for a given n-element yagiuda antenna and how to find the no. of directors in it.

2006-11-03 17:01:55 · 1 answers · asked by ganesh_somisetty 1

2006-11-03 16:57:14 · 6 answers · asked by satheesh k 1

2006-11-03 16:45:45 · 1 answers · asked by stefan m 1

I want to design solar panel with high efficiency by facing the sun for maximum heat absorption. Since different place has different sunrise and sunset time, the position differs. Help me.

2006-11-03 16:35:38 · 5 answers · asked by mectiff 2

2006-11-03 16:33:43 · 5 answers · asked by Anonymous

I would really like to buy a 2N3053 transistor but no local store has it :(. I'm sure there are equivalents but I can't find any... Could you help please?

2006-11-03 14:54:33 · 2 answers · asked by Anonymous

i was hammering really hard on a piece of steel in my vice, really wailing on it so it would bend, then all of a sudden awhen i struck it a magnet sitting on the workbench about a foot away exploded into several pieces!!

the magnet is a thin ring speaker magnet about 2 inches across and covered in steel filings

and i didn't touch it with the hammer, but my whole workbech was vibrating apart

2006-11-03 14:18:33 · 6 answers · asked by Anonymous

Anything would help; plans, advice, personal experience. etc...

I would like to build three - for grapes, oranges, and pumpkins/watermelons (in that order)

2006-11-03 13:38:45 · 4 answers · asked by Redcap the Druid 3

2006-11-03 12:56:04 · 6 answers · asked by naif_tees 1

Please explain.

2006-11-03 11:41:44 · 4 answers · asked by Love Patience Peace and Kindness 1

2006-11-03 11:39:49 · 5 answers · asked by The Apostle 2

2006-11-03 11:39:03 · 4 answers · asked by Thomas P 1

If I was going into Aerospace engineering, what classes would I have to take through my sophmore to senior year of college, I already know what I'm going to be taking my freshman year, but I thought I'd get an idea for the last three years of college as well. Do you guys know?

2006-11-03 11:13:55 · 4 answers · asked by Loved By Someone Above 4

A) the potential energy to move charged particle
B) the movement of charged particle
C) the potential energy to move any particle
D) movement of any charged particles

2006-11-03 11:02:41 · 7 answers · asked by Anonymous

2006-11-03 11:01:14 · 1 answers · asked by jmcgraw1975@sbcglobal.net 3

Any math people out there? Do i just divide by twelve? hmmmm...

2006-11-03 10:17:11 · 3 answers · asked by Brian 1

Do you know if professional engineers have a organization that I can contact?

2006-11-03 09:17:14 · 9 answers · asked by Anonymous

I know there is some kind of formula using how wide and long the room is, but need to know how to use it...

2006-11-03 09:14:08 · 3 answers · asked by J P 1

will the first motor work like a generator if spun backwards--if so, how much power would it generate?

2006-11-03 08:42:38 · 4 answers · asked by Anonymous

2006-11-03 08:42:28 · 5 answers · asked by Jermaine 2

2006-11-03 08:31:56 · 1 answers · asked by zimmy 2

2006-11-03 07:50:29 · 7 answers · asked by debbie t 1

Someone gave me an old microwave at work. Whenever I run it, it completely wipes out the signal between my XM satellite radio receiver and my FM radio tuner, which I use to play the satellite radio music on. Is this a hazard to me?

2006-11-03 07:24:09 · 8 answers · asked by galacticsleigh 4

2006-11-03 07:22:26 · 2 answers · asked by Perfection 4

2006-11-03 07:16:36 · 1 answers · asked by Cheesey E 1

I'm thinking about learning to use the program AutoCad. It's looks somewhat difficult to learn, the book for beginner is about 1,500 pages. I haven't even counted the workbook and references. Anyhow, it will be learned if AutoCad is proved useful.

To all of the AutoCad users out there, do you think it's a good program to learn if I am the type of person who loves to customize things and or invent something?

For example, I would like to build a desk but lack the skill of a handyman. Don’t want to buy the desk because I dislike the designs. I would like to use AutoCad to create a blueprint of the designs and then send it off to a company that will help me cut, sand, and paint all of the materials for me and then all I would need to do is put it together.

Will AutoCad help me do this? If I am wrong, then what is AutoCad use for? Please help.

2006-11-03 07:15:31 · 8 answers · asked by Inquisit 2

2006-11-03 06:59:42 · 2 answers · asked by ale8alex93 1

with a radius of 0.499 m and mass of 10.1 kg is brought to an angular speed of 5.88 rad/s in 0.531 s by a motor exerting a constant torque. After the motor is turned off, the flywheel makes 26.8 rev before coming to rest because of friction (assumed constant during rotation).

What percentage of the power generated by the motor is used to overcome friction?

2006-11-03 06:27:39 · 2 answers · asked by Dee 4

can someone suggest a formula? where the variables are
v= velocity in m/s (what we want to know)
D=internal diamter of pressure vessel (mms)
L = length of pressure vessel
d= internal diameter of barrell (also i.d of valve leading to pressure vessel)
l = length of barrell
M = mass of projectile in grammes
P = pressure of pressure vessel in psi (which i will covert to bar....anyway know how to convert bar to pascals?)
T = time valve is open in seconds
the spud gun will consist of a pressure vessel storing compressed air, with a valve in front of it leading to the barrel. when the valve is opened air will be released pushing a projectile out the barrell
couls soem one build me an equation to calculate the velocity of the projectile using these variables? i see all these spud gun sites on the net and id love to know how fast they go...
also whats the speed of sound?

2006-11-03 06:01:13 · 3 answers · asked by mrx 1

2006-11-03 05:36:38 · 2 answers · asked by amit t 1