Engineering - May 2007

Answers would be gratefully appreciated!

2007-05-30 16:54:16 · 6 answers · asked by Anonymous

the level to a turning point should usually be how many feet?

2007-05-30 15:11:55 · 3 answers · asked by simba22 1

is it possible to find a relay that can handle up to 120 volts ac and the coil is triggered by only 5v dc.if so how could i get it wired safely i would know how to wire it but like should i make pcb or just solder the ternimals

2007-05-30 15:09:02 · 3 answers · asked by ? 2

Wind - - Renewable
Hydro - - ??
Solar - - Renewable.. I think
Nuclear - - Nonrenewable..right?

Then I also have a question on my test tomarrow that asks what energy conversions would be with pushing a chair across the room. Can you help?

2007-05-30 14:41:00 · 4 answers · asked by Anonymous

I was given 20 pkgs of microwave popcorn, and this ancient microwave won't pop it!

2007-05-30 14:11:21 · 4 answers · asked by ladyfox2954 1

Why can't motors be made out of magnets?

2007-05-30 13:34:41 · 4 answers · asked by Anonymous

I am supposed to create a container that will keep an ice cube solid for as long as possible and i want to get the best score possible and i need design ideas

rules:
1. Container must be smaller than 25 centimeters on any side
2. Container must be created specifically for this event. It cannot be a container made to keep objects cool or hot. Ice coolers, styrofoam cups, thermos, etc. are not allowed in their original form.
3. Container must be able to hold any water from the melting ice-cube.
4. No electrical motors or similar devices allowed.
5. Container must be easy to load and check.
6. No part of the container can be frozen prior to the event. This includes water, other ice cubes, dry ice, or other chemical substances.

2nd Question: do you think that #6 includes liquid nitrogen?

2007-05-30 12:54:54 · 4 answers · asked by flipflop_ello331 1

PLZ HELP:combinations: what is the result of dividing a 'n' factorial by another m factorial? PLZ HELP ME PLZ
like in the question in which we have to get identical pairs of a group 3p
answer: 3p!/( (p!)^3*3! )

i would PREFER i logical explanation

i wanna know why we actually divided by 3!..what was the significance?
what does it do: explain WITH LOGIC

2007-05-30 09:01:03 · 2 answers · asked by globalami 2

less than 50 lbs.w/ remote detonationvia servos

2007-05-30 08:50:46 · 10 answers · asked by Anonymous

Explain to me why the glass doors on microwave ovens are shielded with a microwave resistant coating?!?!?!

THANKS!

2007-05-30 08:23:15 · 3 answers · asked by g2dalemon2dasqueezy 1

2007-05-30 06:59:19 · 8 answers · asked by katre_kedar 2

I want your openion.

2007-05-30 06:41:58 · 1 answers · asked by Anonymous

i am wanting to get my degree in civil engineering but i am struggling in my pre-cal trig class...i enjoy the math that i understand and love science..i really want to be an engineer but im really stressing about all of the math im going to have to take (not that im am moron, ive been able to keep a b or c average in my math classes but those are my worst grades in college) I was wondering what kinds of math i will most likely use on the job...thanks

2007-05-30 06:20:12 · 8 answers · asked by Mrs.BEll 2

like satlite tv

2007-05-30 05:50:00 · 7 answers · asked by Anonymous

2007-05-30 05:05:02 · 9 answers · asked by Anonymous

2007-05-30 04:29:52 · 1 answers · asked by Anonymous

2007-05-30 03:52:27 · 5 answers · asked by Mukesh Dak 3

2007-05-30 03:51:43 · 5 answers · asked by *Seriously* 2

i want to run things i own on solar power. where can i buy these parts and how do i make it myself? thanks

2007-05-29 23:21:31 · 9 answers · asked by nonphysical 3

let say i have a bicycle chain,i chained my bike n lock it and suddenly without me knowing someone cuts the chain to take my bike away.the function is to make my chain with alarm sound out loud,when the chain is cut.so please help me design the circuit for this

2007-05-29 22:26:52 · 1 answers · asked by faizan k 1

wearing course

2007-05-29 19:13:29 · 3 answers · asked by Philip N 1

2007-05-29 18:36:28 · 4 answers · asked by balaram b 2

i want to know about second moment of area

2007-05-29 17:41:52 · 1 answers · asked by irfan Ullah 1

Hi i am currently in high school and will be graduating soon I have already been accepted by my college. I was wondering what is the difference between electronics engineering technology and electronics engineering. I was also wondering where can these take me and what kind of job and work place i can be looking forward to. I was also thinking about after finishing
my 3 yr program to go to college for 2 yrs to get a BA in Engineering in ether electronics or electrical engineer. I am really interested in telecommunications,wireless communication anything of that nature and building and designing circuits to do something like make a robotic bug. If any1 could help me with this it work be greatly appreciated.

Thanks

2007-05-29 17:22:54 · 4 answers · asked by Anonymous

And have it to be smaller then a deck of cards?

2007-05-29 17:17:55 · 3 answers · asked by zomgitsdrawn 2

2007-05-29 16:51:09 · 10 answers · asked by spidaman_10 1

I have heard that solar activity can cause power outages. Is this due to the movement of ions inducing the power lines?

If this is the mechanism, then would it be feasable to engineer a device to harvest this energy?

2007-05-29 16:21:52 · 7 answers · asked by Corn Fused 1

I am strapped for ideas. Been thinking for two days. I havent slept yet...Basically I need some help figuring out a project. If someone can send me a link to a page that gives me any info on Hydraulic stuff. That uses air or water (I guess im repeating myself...) I mean not info but ideas on what to make. Like something that shows you the principles on Hydraulics and how to make something that will show these principles. Thx in advance all you people who have slept :p

2007-05-29 16:08:54 · 3 answers · asked by Tinface 2

A. Insulation
B. Porosity
C. Conductivity
D. Converction

2007-05-29 15:00:28 · 6 answers · asked by keaira t 1

The tones are pretty loud, and sound like a resonating tube. The pitch is mid range (like middle C +- 2 octaves). I'm pretty sure this is a sign I need to replace it, but anyone know what could cause this?

2007-05-29 14:33:04 · 3 answers · asked by professional student 4