Engineering - December 2006

well, i'm doing this science project and i'm trying to build a flying device, so i need the weight of the materials:
here they are:
-styrofoam
-cardboard
-tissue paper
-propeller
-wood
each one should be 10 cm wide and 10 cm long...and you can choose how thick it is, as long as yu include that i n your answer...plz put it in a chart...i'm sorry i'm asking for alot but im desperate...plz answer ASAP! and if there are other materials you think could be used in a flying device, plz include it
thank yu so much

2006-12-10 15:01:32 · 1 answers · asked by Anonymous

I have been to Raccoon Mtn pumped storage for TVA in Tennessee where they can generate approx 1.8 MW and use it almost every day to shave peak load. Where are other units located and what ratings do they have?

2006-12-10 14:44:15 · 3 answers · asked by bkc99xx 6

This only happens with one tap in the house. I open the tap and the flow is strong. As the water becomes warm, the flow diminishes until it becomes a dribble when the water is hot. I must open the tap further to use it. It's like it is becoming blocked as the water heats. It happens irrespective of there being other taps being turned on in the house.

I have a large new gas hot water system that runs well. All other taps run normally.

Any ideas?

2006-12-10 14:25:22 · 4 answers · asked by Anonymous

2006-12-10 14:17:49 · 3 answers · asked by cari 1

I want facts to support my case to change recruitment policy in respect of women in the so-far-male-dominated "heavy engineering" fields .

Please restrict your answer to civil, mechanical, electrical power, chemical and aeronautical engineering. Electronics and computers (hardware and software) are out of this question's purview.

I do not want answers like : "Of course women are as good as men in every respect", though that may well be true. Your answer must be based on solid facts about real women who have proved themselves in these fields and risen to high technical managerial positions in their organisations.

2006-12-10 13:58:12 · 13 answers · asked by wisdom tooth 3

How is logarithm used in engineering and design?

2006-12-10 13:23:24 · 5 answers · asked by Mish 1

2006-12-10 13:08:52 · 2 answers · asked by Anonymous

Purpose: To design and build a DC motorized crane/ wench to lift a pile of paperclips

I must submit sketches of the design (this is so hard) ...and explain these questions:

what materials do u use and why ?
what design features will the crane have and why ?
how will the motor work ?

============Anyone can give me the answer for these cause I have no idea how to start or do it +_____+

Or you can give me the website to take a look at it

Thanks a lot for you guys time...I am really stupid in Physics...

2006-12-10 12:38:25 · 1 answers · asked by shiningheartinwinter 1

All i want to know is..........if i have no digital signal in my area..and i have no ordinary signal in my areal.(im in the uk)..How can i send my FREESAT SIGNAL to my pc in bedroom??....£1000 for the first reAL TOP ANSWER......................not

2006-12-10 12:15:11 · 1 answers · asked by Anonymous

if i want to increase a frequency do i increase, or decrease a resistor?

2006-12-10 11:42:07 · 4 answers · asked by Anonymous

please help me. i need search results for my science project. thank you!

2006-12-10 11:37:46 · 2 answers · asked by snowyangel 2

im looking for a converter type of site

2006-12-10 11:28:17 · 1 answers · asked by Anonymous

it can be like a airplane or car........and what materials do you use?

2006-12-10 11:20:01 · 3 answers · asked by Venus in Furs 5

I am a intern for an interior designer. I would like to know the standared mesurments for doors and windows because I do not know. I have done reaserch on google and found nothing! Please help me so I do not get fired!

2006-12-10 11:01:49 · 1 answers · asked by Reach for the Stars! 3

will it be easier or harder than college? like will you be solving equations and concepts on a piece of paper and sweat and have headaches or will you and some partners use a special computer with programs to do the job for you. im not saying it will be an easy job but will it be easier than studying at the library until 3 am in the morning trying to cram in 15 chapters for a physics final?

2006-12-10 11:01:26 · 6 answers · asked by wtfitsnguyen 2

Just curious how they heat up so quickly in so little time just using waves of energy.

2006-12-10 10:29:03 · 3 answers · asked by teddyrockstar 2

what are some characteristics that are important if i want to become an engineer?

for some reason i keep thinking im not good enough. im a junior in high school and im not outstanding in math but not horrible eaither. i like when i understand it but im kinda slow at it most of the times. sometimes ill spend 20 minutes (or more) trying to figure out a problem... is that a good characteristic? im taking pre cal now (well more like trig). its such a beeyotch!
i do like the hands on science part. experiments are fun for me but im not too crazy about the equation stuff with it.

is this a good choice for me???

2006-12-10 10:27:03 · 7 answers · asked by ... 3

2006-12-10 10:01:20 · 4 answers · asked by cal v 1

2006-12-10 09:18:40 · 3 answers · asked by snakexxx25 1

2006-12-10 09:10:20 · 4 answers · asked by peace 1

to use a torque wrench the setting has to be 13kgs but the wrench is only in newton metres? what is the new setting?

2006-12-10 08:57:54 · 7 answers · asked by Anonymous

homework assignment. due monday.

2006-12-10 08:37:46 · 2 answers · asked by Anonymous

say you calculate the NRE for a given diameter, velocity, density and viscosity but you then want to use those same values and calculate a new pipe diameter for a new velocity, is the NRE that you calculated initially what you would use to find the new diameter for a new velocity?

2006-12-10 08:37:34 · 2 answers · asked by Anonymous

In Europe the cycles are different than the US. Besides this, they also use two wire systems with an earth ground. How could I wire a three wire US electrical system to work with a two wire European system to get the 250V? What other diferrences would occur other than perhaps the motor running faster because of the cycle difference?

2006-12-10 08:35:24 · 2 answers · asked by Anonymous

i am writhing a paper for math class.

2006-12-10 08:02:25 · 4 answers · asked by Steven W 1

2006-12-10 07:54:18 · 1 answers · asked by malik m 1

2006-12-10 06:59:08 · 5 answers · asked by Lily K 1

i want to be an environmental/earth science type of engineer. what are some good universities for that?

it can be anywhere. im open for anykind of travel!

:D

thanks!

2006-12-10 06:33:01 · 7 answers · asked by ... 3

2006-12-10 06:09:12 · 5 answers · asked by googlefan 1

I have a 6v Battery in an old tractor that can not be removed and I need to jump start it. I have a portable jumpstarter for a 12V battery. Is it possible to convert the voltage so that I can use it for my battery.

2006-12-10 05:56:32 · 4 answers · asked by Bobsk 1