Engineering - December 2007

I am a second year chemical engineering major, and I find the major is so hard. I studied a lot more than my roommate, but my GPA is barely 3.0. My roommate's major is sociology. He doesn't study much, and his GPA is almost the same with mine.

I just finished Organic Chemistry final today. It was so hard, and I am just hoping to pass the class. =(

Will chemical engineering get easier in the junior and senior years?

I love natural, science and technology, I want to become a chemical engineer, but if it will get harder, I don't think I can take it anymore..

2007-12-17 18:02:48 · 3 answers · asked by Ryan_kidz 2

2007-12-17 17:01:47 · 4 answers · asked by Anonymous

2007-12-17 15:29:53 · 9 answers · asked by Tamil from Vellore 7

How is heat energy used to generate electricity in a modern power plant???

2007-12-17 12:01:07 · 3 answers · asked by deebee 2

What is its amplitude to the nearest centimeter?

2007-12-17 11:29:27 · 2 answers · asked by Anonymous

A. 895 meters per second B. 895 feet per second C 179 meters per second D. 179 feet per second

2007-12-17 11:28:25 · 1 answers · asked by jerry d 1

2007-12-17 10:44:03 · 2 answers · asked by Anonymous

Hi. I'm doing a project on alternative fuels for my Science class, and since I'm in 8th grade, I really don't know much about them. I know what they are used for, but are they easy to obtain?

2007-12-17 10:18:54 · 4 answers · asked by anne m 1

I need ideas where I create twelve DIFFERENT energy transfers or transformations using only simple machines. NOTHING CAN BE DANGEROUES. Like flame, explosion, airborne objects. PLEASE someone. There is ten points in it for you too remember thanks and PLEASe HELP ME

2007-12-17 09:55:47 · 5 answers · asked by Anonymous

I'm basically frankensteining together 2 electronic devices. I have some very basic skills with electronics, and can solder well. However, the two devices use different power supplies. Device A runs at 9 volts and 2 Amps, and Device B runs at 12 volts and .6 Amps. A friend of mine knows that Device B can also run fine at 8 volts.

My biggest question is will the difference in current be catastrophic? If likely, would a circuit such as the right most one here ( http://home.cogeco.ca/~rpaisley4/xCurrentReg.html ) work to get a constant current?

Any help with any of these questions would be very helpful.

2007-12-17 09:45:19 · 5 answers · asked by Harry S 3

2007-12-17 08:59:27 · 12 answers · asked by Anonymous

Their are a lot of egg drop questions on here but their are none where the only thing you can use is wood
the requirments:
All wood no paper or cardboard
no thinker that the width of a popsicle stick

i need help i cant think of any ideas
lightest mass wins
egg will be supplied at the start of class

2007-12-17 08:35:17 · 1 answers · asked by bucket71 2

2007-12-17 08:22:10 · 3 answers · asked by deathkill749 1

How doea it work in industrial fied, motors, controls, 3ph systems.

2007-12-17 07:12:42 · 4 answers · asked by David B 1

Ok, so i'm doing a little project with my younger brother and i need to know will a 1.5v (AA) battery destroy two LED's, which each have a maximum forward voltage of 2.5v and a maximum forward current of 40ma, when wired in a series circuit along with a 1.5 volt moter.

would this work, would there be too much or not enough power?

Thanks.

2007-12-17 07:06:10 · 4 answers · asked by Rover 3

2007-12-17 06:58:37 · 5 answers · asked by martinanderson23 1

2007-12-17 06:57:20 · 4 answers · asked by martinanderson23 1

Hi, does anyone know where i can find more about this topic ? fire resistant steels for structural applications. thanks

2007-12-17 05:47:38 · 5 answers · asked by killer_boy03 2

2007-12-17 02:15:51 · 2 answers · asked by Ed L 1

http://www.sendspace.com/file/n0ryg0
can explain to me about how it current run or voltage drop?
thank you

2007-12-17 01:54:41 · 1 answers · asked by lwy 1

2007-12-17 01:21:58 · 10 answers · asked by Asha 2

2007-12-17 00:21:23 · 3 answers · asked by Benny Jetstream 1

That of a zener,rectifying,silicon,gemanium diodes.

2007-12-17 00:00:38 · 1 answers · asked by wisestone 1

We are erecting 128 buildings out of precast elements consisting mainly of load-bearing walls (no columns) and hollow-core slabs. Specifications say all embedded items in precast elements should be stainless steel. The precast manufacturer says that SS for lifting sockets is not required since the sockets will be used for lifting only and therefore need not be stainless steel as carbon steel sockets will serve the same purpose.

2007-12-16 22:48:58 · 5 answers · asked by ronald patrick 1

2007-12-16 22:09:50 · 4 answers · asked by m_nasery_k 1

I have a college assignment to but really stuck on a question, so any help would be great. the exact question is

describe the main elements of the financial planning process in an engineering business and the sequence in which the planning takes place.

you can ignore the engineer bit if you want to - just a general idea to help me out would be good and ill incorporate the engineering bit later

2007-12-16 21:17:14 · 1 answers · asked by Faye 1

2007-12-16 20:06:27 · 11 answers · asked by Anonymous

I want to build a unit large enough to be able to recharge a battery powering an inverter so I can run regular 110-120V appliances. I'm thinking something that will harness the rotational power of a bicycle (21+ gears) and move a magnet thru the solenoid (either direct rotation at the wheel, OR movement in a verticle tube and use an upward force to move the magnet up, with gravity pulling it back down, to simulate shaking) to generate the electricity to recharge a battery.

I'm wondering why this hasn't yet been done and think it could be impracticle if not impossible. But I can't get the idea out of my head.

Can anyone see anything wrong with this idea?
I have the battery (12v, 4.5 A) and inverter. I have a solar panel but that takes too much time to recharge.

2007-12-16 16:05:09 · 3 answers · asked by Piqchure 4

And how about step down transformer where is it used in power transmission?

2007-12-16 15:30:00 · 5 answers · asked by Allie 1

2007-12-16 15:11:29 · 5 answers · asked by Manh Cuong N 1