Engineering - December 2007

Any time you look at two numbers taken from the same thing, what are the two possible reasons the numbers are different?

2007-12-11 06:02:20 · 4 answers · asked by Booker T "Right There" 5

i need 2 do a tracking robot which moves on a white line n stop wen it comes across a white horizontal line across its path..can some1 giv me any ideas..pls...

2007-12-11 05:14:12 · 2 answers · asked by RITZ DON 1

If I wanted to turn a sheet of steel into the face of Mickey Mouse (not that I would, without the trade mark...), who would I call?

2007-12-11 04:08:10 · 8 answers · asked by Shant 2

a drilling rig 12 miles offshore is to be conneced by a pipe to a refinery onshore, 20 miles down the coast from the rig. If underwater pope costs $50,000 per mile and land-based pipe costs $30,000 per mile, what values of x and y give the least expensive connection?

2007-12-11 03:28:03 · 1 answers · asked by Frank da Tank 1

2007-12-11 02:27:25 · 2 answers · asked by confused1 1

2007-12-11 02:23:48 · 3 answers · asked by joonsayin 1

2007-12-11 01:21:08 · 9 answers · asked by Anonymous

2007-12-11 01:13:20 · 2 answers · asked by nancee c 1

I'd like to attach the bases of the aluminum cans but I want it to look seamless. Any suggestions if you don't think it's possible would be appreciated too.

2007-12-10 23:19:42 · 3 answers · asked by JON 2

It it possible to reverse it's purpose, i.e. use it as a generator rather than a motor.

2007-12-10 21:52:52 · 5 answers · asked by Anonymous

2007-12-10 19:53:10 · 5 answers · asked by tnucamai 3

Would it be better and more efficient to charge a 12v battery with a generator that produces 350v and 15 amps at 2,000RPM or a generator that produces 50v and 50amps at 2,000RPM? In general which is better for charging, amps or volts?

2007-12-10 17:44:48 · 3 answers · asked by Cassidy A 1

and was dressed in a green suits to look like a little elf and working in the santa workshop ? what would you build or make .

2007-12-10 15:33:06 · 1 answers · asked by statecalifornia2009 7

TRUE OR FALSE

2007-12-10 14:56:13 · 1 answers · asked by man with ?'s 1

Specification: USL is 85, LSL 84.5
Xbar Chart UCL is 84.80, LCL is 84.70
Some of the points are within the Specification limits but out of the Control limits

2007-12-10 14:31:56 · 2 answers · asked by rrdizon 1

A tumor is being treated with an experimental drug. Using medical imaging techniques, it is determined that the tumor is approximately spherical.
Use differentials to estimate the percent change in volume of the tumor if the radius is reduced from 2.0 cm to 1.9 cm.

2007-12-10 14:05:48 · 1 answers · asked by Anonymous

I need to understand what nanotechnology is and how it is used but im only 13 so please make it easy for me to understand.

2007-12-10 13:33:52 · 2 answers · asked by c0l0mbianchika11 1

steel beams to light weight steel beams..for reinforcement

2007-12-10 13:23:47 · 3 answers · asked by joe 1

i am modifying my 18v rechargable torch by doing away with the hot 18v bulb and replacing it with a (12x) LED light that im using from a 4.5v headlight torch (the donor torch). so i need to cut the voltage from 18v down to 4.5v.... can i do this with aresistor, and if so, what value should that resistor be? thanks kind people!

2007-12-10 12:31:30 · 5 answers · asked by philo 2

Ok do the formula is Q = m*c* (delta) t

Q is the specific heat.
M is the mass
C is the What? This is what i need help with.
And Delta ( T ) is the change in temperature i believe?

2007-12-10 12:27:56 · 1 answers · asked by John D 1

2007-12-10 11:49:22 · 3 answers · asked by Anonymous is my name...lol! 3

100.0 liters of water steam collected at 127.0 degrees celsius ( under 1 atm) to ice at -20.0 degrees celsius. (Molar mass: O = 16.00 g, H = 1.008 g. The specific heat of ice is 2.03 J/g-degrees celsius, the specific heat of water is 4.184 J/ g- degrees celsius, the specific heat of steam is 1.99 J/g-degrees celisius. the heat of fusion is 6.01 kilojoules for water, and he heat of vaporization is 40.79 kilojoules for water)


please show the steps

2007-12-10 11:38:34 · 1 answers · asked by peluc 1

I desperatly need to have privacy obsessed by it as well as fixing some things gone a bit arye

I really need to stop HAARP from doing its bussiness as well as make it impossible for the town to see my wife and I doing what we do best

2007-12-10 11:11:52 · 1 answers · asked by Anonymous

what are the common eficiencies fro transformers?

2007-12-10 10:57:09 · 3 answers · asked by nic 5

Can you give me the references?

2007-12-10 10:51:15 · 2 answers · asked by dk 6

2007-12-10 10:45:04 · 3 answers · asked by sspracin 2

what year was the telegraph invented?

2007-12-10 10:17:29 · 1 answers · asked by caitlin 2

i hear that it's bad for you to stand in front of a microwave. is this true? if it is why?

2007-12-10 10:12:38 · 15 answers · asked by Seven 2

any phase and neutral conductor?

2007-12-10 10:05:07 · 7 answers · asked by Paul 2

An FM radio station broadcasts on a frequency of 95.1 MHz. What is the length of a quarter-wave antenna designed to receive the signal from this station?
What is the energy associated with a photon of FM radio signal 95.1 MHz? Give answer in Joules.

2007-12-10 08:45:08 · 3 answers · asked by Rupert 1