Engineering - March 2007

2007-03-31 04:27:38 · 2 answers · asked by goring 6

2007-03-31 04:24:55 · 1 answers · asked by goring 6

what is this heat signature(used in missile techonology to keep a track of any plane ar any missile)? where can i find about it in details?does it apply on humans?

2007-03-31 04:20:32 · 1 answers · asked by Anonymous

2007-03-31 04:10:57 · 6 answers · asked by Anonymous

2007-03-31 02:57:54 · 4 answers · asked by Anonymous

I wanna make a led flashlight with 15 leds and only one power source and switch.

2007-03-31 02:50:38 · 4 answers · asked by MissUkraine2005Lover 3

I am making a large VU meter ran off of a high voltage color organ and in order to make the display move I need to put resistors between the lights, what size risistors are recomended?

2007-03-31 02:41:28 · 4 answers · asked by Eric K 1

Hi!
im a first year civil engineering student and i need to do a proect on the hoover dam(around 15 pages). can any1 tell me an site which has good info related to the construction and basically engineering aspect of the hoover dam?
please dont say wikipedia, ive exhausted it!!

2007-03-31 00:15:40 · 1 answers · asked by netsavvy_sashi 2

i need it for my project. i dont know what my project is going to be but my brother said i could look for programmable processors that i can buy online and then think of some applications later.

2007-03-30 21:38:00 · 3 answers · asked by ThecharmedOne 2

also given the dimensions of the room.

2007-03-30 21:26:30 · 2 answers · asked by ravi t 1

2007-03-30 20:38:48 · 4 answers · asked by mymindsablank 1

2007-03-30 19:52:17 · 9 answers · asked by Anonymous

Pressure is calulated in BAR & capacity is calculated in CFM

2007-03-30 18:31:57 · 5 answers · asked by amit 1

WHEN INVERTER IS CHEAPER THEN COULD BE REPLACED IN PLACE OF COSTLY UPS

2007-03-30 18:27:26 · 5 answers · asked by gopalsingh 1

What is the strongest type of physical material? I am thinking in terms of resisting amazing amounts of heat, and EXTREME amounts of energy. Thanks!

2007-03-30 15:43:41 · 13 answers · asked by Anonymous

I need several various sizes for a class project.

2007-03-30 14:28:47 · 2 answers · asked by tlaroy724 1

I have a 4 inch pipe supplying water at 6.7 bar pressure to hotel rooms in a 4 story block.
Connected into the 4 inch main feed pipe are a number of Risers to the floors which are 1 inch pipe.
Each riser supplies water to 2 rooms each on the 4 floors making a total of 8 rooms.
Each room has a shower, a vanity sink and a toilet.
The piping to each of the above utilities is further reduced from the 1 inch riser to 1/2 inch.
Problem: If a number of rooms is using the shower at the same time, the water pressure to the 4th floor is almost zero.
Question 1: What is the formula for working out the pressure drop to the 2nd 3rd and 4th floors.
At the present time the 4th floor rooms are the main problem areas.
Question 2: how do I increase the volume of water without increasing either the pressure, or the size of the main riser pipe.
Note: The main 4 inch supply pipe has 32 1 inch risers tapped into it thus supplying 128 rooms.

2007-03-30 14:27:46 · 1 answers · asked by david f 1

is it true that fiber optics are in coaxial cable lines?
if not then where can i find some that i can mess around with

2007-03-30 13:50:49 · 5 answers · asked by Anonymous

Say I had 600 Metric tons, how would I find that amount in standard tons?

2007-03-30 12:12:23 · 7 answers · asked by MamaB 2

just wondering

2007-03-30 12:02:09 · 2 answers · asked by macgyver 1

on a tesla coil circuit, where you see it's secoindary coil at the bottom of it where you see a ground symbol does that mean that you should connect that back to the discharge sphere

2007-03-30 11:56:21 · 3 answers · asked by macgyver 1

You have been asked to design a solar water heating system for a family of four. The family uses 100 gallons per day of hot water at 50 degrees Celcius. The cold water enters the house at 5 degrees Celcius. The solar collector heats the cold water to 75 degrees Celcius and stores it in an insulated storage tank until the family needs it. The sun shines for an average of 7 hours per day and provides 235 Watts per meter squared. Determine the size of the storage tank and the size of the collector.

2007-03-30 10:02:12 · 6 answers · asked by dawance88 2

I am working on a school physics project and I need a resistor wire that will overheat enough when attached to a 9V battery that it will ignite a phosphorous match head. I am hoping that there is a common household wire that will do the trick.

2007-03-30 09:42:06 · 10 answers · asked by matpatstery 1

2007-03-30 08:50:43 · 2 answers · asked by Anonymous

Any additional information for GA resident and can i do it my self

2007-03-30 08:24:51 · 8 answers · asked by luips 1

how do they get the plumbing and electrical to the top floors, i was wondering if they do it one floor at a time, or wait till the whole building is finished, a diagram would be nice :)

2007-03-30 08:09:18 · 2 answers · asked by Anonymous

2007-03-30 07:47:48 · 5 answers · asked by Mich L 2

* We need to design a logic circuit to control an elevator door in a three-floors bldg. The circuit has four inputs. M is a logic signal that indicates when the elevator is mocing (M=1) or stopped (M=0). F1, F2, and F3 are floor indicator signals that are normally LOW, and they go HIGH only when the elevator is positioned at the level of that particular floor. For example, when the elevator is lined up level the second floor, F2=1 and F1=F3=0.
* The circuit output is the open signal which is normally LOW and is to go HIGH when the elevator door is to be opened.
* design the logic circuit to produce an OPEN door for stated conditions: simplify the expression and implement the circuit in gates.

2007-03-30 07:42:48 · 3 answers · asked by The Genius 1

Iam civil engineer . we have cadastral survey area and our requirements to buildng low cost houses for civils peoples and for poors .

2007-03-30 07:15:03 · 2 answers · asked by Feread T 1

Please give me any sources or any information about the production of alkaline batteries

2007-03-30 06:35:37 · 1 answers · asked by zE_kInG 1