Engineering - December 2007

assume an earthquake wave has a frequency of 2 Hz. Seismic velocities in the rock of your area range from 1000 m/s to
10 000 m/s. construct a graph of wavelength versus seismic velocity for your area, To do this remember
velocity = wavelength x frequency

If a building is safe from earthquake damage ONLY if it is shorter that one-fifth of a wavelength, what is the largest building you can build in the area

PLEASE HELPPP!P!P!P!P!P!P!P!!P!P!PP!!

2007-12-12 18:28:33 · 1 answers · asked by Anonymous

In Thermal Power Plant, we have ordered this paint code, but i want to know that what actually the colour is?

2007-12-12 17:04:17 · 2 answers · asked by deepak_8584 1

We had a meeting at work today with a little demonstration by the president. he divided us into two teams of 10, 5 facing 5, and instructed us to simply lower a bar of steel to the floor; the only "customer requirement" was at no time was anyone's fingers to not touch the bar.
the outcome: the bar of steel kept going up instead of down, no matter how much crabbing and complaining to each other ("why are you raising instead of lowering!!" and "down, not up you idiots!")
can this be done? or because everyone is so intent on keeping their fingers on the bar, it will never go down, only up??

2007-12-12 14:28:54 · 3 answers · asked by nascarmommy 4

2007-12-12 14:17:49 · 3 answers · asked by rogerman 1

If I use a charge controller for a 12v battery that limits the voltage and Amps would my battery die if I am using more volts and amps than the charge controller is allowing to run into the battery? Basically I want to run applications of the battery through an inverter but the applications use a lot of volts and amps. I want to charge the battery with a simple generator that creates plenty of energy but I have been told just running it into the battery would damage it so I need a charge controller that limits the voltage to 14-15 volts and 20amps but my applications use more than that. So would my battery go dead or would it take more energy the lower the battery level is?

2007-12-12 12:33:18 · 3 answers · asked by Cassidy A 1

let's say, I have a rectangular building that is 200 ft. wide x 300 ft. long and I'm going to draw it 8.5 in. wide and 11 in. long on a plan , what's going to be my drawing scale and what's the formula if any?
thanks for any feed back.

2007-12-12 11:28:36 · 6 answers · asked by hector596 2

How do I figure out how much CO2 and CO my water heater is producing. I want to figure out the environmental impact of a gas burning water heater.

I'm trying to put an example together that shows if 100 water heaters were changed out for tankless on demand water heaters that would be same as removing X number of cars from the road. Hope that makes sense.

2007-12-12 10:57:17 · 3 answers · asked by Bobby J 2

The vapor pressure of CCl3F at 300K is 865 torr. If 11.0 g of CCl3F is enclosed in a 1.1-L container, what is the liquid present?

Confused so any help would be apprecated. Thanks

2007-12-12 08:58:56 · 2 answers · asked by FANTASY 2

There has been a lot of new, weird technologies invented, i was wondering if that was one of them...if yes, then can you provide source?

2007-12-12 08:30:21 · 5 answers · asked by Anonymous

2007-12-12 06:55:48 · 3 answers · asked by expartethis 1

Hi. I'm translating an American technical document which keeps making references to "PER SPECIFICATIONS". When I google it, of course, I find millions of sites with "as per specifications", which is no help at all!!!!!

2007-12-12 05:16:26 · 9 answers · asked by basher999 2

=TIME(LEFT(IF(LEN(P249) = 5, "0" &P249, P249), 2),MID(IF(LEN(P249) = 5, "0" & P249, P249), 3,2),RIGHT(IF(LEN(P249)=5, "0" & P249, P249),2))

This is used to extract a 6 digit number that represents a millitary time HHMMSS (hours, minutes, second)

for example: if the cell says 23 that is means 12:00:23 AM and the statement should return 12:00 AM
if the cell says 172359 that means 5:23:59 and the statement should return 5:23 PM

something here is wrong and I can't figure it out.
ANY GENIUSES OUT THERE?

2007-12-12 04:43:05 · 2 answers · asked by KEYNARDO 5

I understand the dam is nearly completed but, are their civil engineering standards really adequate? Or maybe the standards are fine but how about the rigor to enforce those standards to be used, I could imagine in a couple of years the dam will start to wash out.....not that I am saying our rigor to enforce standards is higher (look at the big dig)

2007-12-12 03:40:25 · 8 answers · asked by lymanspond 5

if I wrote 11111111, would you know what number it represented immediately? Is it necessary to remember it in this way? What will be the benefits?

2007-12-11 19:01:40 · 7 answers · asked by Anonymous

I am a one man band new at bringing attention to innovation in base load electric generation.

The idea behind the generator arose from Steam requiring 550Dc heat to reach a pressure of 140 Bar the force required a rotate a 350 megawatt steam turbine.

There be many other gasses that reach that pressure at far less heat, but unlike steam they don’t require cooling water to condense back into a liquid.

“Einstein “was the first with this when he invented the Ammonia Fridge, now commonly known as the Gas fridge.

Some active gasses need only air temperature to supply pressure enough to power a 350 Megawatt turbine.

2007-12-11 18:02:08 · 3 answers · asked by Anonymous

remember that the engine is not working on the carrier

2007-12-11 16:59:54 · 4 answers · asked by jamilajan 1

2007-12-11 15:47:19 · 7 answers · asked by SUMMER 1

hi ppl... i gotta make a fully functional RC plane as ma project... i'd like to make it of ma own rather than buying kits and assembling... could anyone pl help me with da step by step(or gemme da website that explains) procedure for making ma project come true ??? pl help...

2007-12-11 15:12:00 · 2 answers · asked by Gokulsreeram 2

From a Civil Land Development Engineering firm we are asking how we may be best used to serve the community.

2007-12-11 14:47:46 · 1 answers · asked by McKeon_PE_Orlando 2

2007-12-11 14:14:54 · 6 answers · asked by Faisal S 1

what would be the difference in the 2 when heated

2007-12-11 13:04:36 · 19 answers · asked by Anonymous

How would it affect our weather? Our natural resources? The mantle of the earth? Earths orbit and rotation? What if lightning hit it? How often would that happen? What if it got hit by a meteor? What if it toppled over? How much would it cost to build? What kind of steel and other materials would we have to use to support all that weight? How big would the foundation have to be? How long would it take to build?
(Forget about the facts that we could not survive being in space because of UV rays, X-rays, no Oxygen, no gravity there, forget all that stuff and lets just say WHAT IF here.) I just want to see what kind of ideas people can come up with.

2007-12-11 12:32:12 · 1 answers · asked by Anonymous

I know that if you bury the object extremely deep in sand, debris, etc., that the metal detector may fail to pick it up, but is there a material that actually blocks or diverts the electromagnetic waves of the metal object?

2007-12-11 12:28:34 · 4 answers · asked by Al Shepard 2

...... the title says it all lol

2007-12-11 11:12:31 · 7 answers · asked by Anonymous

Must be made of metal such as aluminium

2007-12-11 10:46:34 · 4 answers · asked by steam4power 1

is carbon monoxide heavier or lighter than air?

2007-12-11 10:42:02 · 3 answers · asked by wlyl3 2

2007-12-11 09:42:02 · 1 answers · asked by Anonymous

Well I am making a container that will portect an egg that is dropping a 5 meter drop. No packaging materials like bubble wrap, styrofoam and peanuts etc...
No parachutes.

2007-12-11 09:35:51 · 5 answers · asked by Anonymous

2007-12-11 08:03:33 · 10 answers · asked by ♥Why*Give*Your*Heart*To*A*Boy*?♥ 1

car wont start with the keys

there are for connections on the starter solenoid. these are:
1.) the + from the battery to the solenoid
2.) the earth from the starter motor ground to the solenoid
3.) the wire from the ignition switch ( when in cranking)
4.) the wire from the + coil.

Ok, there is an internal connection in the solenoid. This forms a closed circuit when there is current in the switch wiring( when cranking) and from the battery + side as explained above.

I have tested the current going to the solenoid from the switch and it gives a reading of 12.15 V. I have also tested the voltage from the battery[12.37V] and have found a good ground on the solenoid producing 12,37V.

The car will not start. The Solenoid is NOT faulty. I have removed the starter and the solenoid from the starter and it worked well when not connected to the starter motor.

The car will start if you bridge the + battery with the ignition switch(in cranking position). Therefore the starter

2007-12-11 07:36:26 · 4 answers · asked by Anonymous