Science & Mathematics - 21 December 2006

I am designing a (low pass) filter for anti aliasing an audio signal before I pass it through and analogue to digital convertor, I eventually want to put it back into an audio output. How important is any phase shift caused by the filter in affecting how the audio will sound at the output?

2006-12-21 06:00:51 · 3 answers · asked by Om 5 in Engineering

2006-12-21 06:00:31 · 9 answers · asked by fosterb_2004 2 in Astronomy & Space

solve for x

1. squareroot 8x-7=x+1

2. x^2-4x-12>or equal to 0

3. x^2/3+5x^1/3-14=0

solving logs

4. y=log8 2

5. -3=lOg5 x

6. logb 3=1/4

thanks for help I'm now learning please help

2006-12-21 06:00:08 · 6 answers · asked by Shady J 1 in Mathematics

2006-12-21 05:59:20 · 21 answers · asked by ••)<]-[/\|)!J/]•• 4 in Astronomy & Space

This enhances research on the beneifts of chemcials derived from other illicit substances (most notable marijuana) in easing symptoms from a multitude of diseases. Do you believe it is more important to keep these drugs illegal or use them to alleviate symptoms of obsessive-compulsive disorder, cancer and other illnesses. Is there a happy medium that can be struck between keeping these drugs away from peope for purely recreational purposes and providing people suffering from illnesses a beneficial drug?

2006-12-21 05:57:18 · 3 answers · asked by Anonymous in Botany

A restaurant opens seven days a week. The number of workers needed to operate the restaurant is as follows. Mon: 14; Tue: 13; Wed: 15; Thur: 16; Fri: 19; Sat: 18 and Sun: 11. Every worker works five consecutive days and take two days off. This pattern will repeat indefinitley. How can you minimize the number of workers that staff the restaurant?

2006-12-21 05:57:12 · 5 answers · asked by Habtamu D 1 in Mathematics

My mom has taught me in History that man has landed on the moon since I was little. But she told me that she personally does not believe it.

2006-12-21 05:57:11 · 17 answers · asked by iluvcappy 1 in Astronomy & Space

Anyone know a website where I can find out about microprocessors/microcomputer hardware/architecture (CPUs, ALUs, registers, RAM, ROM, tristates etc.) from very simple stages.

Failing that, a book would be helpful (I have read the chapters on it in "The Art of Electronics", but something more on the hardware would be really helpful.

Thanks

2006-12-21 05:55:58 · 3 answers · asked by Om 5 in Engineering

With the recent "discovery" although I believe they have known for a long time, about water on mars..how long do u think the timetable will be until they get the guts to admit life is indeed there, was there, and always has been there..along with the water.
So far they have not been able to explain away the large amounts of Methane in mars atmosphere either, its NOT formed by any volcanic activity observed.

I lead u to this image from their own site:
http://hiroc.lpl.arizona.edu//images/TRA/TRA_000827_1875/color.html

The above first image's blue color is not suppose to represent anything natural on Mars but rather is admitted to artificial color added at official level and not by me. In other words, it's false color officially chosen to appear as water even though at the same time it is officially not supposed to be water, if you can get your head around that kind of logic. Yes, it's tricky psychology but that's no doubt going to be a strategy as some of the Mars anomalous evidence

2006-12-21 05:55:33 · 5 answers · asked by danaisagurlsname11 1 in Astronomy & Space

2006-12-21 05:53:56 · 11 answers · asked by Suzanne G 1 in Medicine

2006-12-21 05:53:55 · 9 answers · asked by knapps_malone 1 in Zoology

Solve and show work please.

2006-12-21 05:53:05 · 5 answers · asked by Anitec 2 in Mathematics

I want to know which city has lost the biggest percentage of population. I don't want little towns of 1,000 people that used to be 5,000 people, i want to know which large city has lost the most people percentage wise. I think it may be Detroit, but other cities like Cleveland have also lost a lot. Help!

2006-12-21 05:52:58 · 6 answers · asked by bohdan 2 in Geography

2006-12-21 05:51:35 · 12 answers · asked by JOHN Y 2 in Zoology

2006-12-21 05:50:15 · 14 answers · asked by Jasz B 1 in Mathematics

I am familar with basic electronic symbols in diagrams but I am trying to figure out how to draw a SPDT relay. Currently I am showing it as a inductor and then to the right of it a SPDT switch. Is this ok or should I change it?

2006-12-21 05:49:44 · 2 answers · asked by ncpropes 3 in Engineering

I have a decent background in algebra having taken Algebra I (beginning algebra) and Algebra II (intermediate algebra). My geometry background is sketchier. I have not taken a dedicated geometry class yet, although I am familiar with basic geometric concepts (but not all). I am going to take precalculus next semester. Does anyone have any pointers, advice, or preparation tips?

2006-12-21 05:48:59 · 14 answers · asked by Anonymous in Mathematics

Why can HIV attach itself to a helper T cell (T4 lymphocyte), but cannot attach itself to a skin cell?

2006-12-21 05:48:05 · 4 answers · asked by hey!!!! 1 in Biology

2006-12-21 05:43:37 · 8 answers · asked by Desiree W 2 in Physics

I was just wondering say there is a job that requires a math degree can a engineering degree also be used? So which degree has more value to it. For example complexity

2006-12-21 05:43:11 · 12 answers · asked by Anonymous in Engineering

2006-12-21 05:43:04 · 5 answers · asked by Sky Guy 3 in Engineering

2006-12-21 05:42:42 · 2 answers · asked by Ronald B 1 in Geography

2006-12-21 05:42:05 · 4 answers · asked by Me 3 in Engineering

2006-12-21 05:41:56 · 10 answers · asked by JOHN Y 2 in Zoology

Most major cities now like St.Louis, NY, Chicago, have its own TV network with ABC, NBC,CBS. But what is the population requirement a city must have in order to have its own city's TV network?

2006-12-21 05:39:18 · 10 answers · asked by CXfan 4 in Geography

2006-12-21 05:38:54 · 14 answers · asked by Anonymous in Astronomy & Space

2006-12-21 05:38:15 · 3 answers · asked by DENISE M 1 in Zoology

2006-12-21 05:37:15 · 10 answers · asked by BahamaBlue 2 in Weather

i have an LED and I cut off the light from it. I have copper wire and i sanded it on each end of the wires. Then, i connected the copper wire to the LED wires and i wrapped it around in aluminum foil to keep the wires in place. Then, at the ends of the copper wire, i connected them and no heat is being given off. Does that mean that there is no electricity being flowed through the LED to the copper wires? Please Help me i am desperate.

Best answer receives 10 points

2006-12-21 05:35:01 · 1 answers · asked by Igobeg O 3 in Engineering

i'm a jee 07 aspirant & need fiitjee gmp & rankers test paper file of some years so as i wil b able to get some gud revision if know abt plz reply thnx.

2006-12-21 05:34:24 · 1 answers · asked by Cylonnumber13 1 in Engineering