Science & Mathematics - 5 September 2007

abcde
x 4
_____
edcba

2007-09-05 23:56:36 · 9 answers · asked by fantasyofmagic 1 in Mathematics

2007-09-05 23:53:44 · 10 answers · asked by george 1 in Mathematics

now we are hearing fm ex 93.5 .is possibile to convert this signal to electric signal

2007-09-05 23:52:08 · 1 answers · asked by pandiya rajan 1 in Engineering

Two observers, at the same time, measure the angle og elevation of a helicopter. One angle is measured as 35 degrees and the other angle as 50 degrees. If the observers are 200 feet apart and the helicopter lies over the line joining them, how high is the helicopter?

2007-09-05 23:39:47 · 3 answers · asked by journey 1 in Mathematics

While many people argue whether or not aliens "exist", others who are well beyond that point ask WHY are some alien races are creating alien-human hybrids?

Is it to improve themselves? Is it to improve us, and we're merely their creation? Is it to merge our biological defenses against micro-organisms? It may be something well beyond our understanding, but we can still speculate. Their technology may be well beyond ours, but perhaps not to the point where we cant obtain at least a vague idea of their intentions.

2007-09-05 23:16:15 · 15 answers · asked by Universal Symbiosis 1 in Astronomy & Space

2007-09-05 23:13:12 · 7 answers · asked by Truenoob 2 in Mathematics

Hi. Any help would be appreciated, here's the question:

You choose 30 from a universe of 60.
Someone else chooses 30 from the same universe.

What are the chances that no element is a member of both sets? Is it the same likelihood that all elements are members of both sets?

Thank you.

2007-09-05 22:33:10 · 1 answers · asked by awakening1us 3 in Mathematics

I know theres 4 step equatioons but can you get 12 step equations? whats the highest you can get?

2007-09-05 22:30:24 · 2 answers · asked by Anonymous in Mathematics

How many time a battery can be charged and discharged contineously?

Is there any formulae or table to caclulate the dicharge of a fully charged battery on its contineous usage?

Is it possible a battery charging contineouly when it is in use simultaneously? if so will it not affect the battery life? and what creteria we may need to monitor to maintain the battery life in good condition?

Is there any standard equipment readily available to monitor and cuttoff the battery when it fully charged and again to allow to charge the battery after a particular dicharge.

Is there any relation ship for charging and discharging of battery

2007-09-05 22:22:35 · 3 answers · asked by mahi 2 in Engineering

2007-09-05 22:12:42 · 8 answers · asked by ashok k 1 in Geography

2007-09-05 22:11:25 · 7 answers · asked by Anonymous in Weather

On 31stAug a good friend died at around 12.45,he was already to go to work when he had a massive heart attack,he was found latter on in the eve by his landlady sitting in a chair,the paramedics said if he had been standing he would have been dead before he hit the ground.
Since Mon3rd at around 20.45 the light switches have been turned off,there has been no one around them each time,it takes kinetic energy to switch off the lights.
2people were outside on Wed5th well away from the lights when it happened and it deeply upset one of them so that rules out a prank.
Try to explane it away.

2007-09-05 21:57:46 · 7 answers · asked by Spsipath 4 in Paranormal Phenomena

2007-09-05 21:50:12 · 17 answers · asked by Anonymous in Astronomy & Space

You know, places where you may find anything? Places even satellite imaging hasn't reached? I've heard that some part of the tropical rainforests are completely unexplored, as are some parts of the Himalayas. But the Himalayas at least are probably extensively covered by satellite imaging.

2007-09-05 21:49:26 · 6 answers · asked by Molu 2 in Geography

Maybe like Roger from American Dad, or maybe they look like Alf, or maybe they look like people, or like the little green man?

2007-09-05 21:47:32 · 9 answers · asked by Anonymous in Astronomy & Space

Does anyone knows how to do Planchette?? Is it true that you can call spirits and ask them question.
Has anyone ever tried doing it? does it really works!

2007-09-05 21:46:48 · 8 answers · asked by Aquamarine 2 in Paranormal Phenomena

Find a line tangent to the curve y = X^(1/2)

at x=4

2007-09-05 21:46:05 · 8 answers · asked by ZinkyPh 1 in Mathematics

2007-09-05 21:45:53 · 8 answers · asked by Anonymous in Astronomy & Space

Just wondering seeing as how it doesn't seem to be working too well for the poor little guys... :)

2007-09-05 21:39:22 · 26 answers · asked by The Ideal Muggle 3 in Zoology

I read that scientists are able to split a couple of sub-atomic particles, which normally exist together, place these particles in different laboratories and manipulate one of them, resulting in exactly the same changes occuring in the other one, despite it being physically seperated. Could anyone tell me a little more about these experiments please. Thankyou.

2007-09-05 21:30:31 · 4 answers · asked by Anonymous in Astronomy & Space

I read that scientists are able to split a couple of sub-atomic particles, which normally exist together, place these particles in different laboratories and manipulate one of them, resulting in exactly the same changes occuring in the other one, despite it being physically seperated. Could anyone tell me a little more about these experiments please. Thankyou.

2007-09-05 21:30:20 · 1 answers · asked by Anonymous in Physics

There is a YA user calling him/herself "Science Teacher" who thinks the chicken comes from the yolk. Good grief.

2007-09-05 21:28:35 · 12 answers · asked by Anonymous in Biology

Also, what is the average pay for doctors, or people working in the medical field? Please list what currency you are using.
Thanx

2007-09-05 21:12:34 · 1 answers · asked by Anonymous in Medicine

1.) 1/y +1 added by 1/y 2.)4(f-g)^2 divided by 3(f-g) 3.)c^3-27/c-3

2007-09-05 20:59:27 · 2 answers · asked by kamote 1 in Mathematics

prob is:
1. from my knowledge, ic logic input/output give HIGH when reading value of multimeter >3.2volt, normally 5volt..whereas LOW when reading value of multimeter <1.8volt, normally 0 volt.. am i correct?
2. What happent when the ic logic input/outpu give reading between 2-3volt.. is it the ic been damaged and need to replace?

2007-09-05 20:54:44 · 3 answers · asked by gr8_halem 1 in Engineering

6y^-2 + y = 0

2007-09-05 20:50:53 · 7 answers · asked by i<3WL 2 in Mathematics

take the formula (X^3+n^3)/(x+n). Take values of x (for arguments sake) from-20 to 20, and for each value of x plot a curve for values of n from -20 to 20. In each case you'll get a lovely smooth curve for every point except where x = -n. At this point you will be dividing by zero so the curve will spike to infintiy. At each point where the spike happens you can predict what the output value of the formula should be to keep the curve smooth. For example where x=1 and n=-1, an output value of 3 would produce a perfect smooth curve. Similarly where x=2 and n=-2, a value of 12 would keep the curve smooth. Am I missing something? Have I made a mistake in the way I'm calculating? Or is this just genuinely a weird set of curves?

2007-09-05 20:50:07 · 3 answers · asked by Anonymous in Mathematics

could some one please breiefly describe the function of major components of an upflow clarifier ??

please help

2007-09-05 20:48:47 · 1 answers · asked by Anonymous in Engineering

2007-09-05 20:47:40 · 2 answers · asked by Anonymous in Other - Science

If a nuclear bomb was dropped in point A, and the wind was blowing towards a town in point B, would the people in the town receive any cancer or effects of the blast?

2007-09-05 20:34:56 · 12 answers · asked by DIIV 3 in Physics