Science & Mathematics - 16 February 2007

we've all seen the magazine ads.. for schematics on how to build your own jetpack or time machine or other such inconcievable devices.. oh you havent? Well grab any old MAD magazine or popular science magazine and im sure youll run into one.. the question is.. has anyone ever made one?

2007-02-16 18:15:21 · 19 answers · asked by Mister Fantastic 2 in Paranormal Phenomena

2007-02-16 18:14:06 · 3 answers · asked by suja 1 in Mathematics

2007-02-16 18:13:23 · 18 answers · asked by neon 1 in Chemistry

The question is:

In a population it was reported that the allele frequency for M was 80% and for N was 20% in the MN blood group system. M and N are CO-DOMINANT alleles. In your words, describe the steps used to determine blood group frequencies.

If I knew how to do this, I would use my own words....Please help if you can?

2007-02-16 18:13:15 · 2 answers · asked by snuggles24_04 3 in Biology

In a two-dimensional array, X (7, 9), with each element occupying 8 bytes of memory, with the address of the first element X (1, 1)=3000; find the starting address of the element at X (5,8).

Please tell me how to solve this!!

Additional Details

53 minutes ago
X 9) + 7 = 43 X 4= 172 à 3000+172 == 3172 ( i.e completely 4 rows r filled , in fifth row up 7th cell is filled next cell is required address )


This is how the solution is given as , but i have no clue how this works, so if anyone could explain it would be great!!

2007-02-16 18:12:45 · 2 answers · asked by Kiran 2 in Mathematics

I need complete equations oxidising Fe3O4 by adding HCl then HNO3 and lastly NH3 to get Fe2O3

2007-02-16 18:11:31 · 1 answers · asked by mosaic27 3 in Chemistry

I live in rochester, NY. The recent Valentines Day storm cancelled our college classes and that was great... but me and my roomate have been debating for a few days now exactly how much snow fell. He is looking at reports from the area which say we got 21 inches... I have been outside walking through the stuff and the deepest i have been in is no where near that or so it would seem. (deepest was about at my knee... and im about average height) this would lead me to assume we got about 12, maybe 13 inches at the most.

There was some blowing... but could that really cause a 9 inch discrepency all over?

2007-02-16 18:11:25 · 3 answers · asked by wyoba 2 in Weather

Cnau tell em how to find the natural logarithm of a number ?
for eg :

ln(4096)/ln(4) ; the ans is 6 but i dont know how to do that with out the log tablem is there any way to find this without the use of a log table, plz help me out .....

2007-02-16 18:11:13 · 6 answers · asked by Kiran 2 in Mathematics

the asprin i am talking about would be aleve. or is there something safer that could be taken.

2007-02-16 18:11:03 · 3 answers · asked by Anonymous in Medicine

2007-02-16 18:04:18 · 2 answers · asked by aj 1 in Physics

Do all photons from the same light source travel at the same speed i.e. at the speed of light?

2007-02-16 18:02:04 · 13 answers · asked by rajesh bhowmick 2 in Physics

2007-02-16 18:01:14 · 3 answers · asked by shan n 1 in Physics

in geometry...........

2007-02-16 18:00:29 · 3 answers · asked by Anonymous in Mathematics

2007-02-16 18:00:13 · 3 answers · asked by aj 1 in Physics

What would it be like? Could it be contained? Would it be able to be seen?

I'm prepared for the complicated answers.

2007-02-16 17:56:19 · 3 answers · asked by t3hl33tl33t 1 in Physics

2007-02-16 17:55:12 · 5 answers · asked by yagna d 1 in Other - Science

√252 to the 5th power y over 7x to the 3rd power y to the 2nd power

2007-02-16 17:55:03 · 1 answers · asked by Me 2 in Mathematics

throughout the whole process of cellular respiration. they mention electrons. but where do they come from? do they come from NAD+ reduction to NADH, FAD to FADH2?

- Just to make sure also.the H+ protons come from the oxidation of NADH to NAD+ and FADH2 to FAD. right?

2007-02-16 17:54:53 · 4 answers · asked by avalentin911 2 in Biology

Anything news-worthy to report from this sorely under-funded, under appreciated and mostly mis-understood organization ?

2007-02-16 17:52:45 · 6 answers · asked by N.E. Cycle rider 2 in Astronomy & Space

2007-02-16 17:48:27 · 3 answers · asked by Sara 1 in Chemistry

2007-02-16 17:48:24 · 11 answers · asked by tatimsaspas 4 in Earth Sciences & Geology

2007-02-16 17:46:21 · 14 answers · asked by Anonymous in Physics

Do they really believe the earth is standing still?

2007-02-16 17:44:13 · 7 answers · asked by spreading_the_word 1 in Astronomy & Space

I need someone to explain what exactly an octal is, what a base is, ,what relation do they have, what binary is and how it works and how this is all related together???

I am very confused.

2007-02-16 17:42:29 · 8 answers · asked by Peter H 1 in Mathematics

A black hole may be made of "dark matter" or "antimatter!?"

2007-02-16 17:41:31 · 7 answers · asked by Sir Grandmaster Adler von Chase 7 in Astronomy & Space

I need someone to explain what exactly an octal is, what a base is, ,what relation do they have, what binary is and how it works and how this is all related together???

I am very confused.

2007-02-16 17:41:14 · 3 answers · asked by Peter H 1 in Mathematics

2007-02-16 17:39:47 · 2 answers · asked by Peer 1 in Engineering

2007-02-16 17:36:09 · 5 answers · asked by Mansur A 2 in Astronomy & Space

For what values of x in [-2*Pi,2*Pi] does the graph of x+2^(1/2)*sin(x)have a horizontal tangent line? Put the answer in points on the graph. I cannot figure this out. I know the equation and stuff but i do not know how to put it in. can someone show me the answer

2007-02-16 17:36:04 · 3 answers · asked by Anonymous in Mathematics

when i connected -VCC supply on pin no. 7 of opamp IC lm741, the negative voltage reflects on input pin no. 3 of the IC. when i remove -VCC, the correct input voltage appears on pin no.3. but without -VCC amplification will not be possible. can anybody help me?

2007-02-16 17:34:40 · 2 answers · asked by Pulkit 1 in Engineering