Science & Mathematics - 9 February 2007

Hi,
Does anyone knows if spectrophotometer falls into the category of biotechnology or it is just purely science and technology??

Thanks alot.

2007-02-09 19:10:30 · 9 answers · asked by Janet 2 in Biology

I was studying when I was struck by this question. Why do paramecium eat? Do they "feel" hunger? Do they eat because they "know" they have to in order to survive (i. e. intelligence)?

2007-02-09 19:06:50 · 8 answers · asked by Anonymous in Zoology

What is 80% of 12?
56 is 75% of what number?
What percent of 80 is 50?
85 is what percent of 200?

2007-02-09 19:06:43 · 10 answers · asked by Anonymous in Mathematics

2007-02-09 19:06:21 · 4 answers · asked by Anonymous in Mathematics

2007-02-09 19:04:14 · 7 answers · asked by lhens 1 in Physics

2007-02-09 19:04:04 · 18 answers · asked by Anonymous in Astronomy & Space

What is 175% 0f 85?
76 is 80% of what number?
What is 50% of 42.88?
96 is 160% of what number?
What percent of 24 is 72?

2007-02-09 19:03:09 · 2 answers · asked by Anonymous in Mathematics

2007-02-09 19:02:13 · 24 answers · asked by bryrog1 1 in Geography

Scientist have not got all the answers as some of the cluest machines came from the australian back shed and the back yard aussie inventor is one to tangle with like a king brown snake .To all you people ,it is a world effort to combat carbon emissions.It is wasting money and a carbon resouce that flows out of a vehices muffler as my idea for a carbon filtration unit is that this carbon filtration unit collects the carbon in a way that the carbon can be made into carbon products that can benefit the community and the amounts of carbon collected could build houses ,cars ,motorcycles as the list is endless .?Just imagine machines that look like big jet engines that sit high above city collecting carbon emissions and processing the carbon emissions into carbon product.What a free resource of material?back shed cant be beaten

2007-02-09 18:51:17 · 4 answers · asked by Anonymous in Engineering

what is it called when someone is strapped down and forced to watch a video (like in clockwork orange)? a good example is in the latest episode of "Lost". Is there an actaul term for that?

2007-02-09 18:48:51 · 30 answers · asked by IGS-4-ever! 1 in Parapsychology

2007-02-09 18:48:30 · 4 answers · asked by FranceandRussia#1 1 in Chemistry

2007-02-09 18:45:50 · 14 answers · asked by ღ 4 in Mathematics

The attendence at the Brown family reunion was 160 people. This was 125% of last's year attendance. How many people attended the reunion last year?

2007-02-09 18:43:16 · 9 answers · asked by Anonymous in Mathematics

48 is 60% of what number?
What is 175% of 48?
What percent of 90 is 50?

2007-02-09 18:37:33 · 15 answers · asked by Anonymous in Mathematics

what is 2.53g/cm^3 times 25mm by 1.80 by 3.00cm

2007-02-09 18:37:09 · 6 answers · asked by ChristFirst00 2 in Chemistry

2007-02-09 18:34:46 · 1 answers · asked by Noeden May B 1 in Engineering

2007-02-09 18:34:08 · 7 answers · asked by DARSHANA V 1 in Mathematics

Researching black holes, I read that at certain points within the black hole, called Singularities, the laws of physics do not apply. Is this true, and how can these "laws" truly be called laws, if true?

2007-02-09 18:33:21 · 11 answers · asked by slick j 1 in Physics

Area = (Side Length Squared x Root 3) / 4
can anyone tell me what is this all about? what is the name for this formula? isn't the formula for triangle 1/2 BH?

2007-02-09 18:27:57 · 9 answers · asked by liangjizong22 1 in Mathematics

with pictures

2007-02-09 18:25:51 · 6 answers · asked by Sagar Shah 1 in Astronomy & Space

This is the question:
[ 2 -4 -1 | 0 ]
[ 4 -8 3 | 0 ]
[-3 6 5 | 0 ]

Please help me solve the above problem with gauss-jordan elimination. I'm facing problem half way through when i obtain the bottom two rows both having a leading entry of 0 as following :

[ 1 -2 -1/2 ]
[ 0 0 5 ]
[ 0 0 7/2 ]

did i do anything wrong above? Can someone please help me solve the above question and it will be much appreciated! THank you in advance!! :)

2007-02-09 18:24:20 · 5 answers · asked by Anonymous in Mathematics

2007-02-09 18:21:25 · 2 answers · asked by nisha 1 in Biology

a=b
a^2=ab
a^2-b^2=ab-b^2
(a+b)(a-b)=b(a-b)
a+b=b

2007-02-09 18:20:39 · 5 answers · asked by Blood 3 in Mathematics

2007-02-09 18:20:19 · 4 answers · asked by Lara r 1 in Chemistry

I am a begginer doing my first year of graduation. Actually I was not interested in Civil engineering.. But I got in to that only.. After I joined I found it interesting.. I want to learn more about it.. could u please help me??

2007-02-09 18:20:08 · 3 answers · asked by Avinash 1 in Engineering

2007-02-09 18:19:24 · 3 answers · asked by chaitali 1 in Zoology

This is a maths problem that has some easy bits and hard bits. It goes like this:

By using only the plus, multiply, bracket, subtract and divide signs, place them in the gaps to get the numbers 1 - 24

A sample row looks like this

1 2 3 4 = 1

So an example is:

1 + 2 + 3 + 4 = 10

and you have to get all of the numbers from 1-24

Good luck!

2007-02-09 18:19:19 · 3 answers · asked by Anonymous in Mathematics

would we just split appart from the continet or would we shrink?:-(

regarding the SAN ADREAS FAULT

2007-02-09 18:18:01 · 15 answers · asked by Anonymous in Earth Sciences & Geology

I mean it feels sometims It's more and then it seems we're the only one?

2007-02-09 18:17:34 · 7 answers · asked by Mz Darrion 1 in Astronomy & Space

2007-02-09 18:15:03 · 2 answers · asked by >() 1 in Biology