Science & Mathematics - 19 January 2007

1) Milk sugar is changed to lactic acid when milk ferments or sours.
C12H22O11 + H2O ------> C3H6O3

2007-01-19 19:50:17 · 4 answers · asked by Anonymous in Chemistry

A current-carrying conductor placed in a magnetic field will produce a force in a direction perpendicular to the direction of the current and the field based on flux density x current ampere x length of conductor (in Newton).

My question is...

Doesn't that mean volt is not considered, which means we can use a transformer to decrease the voltage to increase the current (retain the watt) and thus produce more force, which also means we can feed back the increased force as input and produce perpetual motion? Please explain.

2007-01-19 19:40:43 · 3 answers · asked by Anonymous in Physics

It seems that EVOLUTION is a stupid theory if it is based on an exhausted and comprenhensive lab works, detailed testing, and from mathematical prognosis of the possibilty of its realization. The Only way possible for evolution to exists are through story telling and imagining. So, Is EVOLUTION theory a stupid "scientific" theory, BUT has a GOOD STORY line MAKING multi million dollar grant?

2007-01-19 19:39:35 · 7 answers · asked by Anonymous in Biology

templars were good at math huh?

2007-01-19 19:39:10 · 3 answers · asked by fuck 3 in Mathematics

2007-01-19 19:37:38 · 5 answers · asked by steffimalcampo91 5 in Mathematics

2007-01-19 19:36:21 · 11 answers · asked by rita 1 in Engineering

2007-01-19 19:35:01 · 14 answers · asked by steffimalcampo91 5 in Mathematics

and simple water freezes later

2007-01-19 19:33:58 · 3 answers · asked by akshay_snakes 1 in Physics

2007-01-19 19:33:42 · 7 answers · asked by steffimalcampo91 5 in Mathematics

2007-01-19 19:33:32 · 4 answers · asked by JBWPLGCSE 5 in Weather

2007-01-19 19:31:59 · 6 answers · asked by steffimalcampo91 5 in Mathematics

The length of a simple pendulum is 0.66m, the pendulum bob has a mass of 310 grams, and it is released at an angle of 12 degree to the vertical.

1. What is the pendulum bob's speed when it passes through the lowest point of the swing?

2. What is the total energy stored in this oscillation, assuming no losses?

Please show me how to do these problems step by step. Thank you very much. =)

2007-01-19 19:31:20 · 3 answers · asked by Endless Moment 1 in Physics

i mean, the name of the force. help me..!!

thanks gorgeous! love yah!

2007-01-19 19:29:33 · 5 answers · asked by Anonymous in Physics

What would be the energy consumption to produce one wind turbine, taking into account absolutely everything, from the design engineer's power consumption on his pc to the manufacture of metal or plastic parts to the to the energy consumption of the cement manufacture for the concrete base?
How long would it take for this turbine to produce a energy "payback" ?

2007-01-19 19:28:55 · 6 answers · asked by Mark S 4 in Engineering

how can bat avoid obstacles its path while flying in the dark at bullet speed?

2007-01-19 19:27:26 · 7 answers · asked by Gonzales 1 in Zoology

May I have the answer by tommorow please

2007-01-19 19:27:17 · 4 answers · asked by J 1 in Physics

2007-01-19 19:19:31 · 9 answers · asked by tboyd322001 3 in Zoology

2007-01-19 19:19:14 · 14 answers · asked by Anonymous in Other - Alternative

why does menstual blood keep my plants so healthy?

2007-01-19 19:19:07 · 8 answers · asked by fuck 3 in Biology

in an DC circuit how can I obtain -48V

2007-01-19 19:16:42 · 4 answers · asked by george g 1 in Physics

2007-01-19 19:14:28 · 6 answers · asked by Anonymous in Physics

grains of fine california beach sand are approximately spheres with an average radius of 50 um (micro-meters = 10^6) and are made of silicon dioxide. A solid cube of silicon dioxide with a volume of 1.00 m^3 has a mass of 2600 kg. what mass of sand grains would have a total surface area(the total area of all the individual spheres) equal to the surface area of a cube 1.00m on an edge?

2007-01-19 19:11:41 · 2 answers · asked by mathlover 2 in Physics

i heard somewhere space was curved a while back then i heard from somewhere else it was time that was actually curved i would like to know what is curved time, space or both and why?

2007-01-19 19:09:19 · 10 answers · asked by das_ubermann 2 in Astronomy & Space

2007-01-19 19:06:20 · 5 answers · asked by matthewvdm 1 in Chemistry

whenever i walk in forests and look at mushroom formations, they fascinate me. there are so very many of them, thousands not categorized even to this day. i would like you to tell me all you know about these interesting plants. so many are poisonous to humans, but would they then be poisonous to other creatures? anything you can tell me about their age in the evolution of our plantlife, when they were originally noted, what has been said of them as they relate to the chain of life will help me understand more.

2007-01-19 19:06:15 · 6 answers · asked by Louiegirl_Chicago 5 in Botany

2007-01-19 19:05:28 · 6 answers · asked by Gonzales 1 in Medicine

is 40% rain alot or 50

2007-01-19 19:04:40 · 17 answers · asked by Anonymous in Weather

Solve for a & b ìf 2x²-12x+9=2(x-a)²+b

Another one:
The expression 3x²-x-9 is rearranged into the form:
a(x+2)²+b(x+2)+c. What are the values of a,b and c?

I would appreciate explanations and working.

2007-01-19 19:04:00 · 3 answers · asked by Anonymous in Mathematics

2007-01-19 19:02:30 · 4 answers · asked by dayah_2111 1 in Physics

My feet stink. I can smell the odor rising like hot steam from my feet. What is the name of the molecule/compound that makes for this funky odor? IUPAC/Systematic/Common names welcome. Thanks

2007-01-19 19:01:28 · 4 answers · asked by Phillip R 4 in Chemistry