Science & Mathematics - 5 November 2007

2007-11-05 04:08:35 · 4 answers · asked by Deannapril H 1 in Mathematics

(x[1]+x[2]+x[3]+....+x[n-1]+x[n])^(1/(n)) < (x[1]+x[2]+x[3]+....+x[n-1]+x[n])/(n)

If you don't understand the inequation abouve, you can view the the inequation at
http://img100.imageshack.us/img100/2145/image006dv8.jpg

2007-11-05 04:05:13 · 3 answers · asked by kerry 2 in Mathematics

2007-11-05 04:04:04 · 5 answers · asked by Meggy 2 in Earth Sciences & Geology

I don't really get what ohm's law is. And how do we know if one is ohmic conductor or non-ohmic conductor? Why is light globes non-ohmic conductor?

2007-11-05 04:03:58 · 5 answers · asked by Anonymous in Physics

The average value of a certain type of automobile was $14,040 in 1994 and depreciated to $4140 in 1999. Let y be the average value of the automobile in the year x, where x = 0 represents 1994. Write a linear equation that models the value of the automobile in terms of the year x.


a. y = -1980x - 5760
b. y = -1980x + 4140
c. y = -1 / 1980x - 4140
d. y = -1980x + 14, 040

2007-11-05 04:02:44 · 2 answers · asked by . 1 in Mathematics

6x+6y=-2
y=-x

2007-11-05 04:00:13 · 5 answers · asked by Anonymous in Mathematics

Does anyone know the pathfinder website where I can get a topographical image of Gusev crater?
Also I understand that the crater might have been filled with water but I cant see anythin interestin in the pix I see...can anyone explain some characteristics that Im missin when i look at the pix>?

2007-11-05 03:59:07 · 2 answers · asked by Wizzpa 1 in Astronomy & Space

whenever i sit with other subjects i am ok but with maths i just have a nervius breakdown I am a class10th student and am fearing what to do at the time of baords plsplsplspls help me out.

2007-11-05 03:58:53 · 17 answers · asked by ashutosh t 2 in Mathematics

Here is the actual ?

Jill decided to buy a new TV for her apartment. She found a TV originally priced at $500 with a 15% discount. If she pays 6% sales tax, what will be her total cost of the TV?

2007-11-05 03:58:43 · 10 answers · asked by DNicolasL 2 in Mathematics

Parallel to y = 9, through (7, 12)

2007-11-05 03:57:02 · 4 answers · asked by . 1 in Mathematics

2007-11-05 03:54:55 · 4 answers · asked by hippychick734 1 in Earth Sciences & Geology

2007-11-05 03:54:38 · 9 answers · asked by Anonymous in Mathematics

These are the questions that I was wondering if you could help me out on:
)Ex1)Derive formula for linear accelerated motion:
xfinal = (xintial) + (vinitial)t + 1/2at^2
2)Derive formula for circular motion:
a=v^2/r
3)Show that energy conservation is independent of the shape of the surface.
Consider an incline and prove for arbitrary shape. Consider conserved forces.

Any insight you could offer me would be greatly appreciated.
Thanks!

2007-11-05 03:52:45 · 1 answers · asked by Amber G 2 in Physics

The ratio of girls to boys in a school is 13:12
There are 572 girls in the school
How many pupils are there in the school together ??

Please show working!!

2007-11-05 03:51:41 · 14 answers · asked by Millie E 1 in Mathematics

2007-11-05 03:50:49 · 3 answers · asked by Anonymous in Biology

http://i242.photobucket.com/albums/ff276/carolineboy/physics2.jpg

I got:

1B,2B,3A,4A,5D,6C,7D,8D

2007-11-05 03:50:45 · 2 answers · asked by Joe T 1 in Physics

Hi everybody. I'm currently studying for a chem test and am stuck on this problem:

convert 1.76 X 10 to the negative 3 mol of cesium to grams.

The answer is 2.34 X 10 to the negative 1 grams.....but I can't figure out why.

Thanks so much in advance!

2007-11-05 03:49:07 · 5 answers · asked by Gym♥RAT♥ 3 in Chemistry

2007-11-05 03:46:32 · 5 answers · asked by Anonymous in Mathematics

a) Volatility of a liquid increases with increasing temperature

b) The equilibrium vapor pressure of a liquid results from evaporation exceeding condensation

c) The equilibrium vapor pressure of a liquid changes with temperature

d) The vapor pressure of a liquid at its normal boiling point is strongly affected by the type of molecules the liquid consists of

2007-11-05 03:46:08 · 8 answers · asked by unique_fantasy 1 in Chemistry

I want to make small electric motor at any cost. At present I have not deceived its size and its purpose. I have too much interest to do this. I will purchase any machine require in this process. I have primary knowledge of electric motor, i.e. how it works. But want to know total process.

2007-11-05 03:45:52 · 3 answers · asked by zaid 1 in Engineering

TAI: TCB: TCG: TDB: also, please let me know the other degress possible the Sun can be, on the eliptic, to the Earth other than 90 or 270 degress twice a year?

2007-11-05 03:41:37 · 4 answers · asked by aprilmacfadden 3 in Astronomy & Space

what is x?

2007-11-05 03:41:11 · 8 answers · asked by Bell 1 in Mathematics

2007-11-05 03:40:28 · 8 answers · asked by Chevonte G 1 in Botany

What happens when a functional group is added to a carbon chain?


Thanks for all the help!

2007-11-05 03:40:15 · 2 answers · asked by Teresa 2 in Biology

How do I establish this identity??

2007-11-05 03:39:22 · 4 answers · asked by melissa_quintana1516 1 in Mathematics

Trisomy 21 or Down syndrome occurs when there is a normal diploid chromosomal complement of 46 chromosomes, plus one extra copy of chromosome 21. Such individuals thus have 47 chromosomes. There is impaired fertility of both sexes, but females are more likely to be fertile than males. If children are born to a female with Down syndrome and a male with the normal complement of 46 chromosomes, what proportion of the offspring will be expected to have Down syndrome?

2007-11-05 03:38:46 · 2 answers · asked by Anonymous in Biology

2007-11-05 03:38:34 · 5 answers · asked by Deannapril H 1 in Mathematics

Despite its name, the Pacific sea horse is actually a type of fish. Its horse-shaped head gives it its name. This creature lives in the Pacific waters off the west coast of the Americas, from Peru to Southern California. Like many other ocean fish, sea horses face the constant challenge of losing water to their saltier environment.

When a Pacific sea horse’s body loses water to its environment, which process is responsible?

a active transport
b osmosis
c endocytosis
d exocytosis


14. When the sea horse eats a meal, its body breaks down organic molecules in the food. Some of those molecules enter cellular respiration, which ultimately produces the molecule ATP. In which part of the sea horse’s cells is ATP produced?

a mitochondria
b Golgi bodies
c vacuoles
d lysosomes

2007-11-05 03:37:55 · 1 answers · asked by wish on a star 1 in Zoology

2007-11-05 03:35:11 · 3 answers · asked by DON 1 in Earth Sciences & Geology

Is there some kind of math symbol? Or would greater than/less than be appropriate?

2007-11-05 03:33:16 · 3 answers · asked by monicanena 5 in Physics