Science & Mathematics - 25 January 2007

can little baby chicks live in mexico an if so where?
what do they eat?please i really need to no.please

2007-01-25 13:01:21 · 3 answers · asked by something 2 in Zoology

2007-01-25 13:01:15 · 7 answers · asked by Anonymous in Astronomy & Space

what is the radius of an automobile tire that turns with a frequency of 11Hz and has a linear speed of 20.0 m/s?

2007-01-25 13:00:57 · 3 answers · asked by globesk8er999 1 in Physics

The first line is y=6221X-81132
the second is y=60000x-81132

if you cant find that then try this one:
first line is 850000=6221x-81132
second line is 850000=60000x-81132

2007-01-25 12:59:13 · 6 answers · asked by ? 3 in Mathematics

2007-01-25 12:58:50 · 2 answers · asked by Anonymous in Biology

I really need help with this question on my homework, I'm not so good in science. : )

2007-01-25 12:58:46 · 3 answers · asked by YYYpunk 3 in Other - Science

a.)cellular respiration
b.)using oxygen
c.)using nitrogen
d.)fermentation

As an endospore,a bacterium
a.)producees toxins
b.)dries out
c.)causes diseases
d.)is protected

2007-01-25 12:57:13 · 4 answers · asked by Anonymous in Biology

I have to find the domain and range in this problem:

y = radical (4 - x^2)

Domain:
4 - x^2 greater than or equal to 0
-x^2 greater than or equal to -4
x^2 less than or equal to 4
x less than or equal to +/- 2

My answer key says the answer is [-2, 2]. Why don't we use this same "+/-" logic for the range? LOOK BELOW.

Range:
y^2 = 4 - x^2
y^2 - 4 = -x^2
x^2 = -y^2 + 4
x = radical -y^2 + 4

-y^2 + 4 greater than or equal to 0
-y^2 less than or equal to -4
y^2 less than or equal to 4
y less than or equal to +/- 2/

I was marked wrong on a test and this was the right answer:

The *right* answer for this is simply y is less than or equal to 2 (no +/- sign). AKA (- infinity, 2]

WHY IS IT NOT LIKE THE DOMAIN?

2007-01-25 12:57:09 · 4 answers · asked by Anonymous in Mathematics

rad/s about a fixed vertical axis through its center. A 0.349 kg piece of putty is dropped vertically at a point 0.810 m from the cylinder's center of rotation and sticks to the cylinder. What is the final angular speed of the system? Answer in units of rad/s.

2007-01-25 12:56:08 · 2 answers · asked by drdagher89 2 in Physics

George Lucas pioneered the use of digital movie cameras with the most recent Star Wars film. Assume that Lucas's camera has a swappable 80 GB hard drive (remember: 1 GB = 1024 MB, 1 MB = 1024 KB, 1 KB = 1024 Bytes, and 1 Byte = 8 bits), that it records each pixel in x-bit color, that there are 26 frames recorded per second, and that each frame is recorded in 1600x1200 resolution.

1.Create a polynomial function that gives the number of minutes of video that can be recorded before swapping in a new hard drive, as a function of x (the number of bits used to encode the color of each pixel)

2.Evaluate this function for x = 32 (32-bit true color)

All I can get up to is....First, each frame would require x bits for each of the 1600*1200 = 1,920,000 pixels.
The number of bits required per second would therefore be
(x bits/pixel)(1,920,000 pixels/frame)(26 frames/second)
= 49,920,000x bits/second

any help would be appreciated, I have been racking my brain all night. THANKS!!!

2007-01-25 12:56:06 · 1 answers · asked by ruthnsnare 2 in Mathematics

2007-01-25 12:56:01 · 3 answers · asked by Anonymous in Biology

Struggling with a simple chart with a few words then arrows to show what happens in CHF

2007-01-25 12:55:13 · 3 answers · asked by nursetobe 2 in Medicine

Also, what is hydrolysis. How do they both work and what do they do?

2007-01-25 12:54:58 · 2 answers · asked by Anonymous in Biology

Is it because of the thermohaline currents? the salinity?

2007-01-25 12:54:56 · 3 answers · asked by wash_yer_nuts 3 in Earth Sciences & Geology

From how far can a person see the smoke/ash cloud of a volcano?
[if you have the exact figure, that would be great help!]
Thanks!

2007-01-25 12:54:18 · 3 answers · asked by Izela 2 in Geography

How do you determine how many atoms of each type are there in:
2Ca(OH)2?
And in 3Ba(CLO3)2?

2007-01-25 12:53:51 · 3 answers · asked by Rosy 2 in Chemistry

There are 8 points.
Is there a simple way of finding the line?
Thanks!

2007-01-25 12:51:08 · 4 answers · asked by carr 3 in Mathematics

Can anybody help me? This is due on Friday the 26th but still umm.. the question is Find the radius of a circle with a circumfernce of 2/3.
HELP, and please give me the steps while doing the problem

2007-01-25 12:50:48 · 7 answers · asked by Amy L 2 in Mathematics

Find the volume of the solid whose base is the region bounded by y = x^2, y =x, x = 2 and x = 3, where cross-sections perpendicular to the x-axis are squares. I got a volume of (481*pi)/30, I was wondering if some could help me and see if thats right. Thank you.

2007-01-25 12:49:00 · 4 answers · asked by Johnny O 1 in Mathematics

2007-01-25 12:48:40 · 25 answers · asked by acidburn 1 in Astronomy & Space

I received my Donor Identification card from the Central Blood Bank the other day, in which I learned my blood type for the first time (it's stated on the card; it's B-). My parents have O+ and AB+ as blood types. How the heck do I have B-? And how come, if that was so, why didn't that blastofetalis thing occur from having different Rh factors being transferred through the placenta? Or is it just a mistake do you think? I took AP Biology, but I never really encountered this situation. Thoughts?

2007-01-25 12:48:14 · 6 answers · asked by Anonymous in Biology

_____9.Bacterium with a new genetic makeup is produced.
____10.Circular chromosomes is copied.
____11.Genetic material is transferred through a pilus.
____12.Two identical cells are produced.
____13.Sexual reproduction occurs.

2007-01-25 12:47:15 · 2 answers · asked by Anonymous in Biology

2007-01-25 12:43:48 · 18 answers · asked by kimberlinus 1 in Earth Sciences & Geology

-f(3/2)
f(x)=absolute value of(2x+3)

thanks for your help

2007-01-25 12:43:37 · 3 answers · asked by Anonymous in Mathematics

I was able to solve the first part of this problem pretty easily, but I have no idea how to approach part B. Can anyone assist with some guidance? (I'm not looking for an answer as I want to do that myself so I can learn the material). Thanks in advance.

Suppose that the resistance between the walls of a biological cell is 6.00 x 10^9 ohms.

A.) What is the current when the potential difference between the walls is 25 mV?

The answer to this 4.166x10^-12 Amperes.

B.) If the current is composed of Na+ ions (q = +e), how many such ions flow in 0.5 s?

I thought that maybe it had to do with the equation delta q= I(time), but I was apparently wrong.

2007-01-25 12:43:06 · 1 answers · asked by larkinfan11 3 in Physics

Solve the equation for x by using the natural logarithm function.

1.3^X = 8

I don't know how to solve it using the natural logarithm function (y = ln x).

2007-01-25 12:42:56 · 4 answers · asked by ellenangel364 3 in Mathematics

what are the reasons why students failed in their algebra subject.

2007-01-25 12:42:48 · 15 answers · asked by jhenzen mae c 1 in Mathematics

2007-01-25 12:42:44 · 5 answers · asked by jmayer8921 1 in Mathematics

a river otter i mean .as we all know, the sea otter gets around by clinging to the underside of fiddler crabs.

2007-01-25 12:42:28 · 5 answers · asked by Dan.E.P 1 in Zoology

Ok I'm not that bright...

A team of biology students investigate the relationship between temperature and number of cells for 3 differnet groups of cultured cells. What is the Independent and the dependent variable?

thanxs :D

2007-01-25 12:41:04 · 5 answers · asked by Commando Kick Ass 1 in Biology