Science & Mathematics - 12 November 2006

2006-11-12 14:02:56 · 1 answers · asked by Anonymous in Chemistry

2006-11-12 14:02:46 · 5 answers · asked by Anonymous in Biology

How many types of atoms can you expect to find in a pure sample of any element?

2006-11-12 14:01:04 · 3 answers · asked by J 1 in Chemistry

1.Find the slope of the tangent of the hyperbola

x²/16-y²/4=1

at the point R(5,-3/2)


A.5/6
B.-(5/6)
C.6/5
D.-(6/5)


2.Write in polar coordinates the equation y=3x+5

A.r=3 cos 0+5
B.r=3sin 0 +5 cos 0
C.r=5/ sin 0-3 cos 0
D.r= 3/sin 0-cos 0

2006-11-12 14:00:07 · 2 answers · asked by hitman 1 in Mathematics

2006-11-12 13:59:57 · 5 answers · asked by khalid a 1 in Mathematics

How many atoms are there in one molecule of H3PO4? 8 How many atoms of each element are there in this molecule

2006-11-12 13:58:50 · 1 answers · asked by J 1 in Chemistry

2006-11-12 13:56:33 · 5 answers · asked by kimmie082krunk 1 in Chemistry

2006-11-12 13:56:28 · 5 answers · asked by hillbillij 1 in Mathematics

List the factors...PLEASE!

2006-11-12 13:54:14 · 6 answers · asked by Anonymous in Mathematics

2006-11-12 13:53:41 · 13 answers · asked by rm 1 in Physics

some places list it as Entomophobia under bug phobia but I can't find the one for roach

for ex.:
fear spiders (arachnophobia) or a fear of bees (apiphobia).

2006-11-12 13:53:00 · 6 answers · asked by Evel Man 3 in Zoology

Concept: Solving Differential Equations

Let (d^2y)/(dx^2) =6x.

a) find a solution to the differential equation that is continuous for -infinity < x
b) How many functions like this are there? How do you know?

Thank you SO MUCH in advance! :)

2006-11-12 13:52:39 · 1 answers · asked by djibouti1989 1 in Mathematics

its a skill testing question please help me out
thanks.

Skill Testing Question:
(3+10)x(24-8) =
(3 plus 10) multiplied by (24 subtracted by 8)

2006-11-12 13:52:29 · 16 answers · asked by a w 1 in Mathematics

2006-11-12 13:50:55 · 6 answers · asked by Baby Eats World 2 in Zoology

An elevator starts from rest with a constant upward acceleration and moves 1m in the first 1.6s. A passenger is holding a 3.1kg bundle at the end of a vertical cord.
The acceleration of gravity is 9.8m/s^2.
What is the tension in the cord as the elevator accelerates? Answer in units of N.

2006-11-12 13:50:08 · 2 answers · asked by Anonymous in Physics

what happens to the size of the associated ions: e.g. Nat --> Mg2+ --> Al3+

2006-11-12 13:49:46 · 3 answers · asked by Tim H 1 in Chemistry

I can not do fractions at all please explain!

2006-11-12 13:48:41 · 13 answers · asked by momoftwins1986 1 in Mathematics

how does temp. effect cellular respiration in mammals

2006-11-12 13:48:33 · 1 answers · asked by pEter 1 in Biology

2006-11-12 13:47:22 · 3 answers · asked by Anonymous in Chemistry

2006-11-12 13:44:29 · 5 answers · asked by maisaroni 1 in Physics

2006-11-12 13:44:28 · 1 answers · asked by airheadkj 3 in Biology

What happens to the size of the metal ions as you go down group I? Why?

2006-11-12 13:42:53 · 2 answers · asked by Tim H 1 in Chemistry

2006-11-12 13:42:50 · 4 answers · asked by Anonymous in Astronomy & Space

okay... i'm translating this from japanese to english, so i dunno how much you're gonna understand... but plz try...

There is a two-digit number. The sum of the tenth number (the one on the left... like in 10 it is 1) and the ones number (like in 10 it is 0) is 9. The tenth number is 1 more than 3 times the ones number.

What are the two numbers in the number?

2006-11-12 13:42:44 · 7 answers · asked by Seira T 1 in Mathematics

2006-11-12 13:42:29 · 17 answers · asked by Anonymous in Astronomy & Space

2006-11-12 13:42:22 · 8 answers · asked by Syrenia-Denise 1 in Astronomy & Space

Ca(No3)2 + Na2CO3 --> CaCO3 + NaNO3

2006-11-12 13:41:19 · 3 answers · asked by untilyoucamealong04 3 in Chemistry

Did you know that no snakes are not allowed or found in hawaii because if they were there they would kill all living livestock... reason being is because snakes would have no known predators in hawaii???

2006-11-12 13:41:18 · 6 answers · asked by chelgirl87 2 in Zoology

An experiment took place in which an arrow was shot against a target and the distance and velocities were measured. The Overall % of the arrow kinetic energy transferred to the target as kinetic energy was 7.2%.

What happened to the original kinetic energy of the arrow? Give at least four possible ways in which this kinetic energy could have been lost.

would the mean lost into heat and sound? I don't really understand what they're asking when saing "four possible ways". any help?

2006-11-12 13:41:04 · 2 answers · asked by Anonymous in Physics

On the surface of Mars, a stone is tossed upward with an initial velocity of 40 ft/sec from a height of 6 feet above the surface of the planet. Its height is given by the function H(t)= -6.5t^2 +40t+6, where t is in seconds. How many seconds after the stone is released will it reach its maximum height? What is the stone's maximum height?

2006-11-12 13:38:53 · 5 answers · asked by leksa27 2 in Mathematics