Science & Mathematics - 27 July 2007

216
84
700
135
18b squared c3

2007-07-27 11:24:56 · 7 answers · asked by Anonymous in Mathematics

2007-07-27 11:21:18 · 4 answers · asked by Anonymous in Astronomy & Space

please, i really need this.

2007-07-27 11:21:04 · 3 answers · asked by Anonymous in Mathematics

I've been wondering for a while if using your feet to write/open things/pick things up/ect. will increase the percantage you use your brain.

2007-07-27 11:18:45 · 2 answers · asked by Anonymous in Medicine

like say someone had just touched a hepatitis fluid and then touched a door knob.
Someone else comes along and touches the door knob.
Can THAT person get hep?

2007-07-27 11:17:37 · 9 answers · asked by Anonymous in Medicine

2007-07-27 11:16:48 · 4 answers · asked by poweret30002 1 in Mathematics

Science and medicine. A passenger train can travel 325 mi in the same time a
freight train takes to travel 200 mi. If the speed of the passenger train is 25 mi/h
faster than the speed of the freight train, find the speed of each

2007-07-27 11:10:14 · 5 answers · asked by vadataborn 2 in Mathematics

4x-6y=12
8x+2y=6

2007-07-27 11:07:25 · 5 answers · asked by Deandra 1 in Mathematics

Does someone have to be really smart to pursue a career in anesthesiology? And is it true that they get sued alot?

2007-07-27 11:05:24 · 2 answers · asked by ashley r 3 in Medicine

Ka=1.7*10^-1

Answer choices:
a) 94.6%
b) 55.2%**correct
c) 27.1%
d) 18.7%

I couldn't get it to work out to that percent. Thanks in advance for any help.

2007-07-27 10:55:26 · 2 answers · asked by triciawin87 2 in Chemistry

Perform the indicated operation. Simplify if possible.

9 / x + 6

9 + 6x / x

9x + 6 / x

9x + 6

9 + 6x

2007-07-27 10:54:51 · 1 answers · asked by Anonymous in Mathematics

Temperature at noon: 24 F
Temperature now 8 F

2007-07-27 10:50:01 · 5 answers · asked by yomo g 1 in Mathematics

There's oxygen in water, so why doesn't fire burn in it?

2007-07-27 10:48:59 · 9 answers · asked by anydenney 2 in Chemistry

Perform the indicated operation. Simplify if possible.

9y^2 / y - 1 + - 9y / y - 1

9y / y - 1

9y( 9 y + 1 ) / y - 1

9y

0

2007-07-27 10:47:16 · 5 answers · asked by Anonymous in Mathematics

lie in the plane of greenwich meridian and are tangent to the surface of Earth one at north pole, and the other at south pole.

What is the angle between their trajectories at infinity?
(Ignore rotation of Earth)

2007-07-27 10:46:10 · 6 answers · asked by Alexander 6 in Physics

32
24
27
42

ten points to anyone who does 2 Q'sChoose the best estimate 26% of 81

2007-07-27 10:42:36 · 3 answers · asked by yomo g 1 in Mathematics

Perform the indicated operation. Simplify if possible.

x + 4 / 14 + 9 / 14

x + 13 / 28

13x / 28

x + 13 / 14

13x / 14

2007-07-27 10:41:51 · 4 answers · asked by Anonymous in Mathematics

Ions and Ionic Compounds. (Question 8.46)

Use the following data to estimate ΔH°f for magnesium fluoride.

Mg(s) + F2(g) MgF2(s)

Lattice Energy -3916 kJ/mol
First ionization energy of Mg 735 kJ/mol
Second ionization energy of Mg 1445 kJ/mol
Electron affinity of F -328 kJ/mol
Bond energy of F2 154 kJ/mol
Enthalpy of sublimation of Mg 150. kJ/mol

ΔH°f =_______kJ/mol

2007-07-27 10:40:44 · 1 answers · asked by Anonymous in Chemistry

Perform the indicated operation. Simplify if possible.
2^x / x ^2 - 7x + 12 - 8 / x^2 - 7x + 12

2 / x - 3

2 / x - 4

2 ( x + 4 ) / ( x - 4) ( x - 3 )

2 ( x - 4 ) / (x + 4 ) ( x - 3 )

2007-07-27 10:39:00 · 3 answers · asked by Anonymous in Mathematics

2007-07-27 10:38:04 · 25 answers · asked by Anonymous in Astronomy & Space

i go for the alternative medicine, so my doc is a naturalpathic one, He says that using a very bright light and powerful microscope, he can detect sicknesses by observing the eyes. Can they also tell if someone has had an abortion?

2007-07-27 10:36:07 · 6 answers · asked by Anonymous in Medicine

with a battery aliminum foil and a lightbulb (100 watts)

2007-07-27 10:34:16 · 3 answers · asked by ? 1 in Engineering

t-storms, tornadoes, anything

2007-07-27 10:33:55 · 11 answers · asked by Anonymous in Weather

2007-07-27 10:29:32 · 7 answers · asked by boulder141 1 in Other - Alternative

A few decades back many people used to get blood letting by leeches for some health concerns?Is there some scientific research which supports this type of blood letting performed on human bodies for serving any health purposes? '

2007-07-27 10:25:55 · 6 answers · asked by tusharcosmic 1 in Medicine

I know some of the properties of light from studying and my own ideas, but I don't know what it is, just some of the properties. I would like to know exactly how charge and light (Em radiation) work together. I know that charge on the electron can absorb quanta of light, but I don't know how the light acts three dimensional in waves of magnetism and light, it seems to be a layered effect because charge turns into magnetism when in motion and vice versa. I see some other things, but I don't know how to describe them. I've only learned some trigonometry about the sine wave and the pythagorean identities, but I haven't ventured in enough to understand 3D waves or electromagnetism.

2007-07-27 10:25:03 · 3 answers · asked by Anonymous in Physics

its math question please answer back ASAP

2007-07-27 10:23:27 · 12 answers · asked by SassyChica 1 in Mathematics

If somebody is color blind are all colors "distorted" or just a few? Are there different degrees of color blindness? I've heard of people that only see shades of grey, no bright colors. But I've heard of others that seem to only have problems with only specific colors. Anybody know about this?

2007-07-27 10:20:45 · 18 answers · asked by Simba 7 in Medicine

2007-07-27 10:15:33 · 4 answers · asked by Robert G 2 in Mathematics

is it 0.3
0.15
15
60

2007-07-27 10:14:45 · 13 answers · asked by yomo g 1 in Mathematics