Science & Mathematics - 6 November 2006

2006-11-06 09:17:10 · 7 answers · asked by sara 1 in Earth Sciences & Geology

I know it was around 4000 BC, but I can't find exactly who discovered it.

2006-11-06 09:15:45 · 5 answers · asked by frameshift13v3 1 in Earth Sciences & Geology

2006-11-06 09:15:16 · 3 answers · asked by Pinkigal 2 in Biology

2006-11-06 09:14:31 · 6 answers · asked by Stefan B 1 in Zoology

2006-11-06 09:14:20 · 2 answers · asked by KEITH G 4 in Geography

2006-11-06 09:12:56 · 6 answers · asked by KEITH G 4 in Geography

2006-11-06 09:12:01 · 7 answers · asked by Anonymous in Astronomy & Space

All other North American marsupial species have been long extinct & marsupials generally always lose out when in competition with placentals. Does the opossum occupy a specialized ecological niche that hasn't been filled by a placental species? Are there particular genetic or behavioral traits that enable this animal to survive? Thanx in advance for any info!

2006-11-06 09:11:56 · 8 answers · asked by ? 3 in Zoology

After water can not disolve any more of a powder and even more of a different powder is added is first powder added the only thing disolved in the water or is it a mix of them.

2006-11-06 09:10:08 · 1 answers · asked by Anonymous in Chemistry

2006-11-06 09:09:40 · 4 answers · asked by mylesbibbs 1 in Botany

a) Discrete
b) continuous

2006-11-06 09:09:27 · 3 answers · asked by Andres F 1 in Mathematics

he slope of the linearized acceleration vs. mass graph should be equivalent to the net force, and the slope of the acceleration vs. net force graph should be equivalent to one over mass. Explain why. Calculate the %error for each slope
how do i do this?
and for the % error i keep on getting 91% no matter how i tried

2006-11-06 09:09:10 · 1 answers · asked by mooshie 1 in Physics

I'm honestly in desperate need for help, if you're not here to help, then **** off.

2006-11-06 09:09:04 · 15 answers · asked by hawaiian_shorts91 3 in Mathematics

suppose that 50 mL of a solution of HCl in water was added to 450ml of an aqueous buffer that is 0.400 M in NaC2H3O2 and 0.800 M in HC2H2O2, and the new pH was found to be 4.15.

What is the molarity of the HCl solution??

Please show work, I'm a visual person so it helps me learn :)

2006-11-06 09:08:08 · 1 answers · asked by Anonymous in Chemistry

then i need to convert them into decimels

2006-11-06 09:07:40 · 12 answers · asked by Anonymous in Mathematics

2006-11-06 09:07:25 · 5 answers · asked by plg19632000 3 in Geography

Does anyone know what the differences in schooling and salary between a general sonographer, vascular sonographer, and a cardiac sonographer are?

2006-11-06 09:06:39 · 3 answers · asked by cocoalabean 2 in Medicine

How can we, the ordinary people do our bit to stop Tigers going extinct?

Did you know there are more Tigers in zoos than in the wild?

SAVE THE TIGERS!!!!!

2006-11-06 09:06:22 · 10 answers · asked by Ivana_Tinkle 2 in Zoology

I have saw this thing on tv that said about stigmata and spontaneous combustion and other stuff like that and was really intrigued. Can they really happen? If so how? _

2006-11-06 09:05:43 · 7 answers · asked by Holly 2 in Physics

I know why we dont fall down the earth when we are at the bottom (because of gravity) but when we are on the bottom of the earth how come we are not upside down nad it seems like we are normal?

2006-11-06 09:05:03 · 6 answers · asked by obiecy 2 in Astronomy & Space

how many outfit combinations are possible with 1 pair of sneakers,3 tee-shirts and 2 pairs of jeans?

2006-11-06 09:04:18 · 13 answers · asked by buzzybeans 1 in Mathematics

A service technician charges $46.25 for 5 hours of work and $75.25 for 9 hours or work. Assuming a linear relationship between the charge and the number of hours worked, what will be the charge for 15 hours of work?

2006-11-06 09:03:27 · 5 answers · asked by anonymous91 1 in Mathematics

then why is my blood type O- ?

2006-11-06 09:03:07 · 7 answers · asked by Anonymous in Biology

3/16 3/8 3/4 3/2
a)5th
b)6th
c)7th
d)8th
please tell how u got that answer for 10 points

2006-11-06 09:02:04 · 4 answers · asked by hmmm... 3 in Mathematics

Sonya has x amount of money.Bob has three times as much as Sonya has, less $14.62. Write an expression, using x that tells how much money Bob has.

2006-11-06 09:01:59 · 5 answers · asked by buzzybeans 1 in Mathematics

I have been interested in robotics for some time and would like to share thoughts and knowledge with others in my area. However there doesn't seem to be many people out there.

2006-11-06 09:01:05 · 1 answers · asked by boter_99 3 in Other - Science

1. look at the numbers which are cube (numbers= 166,199,125,169,127,and 162 which ones are cube
2. how would u round 7291 to the nearest hundred
3. a circle has a radius of 14yd what is the diameter and what is the circumference
4. the formula for the area of a circle is A=b times r squared {b is about 3} so what is the radius of r is 10 m and what is the radius of r is 5 feet
5. solve. 17/442 and 53/742

2006-11-06 09:00:22 · 2 answers · asked by lysette c 1 in Mathematics

Surgeons and hospital. Travel and accomodations.

2006-11-06 09:00:11 · 8 answers · asked by DAINTRY 1 in Medicine

My daughter has an algebra story problem and I cannot figure out how to solve it. She needs to show her work. PLEASE help???:

In 1803 the Louisiana Purchase added 8.28 X 10 (10 to the 4th power...I can't type it) square miles to the United States. The price of the land was 15 million. In 1853 the Gadsden Purchase added 2.96 X 10 (10 to the 4th power) square miles. The price was $10 million. Find the price per square mile of the Louisiana Purchase.

2006-11-06 08:59:15 · 11 answers · asked by Anonymous in Mathematics

1. If a nonezero net force is acting on an object, than the objects is defintely

A. At rest C. Being Accelerated

B. Moving with a constant veloctiy D. Losing Mass

2. A sailboat with a mass of 2.0 * 10^3 kg experiences a tidal force of 3.0 * 10^3N directed to the east and a wind force against its sails with a magnitude of 6.0 *10^3N directed toward the northewest (45 degrees N of W). What is the magnitude of the resultant acceleration of the boat? (My answer was 4.7 m/s^2)

3. A crate is carried in a pick up truck traveling horizontally at 15.0 m/s. The truck applies the brakes for a distance of 28.7m while stopping with uniform adcceleration what is the coefficient of static frictiion between the crate and the truck bed if the crate does not slide?

A. .400 C. .892
B. .365 D. .656

4. what is the magnitude + direction of the net external force on the rope 75 n to the left and 102 n to the right.
thanks in advance.

2006-11-06 08:56:47 · 2 answers · asked by strawberrylollipop12345 1 in Physics