Science & Mathematics - 28 August 2007

2007-08-28 20:04:16 · 5 answers · asked by House of Cards 1 in Chemistry

i need to add the insoluble compound to the water and see the reaction which occurs but the susbstance should be found in the home enviroment and i need to analyse the relationship between the solubility of substances in water and the polar nature of the water molecule, thanks very much

2007-08-28 19:42:51 · 7 answers · asked by lost girl 1 in Chemistry

Could I take University/College (M level) math in gr. 11 and still become a doctor? I'm taking Data management university level math in grade 12. I'm in the peel school board and im trying for UofT in mississauga or Toronto.

2007-08-28 19:36:04 · 2 answers · asked by Anonymous in Medicine

The speed of light has been clocked at 186,000 miles per second. Even going that fast, it takes light from the son many minutes to get to earth, telling us that the sun is millions of miles away.

The Hubble space telescope has taken pictures of galaxies trillions of miles away. Each galaxy has billions of stars. Many stars have multiple planets, making billions of planets possible.

To get to the next closest star to our son, traveling at the speed of light, would take us 4.3 light years to get there because it is 25.8 trillion miles away. Imagine how long it would take us to get there by car.

Are we to believe that the trillions of miles of space were created for humans by a loving creator? Or is it more logical to believe that either there is no creator or the creator does not think much of us on our obscure little planet?

Is it logical to conceive of a creator large enough to have created the vastness of the universe and yet small enough to create the components of atoms.

2007-08-28 19:34:10 · 13 answers · asked by http://www.wrightlawnv.com 4 in Astronomy & Space

what is (8.84*10^(-15))/(.001232)?

2007-08-28 19:29:44 · 3 answers · asked by Winnie 3 in Chemistry

Find dy/dx of y = (2x+3)/(x-5)

2007-08-28 19:29:20 · 4 answers · asked by ppp 1 in Mathematics

lim (x^2-4)/(x+2)
x->-2

2007-08-28 19:25:20 · 2 answers · asked by ppp 1 in Mathematics

if there was ever a house on a section of land in my home town, is there a website that has maps of how a town looked years ago?

2007-08-28 19:23:25 · 1 answers · asked by pumpkin2 1 in Geography

2007-08-28 19:16:03 · 4 answers · asked by John Michael C 1 in Chemistry

What are the long term effects of fentanyl use?

I have a cousin who has peripheral neuropathy due to damage from chemotherapy. She takes the fentanyl suckers three times a day, they are 600 mcg. each. Does anyone know what the long term efffects of the use of fentanyl are?

2007-08-28 19:12:21 · 14 answers · asked by Anonymous in Medicine

please give a molecular explanation.

2007-08-28 19:12:12 · 1 answers · asked by John Michael C 1 in Chemistry

what is (8.84*10^(-15))/(.001232)?

2007-08-28 19:08:13 · 4 answers · asked by Winnie 3 in Mathematics

2007-08-28 19:01:15 · 7 answers · asked by ChArLeNe N 1 in Mathematics

2007-08-28 18:53:52 · 2 answers · asked by Anonymous in Other - Science

how would you solve:

12x^3+22x^2+6x

i am completely lost. can anyone tell me how to solve it?

2007-08-28 18:52:15 · 6 answers · asked by ineedanswers 3 in Mathematics

What it is the biggest snowstorm in the northeast in recorded history? Number of inches, and date?? I am looking for a one time snowstorm, not the total for the year. Regards-Bob.

2007-08-28 18:42:07 · 1 answers · asked by bobbovienzo@sbcglobal.net 3 in Weather

2007-08-28 18:37:53 · 5 answers · asked by fulltank 2 in Biology

I read from the resource book say that it ends at the small intestine but my teacher say that it is the large intestine.so confuse????can anyone help pls??????

2007-08-28 18:27:57 · 4 answers · asked by Blur Blur Gal 2 in Other - Science

A category 5 (I think) hit the island of St Maarten about 10 years ago - what was the name and the year?

2007-08-28 18:19:48 · 3 answers · asked by Sue Z 1 in Weather

what about screaming, blinking? the facial nerves are near the brain...how is spinal cord involved in reflex action in these activities?

2007-08-28 18:14:13 · 2 answers · asked by Anonymous in Biology

2007-08-28 18:05:31 · 3 answers · asked by Mr. Goodnight. 3 in Zoology

i have no idea how to do these 2 problems and i have one more try to get them right because its online. i need your help!

The density of aluminum is 2.70 g/cm3. A square piece of aluminum foil, 8.0 in. on a side, is found to weigh 2.575 g. What is the thickness of this foil, in millimeters?

and

The accompanying illustration shows a 100.0 mL graduated cylinder half-filled with 6.8 g of diatomaceous earth, a material consisting mostly of silica and used as a filtering medium in swimming pools. How many milliliters of water are required to fill the cylinder to the 100.0 mL mark? The diatomaceous earth is insoluble in water and has a density of 2.2 g/cm3.

thanks in advance for any help i really appreciate it!

2007-08-28 18:05:29 · 3 answers · asked by red_bullgivesyouwings 2 in Chemistry

2007-08-28 18:04:21 · 1 answers · asked by Terra 6 in Medicine

2007-08-28 18:03:27 · 4 answers · asked by Mr. Goodnight. 3 in Zoology

2007-08-28 18:00:19 · 4 answers · asked by Hope 1 in Geography

I know that the answer is 1296 (including squares) and that the equation is (1+2+3...8)(1+2+3...8)... but how does this formula work. Explain

2007-08-28 17:52:00 · 1 answers · asked by Anonymous in Mathematics

Your manager is very please with your presentations and being able to show your calculations in a detailed fashion. He has asked that you help him prepare for the upcoming company summit. Before you get together, he has asked that you give him a little review on polynomial functions and how you would apply them to everyday use. You have thought about the different methods in showing him the different methods used in calculating the functions and have drawn up an action plan.

To exercise your skills, you are to perform the following using different tools available to you (e.g. Excel spreadsheet, graphing calculator, etc.) and write and explanation on your findings:

The graph of: f(x)= 0
The graph of: f(x) = a0 , where a0 ≠ 0
The graph of: f(x) = a0 + a1x , where a1 ≠ 0
For each of the three above:

What does the graph look like- describe the x placement
What is the graph function called?
Give an example of a number you could place in for the variable x, and describe the shift from the original graph. Remember to note what your value you are calculating for the variable x.

2007-08-28 17:51:45 · 1 answers · asked by Regina F 1 in Physics

What is the best idea to wear for physician shadowing? I am a female do I need to were a buisness suit or are slacks or a dress ok??? Any suggestions- the doctor is a general family practice and said "dress professionally"

2007-08-28 17:50:16 · 3 answers · asked by i_luv_vball21 2 in Medicine

Water is the most important substance on Earth. One reason for its usefulness is that it exists as a liquid over a wide range of temperatures. In its liquid range, water absorbs or releases heat directly in proportion to its change in temperature.

Consider the following data that show temperature of a 1,000 g sample of water at normal atmospheric pressure as a function of heat supplied. A kJ can simply be thought of a unit of heat.


Temperature Heat Supplied
0 oC 0 kJ
10 oC 42 kJ
30 oC 126 kJ
50 oC 209 kJ
80 oC 335 kJ
99 oC 414 kJ
100 0C 420 kJ

Based on these data, please supply the following:
1. Provide a graph of the data. Is the graph sufficiently linear to allow prediction of heat supplied versus temperature in the range of 0–100 oC?
2. If so, use Microsoft Excel to provide an equation that relates heat, y, supplied to temperature, x, in the range of 0–100 oC.
3. Are the results consistent with the expected equation, heat = (1.00 cal/g oC

2007-08-28 17:43:35 · 1 answers · asked by Regina F 1 in Physics

If you grew up in a remote village somewhere on earth totally cut off from civilization how would you prove to the village chief that the earth was round using only the most primitive technology available.

2007-08-28 17:37:17 · 11 answers · asked by ? 1 in Astronomy & Space