Science & Mathematics - 5 November 2007

does anyone know where I can find some info on CPR? I need to give a presentation about it and I want to know if anyone knows any good websites where I can get some info on it

2007-11-05 16:59:47 · 2 answers · asked by crazymonkey 1 in Medicine

2007-11-05 16:56:58 · 11 answers · asked by kj_anto 1 in Medicine

Buzz Adrin and Neil Armstrong said that they saw an Alien space staion there and they were told to leave and not come back. What do you think? Read this and decide
http://www.ufocasebook.com/moon.html

2007-11-05 16:56:39 · 20 answers · asked by Rhiannon2 2 in Astronomy & Space

Could someone please help with the following questions?

Gases usually possess negative volumes when the temperature falls below -273.15K.
I believe this is false?

A glass column is filled with mercury and inverted in a pool of mercury. The mercury column stabilized at a height of 735mm above the pool of mercury. What is the pressure at the atmosphere?
I think this would be 0.967 atm?

Gas A effuses three times as fast as gas B. Gas B has a MM = 120.g/mol. What is the Molar Mass of gas A?
I believe the answer is 13.3g/mol?

If gas A effuses at twice the rate of gas B, what is the ratio of the molar masses (B/A)?

How much faster will gas A (MM=44) effuse than gas B (MM=120.)?

A excess of phosphorus reacts with 4.0L of H2. How many liters of PH3 are produced at the same temperature and pressure as that of hydrogen? P4(s) + 6H2(g) --> 4PH3(g)

2007-11-05 16:54:51 · 1 answers · asked by Anonymous in Chemistry

a(n)= 1 * 4* 9 ....(5n-1) / ((5n)^n) and if it converges, find its limit

2007-11-05 16:53:07 · 1 answers · asked by pnetecos 1 in Mathematics

2007-11-05 16:51:07 · 2 answers · asked by Anonymous in Biology

Hello. I have been trying to solve this problem for so long but it's just too hard. I don't understand it.

Does anyone know how to find the 1st derivative and 2nd derivative of √2x*sinx (the square root of 2x times sinx. using the 1st and 2nd derivative tests.

I know that I have to use the product rule with the chain rule but it is not working and my teacher said my answer is wrong.

Any answers are appreciated, I just want to understand how to do it.

Thank you!

2007-11-05 16:46:49 · 2 answers · asked by nattym04 2 in Chemistry

Hello. I have been trying to solve this problem for so long but it's just too hard. I don't understand it.

Does anyone know how to find the 1st derivative and 2nd derivative of √2x*sinx (the square root of 2x times sinx. using the 1st and 2nd derivative tests.

I know that I have to use the product rule with the chain rule but it is not working and my teacher said my answer is wrong.

Any answers are appreciated, I just want to understand how to do it.

Thank you!

2007-11-05 16:44:08 · 3 answers · asked by nattym04 2 in Mathematics

2007-11-05 16:40:45 · 4 answers · asked by jenn 1 in Medicine

How would you prepare 60 mL of a 0.200M HNO3 from a stock solution of 4.00M HNO3?

2007-11-05 16:34:27 · 3 answers · asked by delixir_21 1 in Chemistry

It is higher up on the activity series so would it for ZnO + H2?

2007-11-05 16:27:10 · 6 answers · asked by hishganish 2 in Chemistry

a satelite in a low orbit around the earth can lose energy due to a very thin atmosphere. As it loses energy it falls down to a lower orbit. How does its speed change

2007-11-05 16:24:40 · 4 answers · asked by karri 1 in Physics

2007-11-05 16:20:32 · 3 answers · asked by Anonymous in Biology

2007-11-05 16:19:37 · 1 answers · asked by Anonymous in Biology

2007-11-05 16:17:07 · 21 answers · asked by Tiko 3 in Biology

MO(s) + CO2(g) MCO3(s)

A 2.80 g sample containing only MgO and CuO is placed in a 3.16 L container. The container is filled with CO2 to a pressure of 740. torr at 20.°C. After the reaction has gone to completion, the pressure inside the flask is 390. torr at 20.°C. What is the mass percent of MgO in the mixture? Assume that only the MgO reacts with CO2.

2007-11-05 16:15:05 · 1 answers · asked by mark 2 in Chemistry

NEGATIVE AND POSITIVE NUMBER

2007-11-05 16:13:57 · 5 answers · asked by Anonymous in Mathematics

What did you think about it being real,though ofcourse no God?I'm an Atheist too, I'm just curious to see how many think it is easier to believe in the paranormal stuff verses God.

2007-11-05 16:07:22 · 17 answers · asked by Life goes on... 6 in Paranormal Phenomena

Listed as 011.0 in the ICD-9-CM 2007 index.

What is an assmann's focus?

2007-11-05 16:06:40 · 5 answers · asked by Doesntstayinvegas.com 3 in Medicine

2007-11-05 16:03:17 · 1 answers · asked by ronginswapno 1 in Mathematics

what is astronomy?

2007-11-05 16:00:42 · 4 answers · asked by Anonymous in Astronomy & Space

I am a big fan of the traditional Finnish Sauna - and I would love to have one...but for the time being I can't afford it.....
However, I see everyone and his brother selling infrared saunas.....hunh? I thought IF was a baaad thing?

Am I tottally wrong about this?
If you know, woould you please let me know?

Thanks a bunch
Be well - Peace

2007-11-05 15:57:04 · 3 answers · asked by freshbliss 6 in Other - Science

if i were to construct a big cage made of metal pipes, and put it on my roof and ground it with heavy gauge wire, could i sit underneath it safely? would all the current go to ground?
the cage would be like a lot of pipes in a row, all connected together and grounded. there would be no walls, it would just be a metal pipe roof, if you could imagine. maybe like 20-30 feet high off of my roof.
don't just say no, only answer if you actually know the answer. and if it's not safe, how could i make it safe?
this is just an idea, i probably would never actually do it.

2007-11-05 15:55:48 · 1 answers · asked by Alex 3 in Engineering

2007-11-05 15:44:47 · 3 answers · asked by Anonymous in Biology

They sell CO2 systems that add CO2 to the water for aquariums. Would using this water on my household plants have a positive impact on their growth?

2007-11-05 15:44:31 · 3 answers · asked by ejonsie23 1 in Botany

2007-11-05 15:42:10 · 2 answers · asked by Cool Guy 1 in Botany

Both emits similar light except for the difference in shape

2007-11-05 15:37:25 · 4 answers · asked by kandan 1 in Physics

How would you expect sodium metal to react with sulfurous acid?

2007-11-05 15:36:33 · 1 answers · asked by Anonymous in Chemistry

A Red Star and a Blue Star have the same size and are the same distance from the earth. Which Looks brighter in the night sky? why?

2007-11-05 15:33:44 · 8 answers · asked by Anonymous in Astronomy & Space

2007-11-05 15:33:42 · 3 answers · asked by Greg P 1 in Biology