Science & Mathematics - 28 September 2006

Cardiac arrest occurs when the heart stops and blood circulation is halted, but cellular reactions continue. When this occurs, doctors often inject sodium bicarbonate solution, NaHCO3, which contains the base HCO3, directly into the heart muscle even before restarting the heart.

a) what effect would cardiac arrest have on blood pH? why?

b) how would the injection counteract this effect?

2006-09-28 19:44:05 · 6 answers · asked by Anonymous in Chemistry

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I am searching for the source of getting "CRY1Ac gene construct" for developing transgenic crop varieties

CRY1Ac gene construct is isolated from the bacteria Bt (Bacillus thuringiensis). I would like to find out a person or institution who can supply me with gene construct.

2006-09-28 19:41:49 · 1 answers · asked by sjayaveer 1 in Other - Science

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Is it okay to have just 2 meals in a day once between 3.5 -4.5 am and the next time is about 6 pm or 7 pm ?

And you should don’t have any thing between these two meals even you should don’t have water?
Please tell from medicine look is it okay for health or not?

2006-09-28 19:41:00 · 9 answers · asked by slash 1 in Medicine

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A force of 48.0N is required to start a 5.0kg box moving across a horizontal concrete floor.?

1. What is the coefficient of static friction between the box and the floor?
2. If the 48.0N force continues, the box accelerates at 0.70 m/s2. What is the coefficient of kinetic friction?

2006-09-28 19:34:07 · 4 answers · asked by bulldawg771 1 in Physics

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Three blocks on a frictionless horizontal surface are in contact with each other (Ma-Mb-Mc).?

A Force F is applied to block A (mass Ma)

1.Determine the acceleration of the system (in terms of Ma,Mb, & Mc)
2. Determine the net force on each block
3. Determine the force of contact that each block exerts on its neighbor.
4. If mA=mB=mC=12.0kg and F=96.0N, give numerical answers.
5. Do the answers make sense intuitively?

2006-09-28 19:30:32 · 1 answers · asked by bulldawg771 1 in Physics

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Trapezoid question - please give correct solution for 10 pts urgent?

In trapezoid ABCD, bases AB = 15 and CD = 30. Points E and F are on AD and BC with EF || AB. If the ratio ofIn trapezoid ABCD, bases AB = 15 and CD = 30. Points E and F are on AD and BC with EF || AB. If the ratio of the area of ABFE to that of EFCD is 13:12, compute EF.

2006-09-28 19:29:55 · 5 answers · asked by need help! 3 in Mathematics

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what does INSAT stands for?

2006-09-28 19:28:13 · 19 answers · asked by Anonymous in Astronomy & Space

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who was the first man to into the space?

2006-09-28 19:27:37 · 22 answers · asked by Anonymous in Astronomy & Space

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who invented vacuum cleaner?

2006-09-28 19:25:59 · 8 answers · asked by Anonymous in Other - Science

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what is an altemter?

2006-09-28 19:25:03 · 5 answers · asked by Anonymous in Other - Science

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what is the relationship between maths and life?

2006-09-28 19:24:56 · 5 answers · asked by Anonymous in Mathematics

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I am at work right now but lightnigng just hit the ground and wow a blue light lit up the sky like day light?

what is it is somthing burning or did somthing just explode go to weather dot com and my are code is 78045

2006-09-28 19:23:55 · 4 answers · asked by Anonymous in Weather

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what is the relationship between maths and geography?

2006-09-28 19:23:28 · 6 answers · asked by Anonymous in Mathematics

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Three amino acids linked by peptide bonds form how many water molecules?

2006-09-28 19:15:06 · 6 answers · asked by foxeebabyy 1 in Chemistry

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What would I need to build a time machine?

2006-09-28 19:14:22 · 21 answers · asked by Anonymous in Engineering

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1$=how many cents?

2006-09-28 19:13:35 · 19 answers · asked by soma 1 in Mathematics

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Word Problem?

A college plans to interview 8 students for graduate assistantships. The college has three assistantships available. How many groups of three can the college select?

2006-09-28 19:07:40 · 9 answers · asked by KISMET 2 in Mathematics

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what do you about the golden number?Do you know what has doneleonardo da vinci about that?

2006-09-28 19:03:54 · 4 answers · asked by slash 1 in Mathematics

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What is a "square second?"?

Those of us who have taken physics know that acceleration is measured in meters (or feet) per "square second." Have you ever contemplated the true meaning of this phenomenon? Does this prove that time has two (or more) dimensions?

2006-09-28 19:03:32 · 8 answers · asked by I Know Nuttin 5 in Other - Science

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how come all inventions eg:tv : the electric light bulb ect ect ect..men on mars are by white men?

2006-09-28 18:55:29 · 9 answers · asked by free-spirit 5 in Other - Science

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How does an adaptation increase a populations chances of survival and reproduction in a particular enviroment?

And give me an example..

~Thanks~

2006-09-28 18:48:06 · 6 answers · asked by Chase 4 in Biology

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After working 4 hours, Frank has made 21 machine parts. At the same rate, how many parts can he make in 7 hour

2006-09-28 18:42:49 · 7 answers · asked by blueeyedbbwinca 1 in Mathematics

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Statistical trivia..10pts!?

1. If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, thenP(A U B) =

2. A six sided die is tossed 3 times. The probability of observing three ones in a row is

2006-09-28 18:39:33 · 7 answers · asked by KISMET 2 in Mathematics

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If man eventually develops mars will time be the same there as here?

2006-09-28 18:37:04 · 6 answers · asked by Anonymous in Other - Science

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trapezoid question?

In trapezoid ABCD, bases AB = 15 and CD = 30. Points E and F are on AD and BC with EF || AB. If the ratio ofIn trapezoid ABCD, bases AB = 15 and CD = 30. Points E and F are on AD and BC with EF || AB. If the ratio of the area of ABFE to that of EFCD is 13:12, compute EF.

2006-09-28 18:30:13 · 2 answers · asked by need help! 3 in Mathematics