Science & Mathematics - 26 August 2007

Is ozone beneficial to man? Explain please....

2007-08-26 23:55:37 · 11 answers · asked by Anonymous in Weather

2007-08-26 23:53:41 · 4 answers · asked by Bravo D 1 in Weather

2007-08-26 23:53:23 · 11 answers · asked by Anonymous in Astronomy & Space

2007-08-26 23:50:58 · 3 answers · asked by Anthony 2 in Astronomy & Space

2007-08-26 23:47:06 · 6 answers · asked by Anonymous in Mathematics

If possible please show necessary working, thankyou much so!

2007-08-26 23:36:40 · 9 answers · asked by ♥Xenia♥ 5 in Mathematics

That is, blood that is outside the body, like ones that are put in a normal test tube without any anticoagulants added to it

Thanks

2007-08-26 23:33:02 · 6 answers · asked by Anonymous in Medicine

it is about math

2007-08-26 23:27:09 · 15 answers · asked by urim m 1 in Mathematics

Is there any regulations in place to tell what can a physician keep in his office for use in his practice , do these regulations specifies what each specialty can keep ( ENT , ophthalmologist etc ..) ?

2007-08-26 23:26:58 · 2 answers · asked by Anonymous in Medicine

2007-08-26 23:16:00 · 13 answers · asked by Emma 3 in Astronomy & Space

any clue what time its gonna be? i tried checking out some websites but i get no head or tail of all the longtitude or whatever that its written there.

2007-08-26 23:12:01 · 8 answers · asked by maypaxvobiscum 3 in Astronomy & Space

2007-08-26 23:11:47 · 1 answers · asked by Anonymous in Physics

2007-08-26 23:09:03 · 5 answers · asked by Anonymous in Physics

I want to find a free printable version of the Mollier diagram h-s (enthalpy-entopy) preferably in metric units. I want to note, draw lines etc on it so I want to it to be a good and clear version. Also I would prefer it to be on high resolution so I will be able to print it on A3 or A2. Does anyone know where I can find it? Thanks in advance.

2007-08-26 22:59:43 · 4 answers · asked by BFG9000 2 in Engineering

2007-08-26 22:50:57 · 6 answers · asked by Anonymous in Astronomy & Space

Did God pull out the cosmic bath tub stopper by accident again?

2007-08-26 22:32:22 · 7 answers · asked by Anonymous in Astronomy & Space

Two cyclists started to ride at 8am: one from A to B, the other from B to A. Each of them rode at a constant speed along the same road and when each arrived at the terminal point, immediately turned back. They met for the first time at 11 am and each of them turned exactly once before they met for the second time. Find the time of their second meeting.

Thanks, a best answer will be voted for!!

2007-08-26 22:24:24 · 4 answers · asked by Ginga-Ninja 1 in Mathematics

1. CH3(CH2)3CH3
2. (CH2)3
3. CH3CBr2CC13
4. CHI3

2007-08-26 22:11:29 · 2 answers · asked by lamide e 1 in Chemistry

thanks in advance

2007-08-26 22:10:30 · 4 answers · asked by Anonymous in Biology

2007-08-26 22:03:18 · 1 answers · asked by Anonymous in Engineering

and the upper and lower limits are θ = pi/3, -pi/3. I try to solve as follows..:

1/2∫ (4 + 4cosθ)^2 - (6)^2 dθ

1/2∫ (16 + 32cosθ + 16cos^2θ - 36 dθ <--Expand

1/2∫ -20 + 32cosθ + 16 1/2 (1 + cos2θ) dθ <--Trig identity

1/2∫ -20 + 32cosθ + 8 (1 + cos2θ) dθ <--cancel 16 and 1/2

1/2 [ -20θ + 32sinθ + 8θ + 4sin2θ]

1/2[-12θ + 32sinθ + 4sin2θ], then I'd replace the θ with the upper and lower limits, however, I get the wrong answer. Where is my mistake? Thanks!

2007-08-26 21:53:42 · 4 answers · asked by Jorm 3 in Mathematics

2007-08-26 21:52:07 · 1 answers · asked by Maria V 1 in Other - Science

lim x --> 1 2x^1/2 - x - 1/(x-1)^2

2007-08-26 21:51:27 · 1 answers · asked by t m 3 in Mathematics

There are a lot of animals that are becoming extinct some because of what we humans are doing, but isn’t that part of evolution? One animal becomes dominant and then those that cannot cope with the domination become extinct. Others evolve so that they can cope with the dominating species?

And why do we have to try and save some animals? Maybe nature is getting rid of them for a reason, such as the dinosaurs. What happens when we are interfering and trying to help animals, and plants for that matter, that genetically and evolutionarily are no longer needed?

People say we over fish, that’s because there is a large number of the human species. People protest and try and help fish numbers. What if, for example, lion populations expanded because the conditions were right, such as it is for Homo sapiens now, and that meant there were more of them, resulting in caribou numbers declining. Are we going to call it overcaribouing? No, probably not. Are we going to try and save caribou numbers? Why would we need to as it is just the path of nature. A group of the caribou might evolve to outrun them for example but if we interfere to try and ‘help’ them then we might actually be stuffing up that evolutionary process. Then some people would want to reduce the number of lions and start killing them. That would also not be good for the balance of nature.

2007-08-26 21:41:54 · 6 answers · asked by ASK A.S. 5 in Zoology

There are a lot of animals that are becoming extinct some because of what we humans are doing, but isn’t that part of evolution? One animal becomes dominant and then those that cannot cope with the domination become extinct. Others evolve so that they can cope with the dominating species?

And why do we have to try and save some animals? Maybe nature is getting rid of them for a reason, such as the dinosaurs. What happens when we are interfering and trying to help animals, and plants for that matter, that genetically and evolutionarily are no longer needed?

People say we over fish, that’s because there is a large number of the human species. People protest and try and help fish numbers. What if, for example, lion populations expanded because the conditions were right, such as it is for Homo sapiens now, and that meant there were more of them, resulting in caribou numbers declining. Are we going to call it overcaribouing? No, probably not. Are we going to try and save caribou numbers? Why would we need to as it is just the path of nature. A group of the caribou might evolve to outrun them for example but if we interfere to try and ‘help’ them then we might actually be stuffing up that evolutionary process. Then some people would want to reduce the number of lions and start killing them. That would also not be good for the balance of nature.

2007-08-26 21:40:21 · 4 answers · asked by ASK A.S. 5 in Biology

Solve each of the following right triangles. In each case, C = 90 deg. If the angle info is given in deg and min, give the answers in the same way. If given in decimal deg, do likewise in your answers. When two sides are given, give answers in degrees and minutes.

A = 61 deg 00'; b = 39.2cm

Could someone explain this a little to me? I'm a little confused on where to start. (Of course angle B is 29 deg 00'.)

2007-08-26 21:40:06 · 2 answers · asked by Anonymous in Mathematics

1. Urn I contains three red chips and one white chip. Urn II contains two red chips and two white chips. One chip is drawn from each urn and transferred to the other urn. What is the probability that the chip ultimately drawn from Urn I is red?

2. John takes a 20-question multiple choice exam where each question has five answers. Some of the answers he knows, while others he gets right just by making lucky guesses. Suppose that the conditional probability of his knowing the answer given that he got it right is 0.92. How many of the 20 questions was he prepared of?

3. An insurance company has three clients - one in Manila, one in Davao and one in Cebu - whose estimated chances of living to the year 2010 is, 0.7, 0.9 and 0.3, respectively. What is the probability that by the end of 2009, the company will have had to pay death benefits to exactly one of the three?

Thanks! :)

2007-08-26 21:39:35 · 3 answers · asked by infinitelimits 2 in Mathematics

other number?

2007-08-26 21:39:31 · 4 answers · asked by Lleh 6 in Biology

For example ZnO+NaOH

2007-08-26 21:30:19 · 1 answers · asked by Anonymous in Chemistry

HINT : it is related to Black hole...

2007-08-26 21:27:52 · 2 answers · asked by me only 1 in Physics