Science & Mathematics - 15 July 2007

2007-07-15 08:15:26 · 3 answers · asked by Anonymous in Chemistry

is the Archaeopteryx a fraud I’ve read two books on the matter both stating different things, so ill ask you lot is the Archaeopteryx a fraud?

2007-07-15 08:14:51 · 8 answers · asked by predatorpanda 2 in Zoology

I am going to have an job interview for math teacher position tomorrow? I have no job experience...what are they going to ask me? how should I answer? and what should I ask them>
thank you in advance

2007-07-15 08:11:59 · 3 answers · asked by Anonymous in Mathematics

how can this even be a question. I do not understand

2007-07-15 08:11:40 · 2 answers · asked by thecookfamily00 1 in Mathematics

If she were to jump off the stool, while falling, the reading on the spring scale would read:
1. greater than 1 N
2. 1 N
3. less than 1 N
Explain your answer:

2007-07-15 08:10:58 · 2 answers · asked by Anonymous in Physics

If you were able to go to the top of a tall building and simultaneously drop an apple and a basketball, they would both hit the gound at about the same instant because
a. the force of gravity on them is equal.
b. they have the same mass.
c. air resistance on both is the same.
d. they have the same amount of kinetic energy.

2007-07-15 08:08:47 · 7 answers · asked by Anonymous in Physics

A coin is flipped repeatedly. One man bets that the sequence TT will come up first, the other bets on HT instead. Is there a difference in odds?

2007-07-15 08:07:21 · 2 answers · asked by Scythian1950 7 in Mathematics

When a car accelerates from a standing start, a person appears to be pressed backward into the seat cushions. Which of the following best explains why this happens?
a. The person gets lighter as the car accelerates.
b. The car is moving forward faster than the person.
c. There is no reaction to the force of the car taking off.
d. Gravity is pulling the person in the direction the car is moving

2007-07-15 08:06:55 · 3 answers · asked by Anonymous in Physics

would like to view space as seen from the Hubble.

2007-07-15 08:06:50 · 4 answers · asked by cleitus r 1 in Astronomy & Space

ok, so we're all familiar with the theoretical temperature of absolute zero.

at −459.67°F there is a complete absence of movement among particles.

taking this concept into the quantum world becomes a very interesting thing to ponder. if there is no kinetic energy at the sub atomic level wouldn't the science of quantum probability fall apart, thereby actually erasing matter?

i don't know, think about it

2007-07-15 08:02:50 · 4 answers · asked by marcin p 1 in Physics

time.Is this true?and what do they taste like?He said he is barbiquing it like chicken.[gross]I don,t think I,ll like it.Has anyone ate it before?and big do they have to be. It is little but I,m afraid of it.It doesn,t bite anyone that holds it.Yet.But I think it will.Where I live they eat Octipuss legs and they look gross too.Why do people eat stuff like this .when they can hurt you before you cook them.I wouldn,t eat aliggator or anything else that could bite me first.ThankYou. PS I almost passed out when my family was holding it at first when I saw it.Now I don,t scream but I don,t like to look at it.My cousin doesn,t make me hold it eghter,thats good.He said I could have ate some last night and I wouldn,t know it?.IS THIS TRUE OR FALSE??

2007-07-15 07:59:53 · 15 answers · asked by reseda1420 4 in Zoology

can sum1 plz help me by telling me how i can find the surface area and the total surface area of a frustum of a cone, if you post a equation for it. can you please tell me where the equation comes from or how i use that equation, like do i have to open the shape up.
plz help!!

2007-07-15 07:58:39 · 5 answers · asked by help!! 2 in Mathematics

2007-07-15 07:57:35 · 6 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-15 07:56:09 · 9 answers · asked by Anonymous in Mathematics

2007-07-15 07:55:12 · 1 answers · asked by coleman57 1 in Mathematics

please if you have ever taken send me some.

2007-07-15 07:51:36 · 8 answers · asked by celestialviews(champion) 2 in Astronomy & Space

i'm not good at math please help me out here:A number cube is thrown 280 times. Predict how many times it will show a 3.


and another one:Two number cubes are rolled. If the total of the cubes is even, then player A receives 2 points. If the cubes total to 5, then player B receives 9 points. Find the expected value for each layer, and determine if the game is fair.

2007-07-15 07:48:19 · 4 answers · asked by Bloo 2 in Mathematics

What protects RNA from attack by cytoplasmic enzymes?


the lack of RNA-digesting enzymes in the cytoplasm
a cap and tail
the excision of introns
the excision of exons
RNA splicing

2007-07-15 07:40:26 · 1 answers · asked by Anonymous in Botany

and when I go back home can I use it at the liberarys computer?THANK YOU.Do I have to pay?

2007-07-15 07:36:49 · 4 answers · asked by reseda1420 4 in Engineering

Solve the equation.
3x2 - 5x - 8 = 0

x = 3/8, x = -1
x = 3/8, x = 1
x = 3/8 , x = 0
x = 8/3, x = -1

2007-07-15 07:35:27 · 3 answers · asked by Anonymous in Mathematics

Solve the equation.
x2 + 3x - 40 = 0

x = -5, x = 8
x = -5, x = - 8
x = 5, x = - 8
x = -40, x = 0

2007-07-15 07:29:33 · 1 answers · asked by Anonymous in Mathematics

We are using a bi-color SMD LED blue/red (link below) and the idea is that the LED will always light blue until a switch is thrown then the blue will cease and the LED will illuminate RED. Will a transistor do this? if so which type?

http://www.us.kingbright.com/product.asp?catalog_name=LED&product_id=APHBM2012PBASURKC
http://www.us.kingbright.com/images/catalog/SPEC/APHBM2012PBASURKC.pdf

2007-07-15 07:25:01 · 5 answers · asked by Anonymous in Engineering

2007-07-15 07:23:07 · 6 answers · asked by Anonymous in Zoology

If parapsychology is a serious field, I assume that there are some well known universities out there and some well known professors, that you can get training from.
I know I have seen little diploma mill ads in the back of magazines, advertising their correspondence courses, but I am talking about real scientific training, and real scientists.
I assume you would need training in psychology, physics, scientific methods, technology and many other areas. And not be biased in doing your investigating, as it seems many are.
It seems that there are not many really scientifically trained individuals out there. It also seems that most already believe that all of the events are paranormal, and they are just looking for evidence to back their beliefs up, and they have already made up their minds.
So are there legitimate programs, and legitimate trained professionals out there?
Or are most just plumbers that do it on the side, and are very gullible?

2007-07-15 07:19:42 · 10 answers · asked by madcat 5 in Parapsychology

Why is it thatt the Earth is between Venuns and Mars but has litte carbon dioxide in its atmosphere?

2007-07-15 07:16:34 · 12 answers · asked by david b 1 in Astronomy & Space

Suppose you would live in a two-dimensional world, a Flatland, like along a sheet of paper, having no experience of a third space dimension, just like we have no experience of a fourth space dimension. Then you would sometimes get completely unexpected visits from the third space dimension, like for example when somebody writes on the paper, tears or cuts it into pieces or puts it to fire. You would never see the danger coming, as your sight works only along the sheet. Still, you might lose a loved one because he or she was some inches away from you when the paper was cut. Physicists say there are more than three space dimensions. If that is true, how come we are not similarly surprisingly torn apart by objects, maybe some equivalent of asteroids or other stuff, that move in the fourth and higher space dimensions, thus unabling us to ever see the danger coming before it's already here? Is there no matter moving in the fourth and higher space dimensions, or what is the explanation?

2007-07-15 07:14:12 · 5 answers · asked by Justin Case 1 in Physics

Anyone know a quick formula for this that is easy to remember? Or a decent website to explain calculating theoretical yield.

2007-07-15 07:08:41 · 11 answers · asked by Jules 1 in Chemistry

You cook a meal in a 30 cm diameter pot.
The total mass of the pot and the food is 8 kg.
You let the food cool to 20 deg C.
Assuming that the lid is well fitting, no air enters the pot during the cooling period.

when you pull up on the lid, is the lid going to open or is the pot going to get stuck to the lid?

2007-07-15 07:08:15 · 6 answers · asked by Anonymous in Engineering

I have noticed the few psychics that I have seen around the town advertising, as spirit readers, etc, live in small, sometimes shack like houses. It seems to me that they would all be very wealthy, I mean just from betting on sporting events. Or able to charge thousands for their services. Or are they just very humble people. Seems like the number of famous psychics, I can count on one hand. And I have seen them perform terribly. But they are rich, while the majority are not. So are most poor? Or just act like it.

2007-07-15 07:08:09 · 31 answers · asked by madcat 5 in Paranormal Phenomena

How about this one?

Q: A girl drops a coin from the roof top to the ground 6 meters below. If the coin is released from rest, how long is it in the air?

t = ?
h = 6 meters

2007-07-15 07:04:03 · 4 answers · asked by mikko 1 in Physics