Science & Mathematics - 21 November 2007

thanks for any help.

btw, i'm supposed to turn it in by midnight. any help before then is appreciated

might be easier to write it out then scan it and send it.

2007-11-21 14:15:02 · 5 answers · asked by bob oso 2 in Mathematics

Why is it that on the equator, winds may blow either counter clock wise or clock wise with respect to an area of low pressure?

2007-11-21 14:14:08 · 2 answers · asked by jake1987ca 1 in Weather

full-length bedroom mirror, make up mirror, car rear-view mirror, dental mirror, store security mirror, jeweller's mirror car side-view mirror, mirror in flashlight, shaving mirror, surface of lake. Tell me why

2007-11-21 14:12:22 · 6 answers · asked by ch_xiao_li 2 in Other - Science

is science a proven fact?
if it is not proven then it has to be an art.

2007-11-21 14:11:32 · 3 answers · asked by Alan G 2 in Physics

1) a 615 kg racing car completes one lap in 14.3 s around a circular track with a radius of 50.0m. the car moves at constant speed.
a) what is the acceleration of the car?



2)an athlete whirls in a 7.00 kg hammer tied to the end of 1.3m chain in a horizontal circle. the hammer makes one revolution in 1.0s.
1))what is the centripetal acceleration of the hammer?




3)the carnival ride has a 2.0m radius and rotates once of a rider.
a)find the speed of a rider.
b)find the centripetal accleration of a rider
c)what produces this accleration?
d)when the floor drops down, riders are held up by friction. draw motion and free body up by friction. draw motion and free body diagrams of the situation
e)what coefficient of static friction is needed to keep the riders from slipping?

i need help with these question.....please.........

2007-11-21 14:09:29 · 2 answers · asked by peipei91189 1 in Physics

Really... are humans the only ones who kiss?

2007-11-21 14:08:57 · 18 answers · asked by Anonymous in Zoology

I will be using Rye, Wonder Bread White, Wonder Bread Whole Wheat, Pumpernickel, and maybe another type of bread. I will get four slices from each Loaf/Package to make sure results aren't skewed, I will put them each in a resealable bag, in a controlled enviroment, no direct heat or freezing. It will occur over 15 Days. Each day I will be observing changes in the bread. The bread expirey dates will be approximately the same.

Now my question is how do a measure the rate of mould/yeast growth.

2007-11-21 14:08:17 · 4 answers · asked by Kenster102.5 6 in Biology

For example in germ war fare or even as an insectacide. If you use ants to control termites there is a name for that. What is it called? If you know .... I don't.

2007-11-21 14:07:04 · 2 answers · asked by Big Will 4 in Biology

black holes and nebulas do, I need 1 more........

2007-11-21 14:05:44 · 9 answers · asked by WasifX 1 in Astronomy & Space

Or is the "Planet X" theory just another part of the 2012 craziness?

2007-11-21 14:03:06 · 7 answers · asked by Zezo Zeze Zadfrack 1 in Astronomy & Space

2007-11-21 14:02:48 · 1 answers · asked by Fitri 1 in Engineering

It is generally supposed that cyclones get weakened if they move towards cold waters.

2007-11-21 14:01:55 · 3 answers · asked by Arasan 7 in Weather

According to scientist we are facing a huge ICE AGE by the year 2000



http://www.junkscience.com/mar06/Time_AnotherIceAge_June241974.pdf

2007-11-21 13:56:57 · 8 answers · asked by Anonymous in Weather

2007-11-21 13:55:22 · 6 answers · asked by vivian m 1 in Mathematics

Im getting into space and black holes and all that stuff as a hobbie so am new to all this and have been wondering how come we know so much about it all so quickly? I mean we have been around for squillions of years and assumabley so were the stars and thats how we know that they are really old from ancient poetry and paintings in caves...my question is if we have survived side by side for so long how come we have modern names for the planets ie pluto as he wasnt invented until the1920s

2007-11-21 13:53:48 · 6 answers · asked by Anonymous in Astronomy & Space

Provided that you have an airplane large enough for this capacity, suppose that you have a 1000 lb load of canaries. You take off and all of a sudden all the canaries start flying within their cages. Supposing that the cabin is pressurized, does the airplane now weigh less because the canaries are no longer on their perch? Or does the airplane weigh the same?

After being asked this question, I thought it through with the knowledge that I possess of physics and this is what I came up with.

I took Newton's third law to base my conclusion. Therefore the air that is giving them lift is compressed in small waves and then dissipates over distance. In relation to the surfaces within the aircraft, the pressures are distributed when compressed. Since it is a closed system no mass or energy is lost. It is a bastardized explanation to something that can be taken to many levels of calculation, but is my assumption correct? Or would it be more eluding?

2007-11-21 13:50:59 · 3 answers · asked by Damian 2 in Physics

also add 3y over y^2+5y +4 plus 2y over y^2-1

2007-11-21 13:50:12 · 4 answers · asked by Anonymous in Mathematics

I'm looking for some sites on these things, preferably aimed at older high school kids, as well as new comers into scientific theory. All I could find was definitions of the terms, not the study themselves. So I pulled up a lot of "What is scientific theory" and not a lot of "The scientific theory of this or that is currently...."
Please help!!

2007-11-21 13:45:08 · 4 answers · asked by Girl In Green 2 in Other - Science

2007-11-21 13:44:27 · 8 answers · asked by Adam Weisshaupt 1 in Astronomy & Space

Im taking an astronomy class soon, and I want to know some stuff going into the class.

Are there any good movies/documentaries about the basics of astronomy?

2007-11-21 13:43:34 · 2 answers · asked by No Gods, No Masters 7 in Astronomy & Space

1. Evaluate -|-340|.
2. Evaluate |-14|.
3. Determine the maximum and minimum values of the following set of numbers:-12,24,13,7,-24,5,0
4. Determine the maximum and minimum values of the following set of numbers.2, -8, 1/2, -5, 3, 9/4, -7, -73/9
5. Place the following set of numbers in ascending order: 22,-15,9,-4,11,-1,17
6. Place the following set of numbers in ascending order.-2/3, 1/6,7/8, -5/9, 3/4
7. Place the following set of numbers in ascending order.
-2, 8, 0, 2, -3, -20, 11
8.Which of the following numbers are integers? 3,2/3, -3,101.1,-5/7
9.Find the first and third quartiles, Q1 and Q3, of the following set of numbers:
10, Find the first and third quartiles, Q1 and Q 3 of the following:7, 15, 13, 13, 12, 9, 11, 19,

2007-11-21 13:43:19 · 6 answers · asked by Anonymous in Mathematics

based upon the effect of an increase in temperature?

2007-11-21 13:43:02 · 4 answers · asked by darkraven_222000 1 in Other - Science

Most people believe it to be the end of the world...

2007-11-21 13:42:20 · 15 answers · asked by Rogeyroo 1 in Astronomy & Space

I know how to convert the 3F1B... the decimal is the problem... i mean do i multiply 4 by 16 power 0... or is it the 3 which should be multiplied by 16 power 0?!! :S:S

2007-11-21 13:40:58 · 3 answers · asked by Maged 2 in Mathematics

Just for fun question - whoever gets the right answer first gets the ten points

2007-11-21 13:36:39 · 7 answers · asked by bbmm 4 in Astronomy & Space

1. Perform the indicated operation. 19-17 divided (6)(6) -36
2. Divide -12 / 0
3. Divide 90 / 18
4. Divide -15 / -3
5. Find the reciprocal of 1/3 (9-4)
6. Subtract - 6.9 - (-7.7)
7. Add 3.03 + (-2.05)
8. Add -3/5 +(8/35)
9. Add 1/8 +1/7

2007-11-21 13:34:52 · 5 answers · asked by Anonymous in Mathematics

2007-11-21 13:34:19 · 4 answers · asked by Anonymous in Astronomy & Space

Also simplify m^3 over 7 divided by m^7 over 28

2007-11-21 13:30:20 · 11 answers · asked by Anonymous in Mathematics

Tne Eye of God... in space, a nebula... is it real... press link or type in web address below...

http://www.argentotm.com/wp-content/uploads/2007/05/skyimage_1944_22300834.jpg

2007-11-21 13:30:16 · 5 answers · asked by jproxxmisoxx 2 in Astronomy & Space

An urn has 10 marbles. One is black, nine are white. A marble is removed, one at a time, without replacement. The first 8 marbles removed are all white. What is the probability of picking the black marble? Is it 50% or 10%? Why?

2007-11-21 13:29:26 · 16 answers · asked by Hylobates 1 in Mathematics