Science & Mathematics - 9 October 2007

With a hugre universe theres possiblities of anything....Not even Einsteins mind can compare to the unknown parts of the universe. I mean there could be another life of different properties. There could be magic people who can mgically create sopmthing out of air. All we can figure out is what we see not what we know. Huge universe the large universe cant compare to what we just see. Heck...we dont even know if the universe ends. If it does...then whats beyond that? If it doesnt end then why not have possiblities beyond what we know? Explain your theories to say. It is true then we dont know its so large maybe we will never find the end or the end is so far the universe will cease before its discovered.

2007-10-09 10:22:17 · 9 answers · asked by Anonymous in Astronomy & Space

2007-10-09 10:20:05 · 3 answers · asked by Anonymous in Weather

answer true or false.
1. A group of stars that form a pattern is called a constellation.
2. The amount of light that earth recieves from a star is called the star's absolute magnitude
3. The distances of stars from earth are measured in parallaxes
4. The apparent magnitude of a star is the amount of light it actually gives off.
5. Another name for the north star is polaris
6. The absolute magnitude of rigel is less than that of Sirius
7. The apparent shift in an object when viewed from two different positions is called parallax
8. The pattern of dark lines recorded by a spectograph can be used to identify the elementsthat are in a star's atmosphere.
9. The stars appear to change positions in the sky throughout the year because Earth revolves around the sun
10. The apparent magnitude of stars is greater when they are closer to the earth.
11. constellations that circle polaris and are visible year round are called circumpolar constellations

Thanks and have a good day

2007-10-09 10:19:53 · 4 answers · asked by Anonymous in Earth Sciences & Geology

just as the question says: is a paramecium an animal

2007-10-09 10:17:01 · 4 answers · asked by sarahlahot 2 in Zoology

which is easier to make a model of and what materials should i use

ps best answer recieves 10 points

2007-10-09 10:14:24 · 6 answers · asked by Mr. Point Gurad-rifict 2 in Chemistry

For which of the following values of b will there be 2 distinct real solutions to the equation 2x^2-bx+6 = 0 ?
A) 4 times radical 3
B) -4 times radical 3
C)-2
D)0
E)7

2007-10-09 10:13:19 · 2 answers · asked by Petree33 2 in Mathematics

I am doing a sscience project and need much help.

2007-10-09 10:07:21 · 1 answers · asked by Alyssah S 1 in Earth Sciences & Geology

2007-10-09 10:07:13 · 4 answers · asked by davidtn_108 1 in Biology

doing a science project

2007-10-09 10:06:45 · 5 answers · asked by Damonai P 1 in Earth Sciences & Geology

The following should be true or false

Ionic bonds always produce giant ionic structures
ions in a giant ionic structure are loosely packed together
ionic compounds disolve to form solutions that conduct electricity

2007-10-09 10:06:12 · 1 answers · asked by dwiendle 1 in Chemistry

A- Nothing happens, b/c the cell cycle stops.
B- The cell stores sodium ions that it will need later in the cycle.
C- The cell starts to divide.
D- The cell produces spindle fibers.

2007-10-09 09:57:41 · 2 answers · asked by angelbaby_sg30 1 in Biology

Hi,
I need to make sure I am doing this right..
Question: hybridisation of carbon-3 in 1-butene?
Answer: sp3

Question: hybridisation of carbon-1 in propanal?
Answer: sp2

am I right so far?

2007-10-09 09:57:14 · 1 answers · asked by Anonymous in Chemistry

2007-10-09 09:56:13 · 4 answers · asked by oredramo 5 in Medicine

The figure shows a simple pendulum of length L = 54 cm and mass m = 2.4 kg. It's bob is observed to have a speed of vo = 4.8 m/s when the cord makes an angle θo = 24°.

What is the speed of the bob when it is in its lowest position?

What is the least value that v0 must have if the cord is to swing up to a horizontal position?

2007-10-09 09:55:51 · 1 answers · asked by borthausen 1 in Physics

2007-10-09 09:51:25 · 2 answers · asked by corbin909 4 in Earth Sciences & Geology

2007-10-09 09:50:01 · 10 answers · asked by donf407 2 in Geography

I have this 2kW electric heater at home that's well.....2kW. I found out that I'll never need to use it again, though. My gas furnace looks like a wood burning stove that just heats up a pipe that goes up to the roof. It takes forever to heat the house so I usually run a 2kW electric heater at the same time.

Anyway, recently got the idea to set up a fan to blow air on that pipe and now the room heats up 4 to 5 times faster. I guess I was losing a ton of heat just straight up and out through the roof. I looked at the fan label this morning and it was only 60 watts!!! The blade is like 2 feet in diameter and it's pretty powerful so it got me wondering. It seems like I'm getting something for nothing here.

So why is rotational energy draw so much less power?

2007-10-09 09:49:53 · 2 answers · asked by Anonymous in Physics

What is the balanced chemical reaction for the reaction used to calculate the standard enthalpy of formation of CaCO3(s)?

2007-10-09 09:49:30 · 1 answers · asked by Anonymous in Chemistry

When NaOH(aq) and CaCO3(aq) are mixed what precipitate forms and what color

same question with
NaOH and KCl
NaOH and K2CrO4
CaCO3 And KCl
CaCO3 and AgNO3
CaCO3 And K2CrO4
KCl And K2CrO4
AgNO3 and K2CrO4

I am having trouble making my table of knowns for a qualitative analysis lab, if someone could do at least some of these it would be very helpful.

2007-10-09 09:46:38 · 1 answers · asked by daniel T 3 in Chemistry

please answer

2007-10-09 09:43:24 · 4 answers · asked by Anonymous in Astronomy & Space

math is really confusing right now. o_o
that's just one of the problems. >.< but, help?
please show the steps that you did;
i.e:
1) blah bahkfjg
2) blahdkghdk

thankss :)

2007-10-09 09:39:34 · 22 answers · asked by Anonymous in Mathematics

the distance, s m, fallen by a stone droped from a high point is proprtional to the square of the time, t seconds since it was droped. This show some values of t, t2 and s.

http://www.bebo.com/PhotoAlbumBig.jsp?MemberId=1239223699&PhotoAlbumId=1939956398&PhotoId=5780248732

(a) use the known values to find the equation connecting s and t.

(b) copy the table and use the equation to fill in the missing values of s and t.



---please give your answers in full working out if you can---



thanks

2007-10-09 09:36:55 · 1 answers · asked by Anonymous in Mathematics

Can someone explain standard deviation in a way i can understand? I know it is the spread and that it measures variablity, but what is it useful for?

2007-10-09 09:32:13 · 5 answers · asked by Anonymous in Mathematics

need help in home work

2007-10-09 09:30:34 · 4 answers · asked by Moraima Z 1 in Botany

Most accurate answer gets 10 points. "Because it makes it colder" is not good enough.

2007-10-09 09:30:23 · 7 answers · asked by Scythian1950 7 in Physics

Ya know the green guys with the buggy eyes like on men in black !
Well my cousins husband works for the millitary and he used to work under wright pat airforce base in ohio so i was asking if aliens were real and Jodie ( my cousin ) said that they were underneath wrihgt pat airforce base and i asked my cousins husband if he knew anything about this because he used to work under there and he said " I cannot confirm or denny "
in other words " yes " unless he would just say " NO " so any way I guess Aliens akre real !!!!
What do you ppl's think !!!!

2007-10-09 09:26:39 · 9 answers · asked by Anonymous in Astronomy & Space

I need to know an average amount of how many flowering plant species there are in the world for a paper I am writing.
I cant seem to find it anywhere on google or yahoo. I will keep trying but if you have read it somewhere or have seen this, please let me know. Thankyou!

2007-10-09 09:26:33 · 6 answers · asked by Anonymous in Botany

I have a science test tomorrow, I kinda have to know.

2007-10-09 09:26:12 · 3 answers · asked by frenchmanicure- 3 in Biology

Find the coefficient of rolling friction ?

2007-10-09 09:26:09 · 1 answers · asked by salvatore g 1 in Physics

1) How were Aristrotle and Carolus Linnaeus involed in the classification of living organisms?
2) What are the main parts of a flower and what are their purposes
3) Animal, Plant and Fungus, list one characistic for each ( ex. Archaebacteria- bacteria with no nucleus)



Try to answer as many as u can i forgot my science binder and i cant find it in the book thanx for any help!

2007-10-09 09:23:51 · 4 answers · asked by Brunnette Babe 3 in Botany