Science & Mathematics - 19 November 2006

Is there any websites? I live in Texas, I want to know what constellations are showwing and when theres gonna be meteor showers.

2006-11-19 16:55:12 · 4 answers · asked by Anonymous in Astronomy & Space

The option for above Question is
1)2/5
2)3/5
3)4/5
4)1

2006-11-19 16:52:09 · 2 answers · asked by Anonymous in Chemistry

this process joins 2 half sets of chromosomes from both parents, what is it called?

2006-11-19 16:50:34 · 9 answers · asked by Anonymous in Biology

I have some big petrified wood logs, but I'd like to cut some to smaller sizes and polish them. Any tips?

2006-11-19 16:50:01 · 4 answers · asked by Ruggrock 2 in Earth Sciences & Geology

Why is the center of the Earth still molten after millions of years? What forces keep it hot?

2006-11-19 16:44:19 · 8 answers · asked by Anonymous in Earth Sciences & Geology

Two cars of masses m1 and m2 collide at an intersection. Before the collision, car 1 was traveling eastward at a speed of v1 , and car 2 was traveling northward at a speed of v2. After the collision, the two cars stick together and travel off in the direction shown.

1,First, find the magnitude of v(vector), that is, the speed v of the two-car unit after the collision
Express v in terms of m1,m2 , and the cars' initial speeds v1 and v2.

2,Find the tangent of the angle (theta).
Express your answer in terms of the momenta of the two cars,p1 and p2


for that problem i put p1/p2 and its wrong they told me look at the figure given if p2=0 what should tan(theta) be? and im so confused now any boddy can help me pliz

2006-11-19 16:42:53 · 2 answers · asked by Anonymous in Physics

I don't know what happened, I was chatting with a friend online and a huge cold wave hit my room. D: My living room is 60 degrees, I have tested this 5 times with thermometers, and the same results appeared. What the heck happened?

2006-11-19 16:42:47 · 7 answers · asked by Kazuki 1 in Paranormal Phenomena

It says that as something approaches the speed of light.. time will slow down for it relative to the outside world.. right?

And that if something were to acheive the speed of light.. time will stop for it.. eh?

well.. what bout light? light travels at the speed of light.. if time should stop for light.. why does it have a finite speed? why does it take 8 mins for it to get here from the sun?

If time stops for light then shouldnt be everywhere simumtaneously?

2006-11-19 16:37:00 · 2 answers · asked by Dhruv 1 in Physics

In human beings male is naturally attracted towards females. Also some people have liking for a certain set of people (having common likings/dislikings) and disliking for other set of people. I want to know whether similar phenomenon also exists among trees/plants etc.

2006-11-19 16:35:48 · 6 answers · asked by NAVEEN S 1 in Botany

2006-11-19 16:35:45 · 2 answers · asked by edd 1 in Astronomy & Space

CAn sum1 tel me what the rules aare for ading mixed numberes eegg; 7 2/5 + 6 2/3 =
subtractimng mixed numbers
eg: 6 2/3 - 1 1/6
multipying mixed numbers
eg 1 2/3 x 3/4
dividing
eg 1 1/2 divided by 1/3
thanx

2006-11-19 16:35:23 · 9 answers · asked by Anonymous in Mathematics

when it comes to simplifying expressions, i don't have to much of a problem, but this one is making me waste paper, some help is apreicated...

4√x+3√xy+7√xy-√x

2006-11-19 16:32:38 · 8 answers · asked by Anonymous in Mathematics

You have a boat with a motor that propels it at vboat = 4.5 m/s relative to the water. You point it directly across the river and find that when you reach the other side, you have traveled a total distance of 27 m (indicated by the dotted line in the diagram) and wound up 11 m downstream. What is the speed of the current?


.

2006-11-19 16:30:00 · 2 answers · asked by xiuhcoatl 1 in Physics

in the 1940's, the human cannonball stut was performed regularly by Emmanuel Zacchini for the Ringling Brothers and Barnum & Bailey Circus. The tip of the Cannon rose 15 feet off the ground and the total horizontel distance traveled was 175 feet. When the cannon is aimed at an angle of 45 degrees, an equation of the parsbolic flight has the form y=ax(squared)+x+c

2006-11-19 16:27:53 · 4 answers · asked by lindsay g 1 in Mathematics

Problem 1: Write the expression log a(y+5)+2log a (x+1) as one logarithm. & Problem 2: Solve the equation In(x+5)-In(3)=In(x-3). & Problem 3: Find the exact solution to the equation 3^x+5=9^x.

2006-11-19 16:27:53 · 5 answers · asked by Anonymous in Mathematics

2006-11-19 16:25:22 · 9 answers · asked by praveen k 1 in Biology

Resturants, hotels, stores, etc. have a small space between two sets of exit doors to keep the cold air from escaping in the summer and heat from escaping in the winter. Some restaurants have temporary vestibules in the winter. What is this space called? What are the temporary structures called that create such a space (commonly seen in New York City restaurants)?

2006-11-19 16:25:09 · 4 answers · asked by KnowBrainers.com 1 in Astronomy & Space

Please help, My notes on this seem to be wrong (they had a lot of steps and I think I missed some)

2x+3y=7
5x-y=9

Does the formula work for all other types of these?

2006-11-19 16:24:50 · 6 answers · asked by Ulver 2 in Mathematics

2006-11-19 16:23:10 · 3 answers · asked by moreninha_usa 1 in Mathematics

2006-11-19 16:22:37 · 6 answers · asked by tonysnhere 1 in Mathematics

2006-11-19 16:22:31 · 1 answers · asked by Anonymous in Physics

2006-11-19 16:22:28 · 4 answers · asked by Anonymous in Chemistry

2006-11-19 16:21:33 · 3 answers · asked by Anonymous in Chemistry

2006-11-19 16:17:25 · 6 answers · asked by Anonymous in Astronomy & Space

2006-11-19 16:13:20 · 4 answers · asked by Johnny P 1 in Weather

A woman and her dog are out for a morning run to the river, which is 4.0 km away. The woman runs at 2.5 m/s in a straight line. The dog is unleashed and runs back and forth at 4.5 m/s between the owner and the river, until the woman reaches the river. What is the total distance run by the dog?

2006-11-19 16:11:37 · 2 answers · asked by billf39 2 in Physics

2006-11-19 16:11:00 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Fossils Occurence and the Age of Rocks
Geologic time scale
A species of the trilobite
Trilobite fossils are widespread throughoutNorth America

2006-11-19 16:09:26 · 2 answers · asked by Nicole 5 in Earth Sciences & Geology

I have to solve (2x+1)(x+2)=5x+2 for x. Somebody please help with work?

2006-11-19 16:08:48 · 10 answers · asked by Billy1888 1 in Mathematics

f(x)=x^2/5(x-1)

the product rule equation:
if y=uv, then y'=u'v+uv'

2006-11-19 16:05:52 · 3 answers · asked by Anonymous in Mathematics