Science & Mathematics - 28 October 2006

2006-10-28 13:02:31 · 15 answers · asked by bettygirl 1 in Geography

2006-10-28 13:01:44 · 4 answers · asked by Angel V 2 in Biology

2006-10-28 13:00:28 · 3 answers · asked by abcdefghi 1 in Astronomy & Space

Refractor, reflector, dobsonion etc?? Best size? Best magnification? What gives absolutely the best close ups? If money were no object? The telescope should be readily available to the amateur astronomer.

2006-10-28 12:59:36 · 8 answers · asked by tricksters202002 2 in Astronomy & Space

can someone tell how babilonians find square roots?where can i search that?

2006-10-28 12:56:44 · 4 answers · asked by bonato 1 in Mathematics

I read a story about two people who saw what they thought was another dimension through a square "opening" that appeared in a room in their house. It appeared out of nowhere and these two people could see others through this opening, looking back at them. The square remained open for several hours. There was no sound and the images would fade in and out at times, but were very clear for the majority of the time the opening was there.

Eventually, the square began to shrink and seemed to pull away from the room and once it was gone, it never returned. It was a spontaneous occurrence, and complete happenstance as the two people involved were not doing any type of experiment or investigation. The square just suddenly appeared and then was gone.

I read this account on the Fortean Times website and it got me to wondering if anyone else has ever experienced anything similar.

2006-10-28 12:55:44 · 7 answers · asked by Raca 3 in Physics

2006-10-28 12:54:57 · 4 answers · asked by ? 1 in Zoology

2006-10-28 12:53:18 · 29 answers · asked by Anonymous in Physics

2006-10-28 12:52:35 · 3 answers · asked by Michael J 1 in Mathematics

So why do u believe in it...There are so many holes and ways to disprove it and you call our views old. Yours are out dated and any "monkey" with half a brain can prove it wrong!!!

2006-10-28 12:52:05 · 34 answers · asked by Joe W. 2 in Biology

I trapped a spider in an upside down glass on the floor of my bedroom because it looked scary. It is about the size of a dime or penny with a navy/gray/black body and red-brown legs. Is it a bad spider? Should I worry about others in my house?

2006-10-28 12:48:00 · 14 answers · asked by lauren k 2 in Zoology

2006-10-28 12:47:37 · 11 answers · asked by Jessie K 1 in Weather

A student mixes a saturated solution of sugar in water on a Friday. On Monday morning, the open comtainer has particles of sugar on the bottom. Suggest several reasons to explain why this happened.

2006-10-28 12:47:20 · 2 answers · asked by chelseapabon 1 in Chemistry

is the metric system (worked out in tens) better than the old (12" = 1 foot) measurmet system ?

2006-10-28 12:46:10 · 7 answers · asked by Phil H 4 in Mathematics

I was wondering what the item in the link below is called so I can look it up on google. The site titles it as Raketti but I do not get any relevant results with it.

http://www.grand-illusions.com/toyshop/raketti/

2006-10-28 12:45:24 · 3 answers · asked by seed 2 in Physics

See picture:

http://content.answers.com/main/content/wp/en/thumb/0/04/270px-Sun,_Earth_size_comparison_labeled.jpg

Even though the sun is farther away, it should completely fill our view, shouldn't it?

2006-10-28 12:44:54 · 12 answers · asked by Anonymous in Astronomy & Space

Write a letter on the editor of Newsweek.

In the letter you comment on your doctor’s reluctance to provide you with penicillin and other kinds of antibiotic drugs. You could draw parallels to modern civilizations blind faith in their use and the unwelcome side effects this might have.
so plzzz your comments .

2006-10-28 12:44:35 · 3 answers · asked by nice_ girl 1 in Medicine

A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 5.5m/s. At the same time, it has a horizontal velocity of 3.5m/s.

a. At what speed does the vehicle move along its descent path?
b. At what angle with the verticle is this path?

Please help me.
I don't understand how to figure this problem out.

2006-10-28 12:42:31 · 2 answers · asked by swimmertommy 1 in Physics

2006-10-28 12:42:16 · 6 answers · asked by Anonymous in Mathematics

A street lamp weighs 150 N. It is supported by two wires that form an angle of 120.0 degrees with each other. The tensions in the wires are equal.

If the angle between the wires supporting the street lamp is reduced to 90 degrees, what is the tension in each wire.

Please help I need help.
I don't understand it.

2006-10-28 12:39:48 · 1 answers · asked by swimmertommy 1 in Physics

A fighter jet lands on an aircraft carrier's flight deck. Although the deck is 300 m long, most of the jet's acceleration occurs within a distance of 42 m. If the jet's velocity is reduced uniformly from 153 km/h to 0km/h as it moves through 42 m, what is the jet's acceleration?


I tried to do this problem myself, and I got -278,678.6 km/h², I believe that that answer is too high though.

2006-10-28 12:39:26 · 6 answers · asked by Some Guy 2 in Physics

2006-10-28 12:38:36 · 1 answers · asked by Anonymous in Geography

response to "What's the best arguement *for* the existance of god?"

2006-10-28 12:38:21 · 10 answers · asked by Black Parade Billie 5 in Astronomy & Space

2006-10-28 12:37:57 · 6 answers · asked by eve 1 in Geography

What is the name of the NH2- ion?

2006-10-28 12:37:48 · 6 answers · asked by Allyson 1 in Chemistry

2006-10-28 12:36:50 · 4 answers · asked by Anonymous in Biology

2006-10-28 12:35:47 · 13 answers · asked by james138698 1 in Astronomy & Space

A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 5.5m/s. At the same time, it has a horizontal velocity of 3.5m/s.

Please help me.
I don't understand how to figure this problem out.

2006-10-28 12:33:38 · 3 answers · asked by swimmertommy 1 in Physics

there is a table with scales of 100N hanging from each side of ithe table,what does the scale read?

2006-10-28 12:30:38 · 2 answers · asked by sweetahsa13 1 in Physics

2006-10-28 12:30:21 · 2 answers · asked by Maia B 1 in Zoology