Science & Mathematics - 15 December 2006

2006-12-15 06:42:26 · 9 answers · asked by chan O 1 in Mathematics

There's a principle that states that most prime numbers in a linear sequence will occur in groups, separated by only one number, i.e 5 and 7, 11 and 13, 17 and 19, 29, 31 and 33. Does anyone know the name of that principle?

2006-12-15 06:39:31 · 4 answers · asked by jlb_n_ga 2 in Mathematics

please provide a link if possible

2006-12-15 06:34:43 · 3 answers · asked by Anonymous in Astronomy & Space

When you have 2 mirrors facing each other, their reflection bounced between the 2 of them goes off into eternity. Is there are proper name for that effect?

2006-12-15 06:34:05 · 2 answers · asked by jlb_n_ga 2 in Other - Science

A simple harmonic oscillator of mass 7 kg has a period of 50 seconds. What is its restoring force constant?

2006-12-15 06:28:53 · 2 answers · asked by tanie 1 in Physics

2006-12-15 06:25:43 · 4 answers · asked by Frank 3 in Astronomy & Space

2006-12-15 06:24:32 · 18 answers · asked by Anonymous in Other - Science

2006-12-15 06:22:20 · 6 answers · asked by vanessa m 1 in Astronomy & Space

i need help

2006-12-15 06:19:12 · 10 answers · asked by ? 2 in Mathematics

I dont understand why temperature goes down when u higher up the altitude . Are nt we getting nearer to the SUN .

2006-12-15 06:18:46 · 10 answers · asked by Anonymous in Physics

I know that the old communicators in the TV series are considered part of the inspiration for cell phones. What other scientific developments do you believe "Star Trek" did inspire or will eventually become real.

2006-12-15 06:16:27 · 8 answers · asked by kenrayf 6 in Other - Science

if the world was to end tomorrow what what we do?

2006-12-15 06:16:22 · 2 answers · asked by sparks nevada wild child 2 in Other - Science

2006-12-15 06:15:16 · 1 answers · asked by cory c 1 in Physics

The roof of the Sears Tower is at an elevation of 1451 ft (442.3 m), so, how fast would a person be travelling when he or she hit the concrete below? What would be the force of the impact? Would the impact (presuming at 150 lb male) break the concrete? I suck at physics so anybody willing to indulge me in the physics of this would be my new best friend. Thanks!

2006-12-15 06:15:15 · 3 answers · asked by ryguillian 2 in Physics

2006-12-15 06:13:22 · 9 answers · asked by Anonymous in Astronomy & Space

the answer acoording to my lil bro is bread belive it or not!

2006-12-15 06:12:45 · 9 answers · asked by jumanjisapikey 3 in Engineering

2006-12-15 06:09:19 · 6 answers · asked by poobuttone 1 in Weather

2006-12-15 06:08:44 · 7 answers · asked by poobuttone 1 in Weather

2006-12-15 06:05:56 · 14 answers · asked by jonas e 1 in Biology

related to Theory of Relativity Einstein
Thnks

2006-12-15 06:04:13 · 14 answers · asked by man_in_casual 2 in Astronomy & Space

WHEN ENGINES GO BAD OR ANYOTHER PROBLEM OCCURS, THESE PARACHUTES COULD MAKE THE PLANE SLOW AND SAFE HELICOPTER LIKE VERTICAL DESCEND.. THIS OR ANY VARIATION OF THIS IDEA COULD SAVE MANY LIVES? WHAT DO U SAY?

2006-12-15 06:01:22 · 6 answers · asked by asker 1 in Engineering

2006-12-15 06:01:03 · 2 answers · asked by Lisa 1 in Biology

oh jeez i need some help i honestly cannot solve this equation! help please???
7/5x+3/5= -x

2006-12-15 05:59:44 · 14 answers · asked by Anonymous in Mathematics

2006-12-15 05:58:44 · 1 answers · asked by Anonymous in Engineering

need it asap=)

2006-12-15 05:58:16 · 3 answers · asked by blue.angel222 1 in Mathematics

I have to do a research paper, and the first part is finding out what type of spider she is. If anyone could help me out that would be great. So far my research has told me that she is a garden spider....but my professor is looking for the specific type.

2006-12-15 05:56:03 · 5 answers · asked by Champagne115 2 in Botany

Descriptions of gravity in texts are confusing to me because they describe the attaction between objects as though it was the the property of the objects.

We reject the concept of "action at a distance" (i.e. lifting your coffee cup with your mind) and yet we accept that the moon, 250k miles across a vacuum is able to drag the earth's oceans around. We calculate trajectories of space probes using the "gravity" of planets to accelerate rockets.

Models of gravity are equated with balls rolling round a vortex.

But space is a vacuum. Yes there are particles and "solar wind" but the theory of "aether" has been debunked. Planets and suns don't float in some soup that can be swirled by the passage of an object. Still, they seem to act as though they do.

Isn't gravity acceleration(s)? First, from the Big Bang and including all events since then, a genealogy of events (frictions).
Earth & moon each wiggling separately to a very old dance.

2006-12-15 05:56:01 · 5 answers · asked by Anonymous in Astronomy & Space

How many HCl, Al2O3, AlCl3, H2O? What is the true equation?

2006-12-15 05:52:54 · 6 answers · asked by Anonymous in Chemistry

2006-12-15 05:50:18 · 6 answers · asked by sk8rgivmeinfo 1 in Astronomy & Space

Would these be five different forms of energy?

1. Kinetic Energy
2. Mechnical Energy
3. Potential Energy
4. Thermal Energy
5. Work (Transfer of energy)

2006-12-15 05:49:42 · 2 answers · asked by Anonymous in Astronomy & Space