Science & Mathematics - 19 October 2006

I am curious if M=EC2 is a valid formula as well. If true this would tell me how much energy is needed to create matter. If we extrapolate even further it would tell us how much "energy" there is in the universe based upon the estimates of matter in the known universe. Taking into account the law of entropy and general theories of residual energy loss we can work backwards towards the creation of the universe in knowing how much "energy" was needed to create said universe. This would be helpful to mankind as a whole in figuring out how long until the universe resets itself. If you've followed me this far just one more theory. If all the matter in the universe is gathered in one mass as the law of thermodynamics states it will be, then energy will be created by the tremendous forces and pressures of such an event. We could be in any number of a cycle of a repeating system. Of course this is all very vague and I have no clinical data to support such wild flights of fancy.

2006-10-19 21:34:16 · 6 answers · asked by Anonymous in Physics

2006-10-19 21:33:39 · 8 answers · asked by mays 1 in Other - Science

I saw a fifth gear programme where they took cooking oil straight from the frying pan into a Mercedes, which ran for 200 miles with no problems, why?

2006-10-19 21:25:50 · 17 answers · asked by Paul B 1 in Chemistry

2006-10-19 21:22:44 · 4 answers · asked by P2000 1 in Botany

2006-10-19 21:15:33 · 9 answers · asked by Bern 1 in Mathematics

since gold is a good conductor of heat we can use it to make a pot right but why no human has a gold pot at home to cook the food.

2006-10-19 21:06:24 · 16 answers · asked by hpz ftw 4 in Other - Science

2006-10-19 20:53:43 · 11 answers · asked by sandra k 3 in Earth Sciences & Geology

2006-10-19 20:52:20 · 6 answers · asked by sandra k 3 in Weather

I heard it was Alpha Centauri, is that correct??

2006-10-19 20:46:55 · 5 answers · asked by Richard A 1 in Other - Science

2006-10-19 20:42:10 · 11 answers · asked by eston 1 in Mathematics

Please note that I need a formula to calculate the summation to nth term (Sn)

x*(y) + 2x*(y^2) + 3x*(y^3) ....... nx*(y^n)

2006-10-19 20:42:09 · 7 answers · asked by Anonymous in Mathematics

2006-10-19 20:41:50 · 7 answers · asked by ajeet_singh_amera 1 in Mathematics

consider the fucntion f(x)=2x^3+6x^2-4.5x -13.5. state the roots of this cubic and confim using the remainder theorem.
Roots : -1.5, -3, 1.5
(This is Done)

Here's the problem :-
then,taking the roots two at a time, find the equations of the tangent lines to the average of two of the three roots. Find where the tangent lines at the average of the two roots intersect the curve again?

I dont know how to get the eq. of tangent!

2006-10-19 20:32:17 · 3 answers · asked by HellBoy 2 in Mathematics

2006-10-19 20:30:58 · 7 answers · asked by curious1 3 in Earth Sciences & Geology

2006-10-19 20:30:49 · 8 answers · asked by punk_rocker_1_2_3 1 in Weather

i've heard it's craters,a reflection of earth..does anyone really know for sure??????

2006-10-19 20:29:21 · 6 answers · asked by curious1 3 in Geography

2006-10-19 20:18:58 · 11 answers · asked by tatercalad 1 in Other - Science

i want some interesting points

2006-10-19 20:18:15 · 5 answers · asked by Ashi 1 in Botany

4 to the power x minus 4 to the power x-1 equal to 24.

X=?

2006-10-19 20:14:22 · 13 answers · asked by D J 2 in Mathematics

can any one tell me the name of the star that guides the sailors?

also suggest some synonymns for the word "light"

Thanks in Advance

2006-10-19 20:09:31 · 20 answers · asked by fiz 2 in Astronomy & Space

2006-10-19 19:58:56 · 15 answers · asked by tequillajenny 2 in Astronomy & Space

Gases have low desities

The densites of a substance in the solid and liquid states are nearly identical

2006-10-19 19:53:25 · 4 answers · asked by Anonymous in Chemistry

I like sunny days too, but does anyone else love the feeling of cloudy days (when it isn't cold)? I know it usually means being down and gloomy, but for me that's never the case?

2006-10-19 19:47:23 · 14 answers · asked by eminem526 2 in Weather

2006-10-19 19:47:07 · 3 answers · asked by prakash 1 in Medicine

For example a poor young fit teenage couple will have "fun" sex and she will end up pregnant easily. Then,she will chose or be presured into having an abortion.Due to say her financial problems. Where as an older couple will want to have a child.But, will be unable to. Despite having attained wealth.So that the child will not be poor or hungry. Or someoen gets a birthday gift they don't think is special. Then,their friend or sibling says; I wish I had gotton that. You're so lucky. Give an example from your life or someone elses. If you believe that this is the way it works. Someone told me; "You want what you can't have." Maybe, but since this is a universal circumstance. What law or laws are behind this phenomenon ? . It's not random enough. Everyone wants something someone else already got easily. Can we rule out Karma ? Yes,I think so. It has nothing to do with your actions. Ever notice how the Lotto Jackpot winners aren't people who play consistently for decades.

2006-10-19 19:44:33 · 2 answers · asked by sandwreckoner 4 in Biology

I had to cross and follow the inheritance pattern of Drosophila flies with white eyes. This is a sex-linked recessive trait and is supposed to show up as a 1:1:1:1 ratio. How do I calculate an exact ratio from the data I generated?

F, whi: 103/424
F, red: 118/424
M, whi: 107/424
M, red: 96/424

I understand that it basically supports the 1-1-1-1 ratio, especially through the use of a Chi-square test, but since these values aren't exactly the expected 106-106-106-106 that they're "supposed" to be, what is the exact ratio for my data? Is it still technically 1-1-1-1? How do I go about calculating it?

Thanks!

2006-10-19 19:34:52 · 3 answers · asked by TheAutumnPhoenix 3 in Mathematics

In general, what is the meaning of the second derivative of a given three dimentional figure? For a sphere, the second derivative is 8piR and the first is 4piR^2. The first derivative tells the surface area, but what does 8piR mean?

2006-10-19 19:31:10 · 11 answers · asked by venomfx 4 in Mathematics

A 2660kg car is being towed in a straight line by a tow truck. The car has its emergency brake and on. The coeifficent of friction is .540 and both the car and truck are traveling at 2.50 m/s^2. What is the tension in the cable between the vehicles.
Assume the cable is weightless.

2006-10-19 19:28:14 · 5 answers · asked by Anonymous in Physics

2006-10-19 19:27:32 · 10 answers · asked by beautypsychic 3 in Physics

if 0,5g Ca(OH)2 was put into 1 liter pure water, calculate how much Ca(OH)2 can dissolve?Ksp Ca(OH)2=3,2x10^-5

2006-10-19 19:21:30 · 1 answers · asked by jenni 1 in Chemistry