English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Science & Mathematics - 7 July 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

Normally this is found in Joules. There is a reason why this basis of energy is incorrect. (?) It is found in the physics trilogy: E = mc2, m = E/c2, and c2 = E/m. The last of the three is that of a field of gravity or of physical time. The energy value here is the heat energy found within a mass. Were this concept to be consistent with all three equations, the first two would have to have "Q" (heat energy) as being the basis of those thoughts also. But "Q" is not the most basic form of energy in relation to c2 = E/m; it is that of "hf". This value describes energy within a moving mass as well as that of electromagnetic energy because mass is composed of electromagnetic energy. So, all three equations should properly have "hf" substituted in place of "E" due to it is actually this value all three agree upon.

2007-07-07 06:46:26 · 5 answers · asked by d_of_haven 2 in Physics

2007-07-07 06:43:51 · 14 answers · asked by Bobbi 2 in Chemistry

What do you think about the 12-21-2012 predicition and the Mayan calender?

2007-07-07 06:43:40 · 11 answers · asked by tljessup 3 in Astronomy & Space

cosAcosB+sinAsinBsinC=1

Please find angles A, B and C in ABC triangle.

2007-07-07 06:39:18 · 3 answers · asked by Amir 1 in Mathematics

2007-07-07 06:39:00 · 2 answers · asked by kenane w 1 in Engineering

I have a ring that i am selling in a personal sale and the gentleman that is interested in purchasing it said that before he purchased it he had to test it. put it in a liquid and if its not above 10k it would eat away.
have you heard of this? is it for real? will it harm the diamond in the ring??

2007-07-07 06:35:15 · 9 answers · asked by blmbean 2 in Chemistry

I was just wondering if the clean air that we breathe every day has a liquid form (I'm not talking about H2O molecules in air, I mean air itself). Obviously it does, but my question is at what temperature does the air condense into a liquid? And what would it look like? It must be lower than -89 Degrees Celsius (-129 Farenheit) cause that's the coldest temperature ever recorded...

2007-07-07 06:35:04 · 4 answers · asked by Ron 2 in Chemistry

What was the name of Paul Allen's space craft to win the X-Prize

2007-07-07 06:33:52 · 2 answers · asked by Tony H 1 in Astronomy & Space

Calculate the mole fraction of the solution made by mixing 1.998 g of p-xylene (C8H10) and 130 g of cyclohexane (C6H12).

Mole fraction of p-xylene?
Mole fraction of cyclohexane?

2007-07-07 06:32:56 · 2 answers · asked by Anonymous in Chemistry

Trivia question : The fly is inside the moving car and is not on any surface but is on its wings (appears to be hovering). Does it mean as the car move forwards at 70 miles/hour, the fly is also moving at the same speed? If yes or no, why?

2007-07-07 06:26:10 · 10 answers · asked by edwin.correa 1 in Astronomy & Space

I would like to know how to do it manually. Because I don't get the correct answer

2007-07-07 06:26:09 · 9 answers · asked by sunshine 1 in Mathematics

2007-07-07 06:25:11 · 4 answers · asked by Brian S 2 in Mathematics

There are black pens... there are blue pens... but why not brown? I'm really pondering this question.... please help.

2007-07-07 06:23:18 · 5 answers · asked by Anonymous in Other - Science

if i have 100, 5 inch squares of fabric and make them into a quilt...how big will the finished quilt be? thanks

2007-07-07 06:19:54 · 5 answers · asked by SNAP! 4 in Mathematics

big enough to push a piston? Think about this carefully, because you might be surprised to know its the main catalyst keeping us from getting exceptional gas mileage......

2007-07-07 06:17:30 · 2 answers · asked by gaia_fanatic 3 in Engineering

You have 2.8 gals of 80% solution and you need some 60% solution. How much 30% solution do you need to mix with the 2.8 gals of 80% to achieve this result?

2007-07-07 06:13:41 · 5 answers · asked by wastedmemoriez 1 in Mathematics

2y-6=2(x+2)
1.) I have to find the slope
2.) A line parallel to the given equation 2y-6=2(x+2) passes through point (2,1). Find the equation of the parallel line.
3.) A line perpendicular to the given equation 2y-6=2(x+2) passes through point (2,1). Find the equation of the perpendicular line.

Someone PLEASE help I am HORRIBLE at math!

2007-07-07 06:11:35 · 8 answers · asked by C.O.O.L. 2 in Mathematics

Factor: 2x^2-5x-3

Will the following function have a maximum or a minimum? Explain.

f(x)=-4x^2+3x+11

Factor:
50x^2-32

2007-07-07 06:11:30 · 5 answers · asked by wastedmemoriez 1 in Mathematics

what does the "per" mean when it is in an equation u write. for example: Sodium peroxide or Perbromic Acid. Also the equations for each would help too!

2007-07-07 06:11:23 · 3 answers · asked by PETER Boy 2 in Chemistry

and what is it if its an obtuse angle

2007-07-07 06:04:51 · 6 answers · asked by blahhhhhh 2 in Mathematics

2007-07-07 06:02:50 · 9 answers · asked by rauf_arabiyani 1 in Physics

2007-07-07 06:01:58 · 4 answers · asked by wastedmemoriez 1 in Mathematics

Can someone tell me how to turn a Fischer projection for aldohexoses, aldopentoses, and ketopentoses into a Haworth projection? I know it goes through a hemiacetal sythesis reaction, but I'm not sure of the steps. Thank you!

2007-07-07 06:01:08 · 2 answers · asked by patti.rollins@sbcglobal.net 1 in Chemistry

If you can seed an acre in 2.8 hrs, and I can seed an acre in 4.5 hrs, how long will it take if we work together?

2007-07-07 05:56:33 · 5 answers · asked by wastedmemoriez 1 in Mathematics

2y-6=2(x+2)

2007-07-07 05:55:51 · 6 answers · asked by C.O.O.L. 2 in Mathematics

According to Einstein's theory, clocks slow down while moving at speed, from the observer's pov. So, let's say a person travels at
80% of speed of light and completes a space travel. According to the traveler's watch, it would be 2 years. But it might be 20 years from our prospective. So we will age 20 years, but the traveler would age 2 years. Does that mean physically too? Like, people originally younger than the traveler
would be older than him?

2007-07-07 05:54:59 · 5 answers · asked by Legend 3 in Physics

2(x-1)=x(2x+2)

How do i do this problem?

2007-07-07 05:54:42 · 5 answers · asked by C.O.O.L. 2 in Mathematics

fedest.com, questions and answers