Science & Mathematics - 27 September 2007

name three vegetables usually sow in specially prepared seedbed for transplanting

2007-09-27 03:45:30 · 3 answers · asked by rankinebrandon 1 in Botany

2007-09-27 03:45:29 · 7 answers · asked by Anonymous in Astronomy & Space

What are some of the biggest problems of inventing a time machine, besides the obvious technological inability of humans so far.

2007-09-27 03:44:35 · 7 answers · asked by Antares 6 in Physics

2007-09-27 03:44:07 · 2 answers · asked by LuvPnk 1 in Astronomy & Space

can somebody explain me how do i solve this problem -t/5=9

2007-09-27 03:42:36 · 13 answers · asked by Anonymous in Mathematics

On a biological level... So like does it denature etc. and if so how does it do this? by affecting enzymes etc?? Thanks

2007-09-27 03:41:19 · 5 answers · asked by Anonymous in Medicine

2007-09-27 03:35:29 · 3 answers · asked by fly gal 2 in Astronomy & Space

2007-09-27 03:35:09 · 8 answers · asked by LuvPnk 1 in Astronomy & Space

I have no idea...do you?

2007-09-27 03:34:21 · 4 answers · asked by Caramel 2 in Chemistry

NOT ABOUT PYRAMIDS PLEASE

2007-09-27 03:33:55 · 2 answers · asked by fly gal 2 in Astronomy & Space

Hey, I'm doing research on an informative speech about interstellar travel, what are some methods people have thought about that may work?

Someone had told me that warmholes would work, if we can get it stable enough.

Or Phasing.

etc.

2007-09-27 03:33:07 · 4 answers · asked by Righto Gamer 2 in Astronomy & Space

What function y = f(x) describes the parabola y = x² that has been tilted 45°, so that f(0) = 0, and x = f(y). That is, the function y = f(x) is its own inverse?

2007-09-27 03:31:55 · 3 answers · asked by Scythian1950 7 in Mathematics

When we increase the speed frequency will increase in genset.

what will happen when we increase the exitation?

how to improve power facor in generating station.( with out adding capacitor)

2007-09-27 03:31:32 · 2 answers · asked by sivaket2001 1 in Engineering

2007-09-27 03:30:39 · 3 answers · asked by Anonymous in Medicine

or the opposite, a symptom of an uatoimmune disease?

2007-09-27 03:29:34 · 1 answers · asked by Sharonzeke 2 in Medicine

In S_3 find elements a and b such that lal = 2 and lbl=2, but labl=3?

2007-09-27 03:28:11 · 2 answers · asked by ClooneyIsAGenius 2 in Mathematics

2007-09-27 03:27:29 · 3 answers · asked by CALVIN T 1 in Geography

2007-09-27 03:25:50 · 6 answers · asked by tankwillmsg 1 in Mathematics

2007-09-27 03:24:25 · 1 answers · asked by Anonymous in Mathematics

Do odd permutations of S_n form a group? Explain?

I know that they DO NOT because the identity is even. But I dont know how to show that.

2007-09-27 03:22:32 · 4 answers · asked by ClooneyIsAGenius 2 in Mathematics

24. balance the equation Sr(s) + H2O(l) --> Sr(OH)2(aq) + H2(g).

A. Sr(s) +2H2O(l) --> Sr(OH)2(aq) + H2(g)
B. Sr(s) +2H2O(l) --> Sr(OH)2(aq) + 2H2(g)
C. Sr(s) +3H2O(l) --> Sr(OH)2(aq) + 3H2(g)
D. it is already balanced

25. lithium metal reacts with ammonia gas to form hydrogen gas and crystals of lithium amide, LiNH2. write a balanced chemical equation for this reaction, and classify the reaction as one of the five major types.

A. 2Li(s) + 2NH3(g --> 2LiNH2(s) +H2(g); decomposition
B. Li(s) + 2NH3(g) --> LiNH2(s) + 4H(g) ; synthesis
C. 2Li(s) + 2NH3(g) --> 2LiNH2(s) +H2(g) ; single displacment
D. 4Li(s) + 4NH3(g) --> 4LiNH2(s) + H2(g) ; double

2007-09-27 03:20:49 · 2 answers · asked by Anonymous in Chemistry

Simplify.

5×{(300 - 40 ÷ 5) - [3×24 - (8 - 2× 3)]}

2007-09-27 03:20:29 · 5 answers · asked by V.S. 2 in Mathematics

KOH or NH3... those are the two choices, help me!!!

2007-09-27 03:20:11 · 5 answers · asked by Dan S 1 in Chemistry

thanks

2007-09-27 03:18:54 · 4 answers · asked by maysie_dj18 1 in Earth Sciences & Geology

2007-09-27 03:16:47 · 3 answers · asked by cmpunkbohemia 1 in Chemistry

2007-09-27 03:15:58 · 4 answers · asked by ppstream 1 in Physics

2007-09-27 03:15:12 · 2 answers · asked by cmpunkbohemia 1 in Chemistry

f=9/5C+32. What is the fahrenheit temp that corresponds to each of the following Celsius temps: -10,0,15,100

2007-09-27 03:15:06 · 7 answers · asked by renae c 2 in Mathematics

20. the definition of a chemical reation is
A. two chemicals with opposite atoms
B. a chemical with inner electrons
C. any chemical change
D. both a & c

21. fid the equation that is correctly balanced:
A. 2Hl(aq) + 2Pb(NO3)2(aq) --> Pbl2(s) +2HNO3(aq)
B. 2Hl(aq) + Pb(NO3)2(aq) --> Pbl2(s) +2HNO3(aq)
C. Hl(aq) + 3Pb(NO3)2(aq) --> 3Pbl2(s) +2HNO3(aq)
D. 3Hl(aq) + Pb(NO3)2(aq) --> 3Pbl2(s) +2HNO3(aq)

22. find the equation that is correctly balanced:
A. H2SO4(aq) + BaCl2(aq) --> HCl(aq) + 2BaSO4(s)
B. 2H2SO4(aq) + 2BaCl2(aq) --> 4HCl(aq) + BaSO4(s)
C. H2SO4(aq) + 2BaCl2(aq) --> 2HCl(aq) + 2BaSO4(s)
D. H2SO4(aq) + BaCl2(aq) --> 2HCl(aq) + BaSO4(s)

23. write a balanced chemical equation for the reaction described: aluminum metal + hydrochloric acid aluminum chloride solution + hydrogen.
A. Al(s) + 3HCl(aq) --> AlCl3(aq) + 3H2(g)
B. 2Al(s) + HCl(aq) --> 2AlCl3(aq) + H(g)
C. 2Al(s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2(g)
D. 4Al(s) + 12HCl(aq) --> 4AlCl3(aq) + 3H(g)

2007-09-27 03:14:02 · 2 answers · asked by Anonymous in Chemistry

a =
(1 2 3 4 5 6 )
(3 1 4 5 6 2 )
b =
(1 2 3 4 5 6)
(5 2 4 3 1 6)

Calculate ba^2

what is the order of a?

what is a^100?

2007-09-27 03:07:56 · 2 answers · asked by ClooneyIsAGenius 2 in Mathematics