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Science & Mathematics - 4 November 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

were they all in lunar sychronos orbit? what is the day/night cycle of the moon. (if earth is 24 hrs, whats the moons?)

2007-11-04 16:33:17 · 4 answers · asked by martin l 1 in Astronomy & Space

I know that tan 75= tan (45+30)=tan (A+B)
so, (tan 45+tan 30) / (1-tan 45 tan 30) =
(1+1/radical 3) / (1-1 times 1/radical 3) then from there my math gets all messed up. Can anyone show me the correct way to finish this and end up with the answer: 2+radical 3? Thank you!!!!!!!!!!!!!

2007-11-04 16:32:21 · 4 answers · asked by Chicosgurrl 1 in Mathematics

PowerPoint is about Genetic Breeding of an animal but I just can not decide on what animal to do it on.

2007-11-04 16:29:31 · 6 answers · asked by Karla F 2 in Biology

Right now I am pursuing a degree in Archaeology but I am also interested in Medicine, I've always loved those doctor shows like ER, House, Greys anatomy etc... Should I just study on my own and satisfy my curiosity or take it further. I find it fascinating but ironically, the whole surgery part and internal part kind of grosses me out, but other than that I like the rest, learning about how the body works and illnesses etc... and such. What should I do?

2007-11-04 16:19:20 · 5 answers · asked by Chaun 3 in Medicine

i need to complete my PLO's, so i need the answer to tis question.. please help :]

2007-11-04 16:10:59 · 5 answers · asked by xxbbii 1 in Biology

find the tangent to the graph y=2x-5 at the point (4,3) the equation is y=___ x+ ______

2007-11-04 16:00:49 · 2 answers · asked by Anonymous in Mathematics

Im not quite sure and have been wondering. I have a test coming up in Bio and would like to know why this happens. Thank you.

2007-11-04 15:58:48 · 5 answers · asked by Anonymous in Biology

2007-11-04 15:56:02 · 5 answers · asked by Anonymous in Biology

Concerning Biology

2007-11-04 15:54:36 · 2 answers · asked by Toowee 1 in Biology

2007-11-04 15:54:21 · 6 answers · asked by jagabattuni 1 in Chemistry

2007-11-04 15:52:32 · 3 answers · asked by balaji r 1 in Medicine

A) very low-density lipoproteins (VLDLs).
B) low-density lipoproteins (LDLs).
C) intermediate-density lipoproteins (IDLs).
D) high-density lipoproteins (HDLs).
E) very high-density lipoproteins (VHDLs).

2007-11-04 15:51:32 · 2 answers · asked by Anonymous in Medicine

Our doctor recommends Pencillin for my kid

2007-11-04 15:50:09 · 3 answers · asked by balaji r 1 in Medicine

A) fundus.
B) cardia.
C) body.
D) antrum.
E) pylorus.

2007-11-04 15:49:44 · 5 answers · asked by Anonymous in Medicine

During evolution different species lineages came into existence due to the presence of zygotic barriers. These zygotic barriers can be classed into two categories: prezygotic and postzygotic barriers. Prezygotic barriers are physical isolation, behavioural isolation, temporal isolation, and at the point of mating there is mechanical and gametic isolation. Postzygotic barriers are present after fertilisation and include reduced hybrid viability, reduced hybrid fertility and hybrid breakdown (Campbell & Reece, 2002). Generally hybrids are described as infertile, with the text book example being the mule which is a cross of a horse and a donkey where the two species have a chromosome number difference. This rule of infertile offspring between species as previously discussed does no hold true for all cases. Fitzpatrick & Shaffer (2007) compared the hybrid larvae in native California Tiger Salamanders (Ambystoma californiense) which are protected under the U.S. Endangered Species Act and in

2007-11-04 15:43:53 · 2 answers · asked by vivien h 3 in Zoology

I think it is a constant, why should I think it is not a constant? UM, I forget.

2007-11-04 15:41:03 · 2 answers · asked by Anonymous in Physics

2007-11-04 15:40:27 · 2 answers · asked by Anonymous in Biology

2007-11-04 15:38:39 · 24 answers · asked by Anonymous in Astronomy & Space

What is your definition of wellness and illness. I don't want textbook definitions for the two, just what you think that they are.

2007-11-04 15:36:45 · 5 answers · asked by Anonymous in Medicine

why greenland not cold as antartica even there also hav permanent ice cap a year?

2007-11-04 15:32:27 · 3 answers · asked by _Me_ 1 in Weather

2007-11-04 15:29:26 · 6 answers · asked by Anonymous in Mathematics

When was Venus first discovered as a planet?
And who by?

i know that it has been seen since pre-historic times due to it's visiblity, but does anyone know when it was actually found to be a planet or first recorded as one?

cheers!

2007-11-04 15:26:26 · 4 answers · asked by Anonymous in Astronomy & Space

calculate the mass of excess reagent remaining at the end of the reaction in which 90.0g of SO2 are mixed with 100.0g of O2.
SO2+O2--> SO3

can someone help me with this, i am kind of stuck, also can you show me how you got your answer, so i can see where i went wrong.

2007-11-04 15:19:18 · 2 answers · asked by aminer_lover90 1 in Chemistry

2007-11-04 15:17:47 · 3 answers · asked by Anonymous in Biology

2007-11-04 15:16:52 · 3 answers · asked by Anonymous in Mathematics

people are telling me that they are dolphins but i dont believe them...so what are they?

2007-11-04 15:16:33 · 28 answers · asked by Anonymous in Zoology

Solve the sytem of linear equations?

3x-2y+z=4
x+3y-4z=-3
2x-3y+5z=7


Im not sure how to do this

anyhelp?

2007-11-04 15:15:45 · 4 answers · asked by Smit 1 in Mathematics

Use data from Table 7.2 to calculate the volume of butane, C4H10(g), measured at 20.1°C and 753 mmHg, that must be burned to liberate 4.95 104 kJ of heat.

delta Hf of C4H10 = -125.6 kJ/mol

2007-11-04 15:14:48 · 2 answers · asked by toocool 1 in Chemistry

2007-11-04 15:12:16 · 6 answers · asked by Anonymous in Mathematics

Find area of region enclosed by the curves.
Two curves are x-y^(2/3)=0 and x+y^4=2.

I know that in this case we should set y^(2/3) = 2-y^4. The problem is, how do I solve for y? Two solutions are +1, -1 but how do I continue from here w/o using a calculator.

2007-11-04 15:10:11 · 1 answers · asked by whatsntomake 1 in Mathematics

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