Science & Mathematics - 1 February 2007

2007-02-01 12:43:25 · 1 answers · asked by Joseph T 1 in Earth Sciences & Geology

sq root(2x+50) +2*sq root(x+6) = 5

help plz show steps

2007-02-01 12:43:21 · 5 answers · asked by A H 1 in Mathematics

Well I am in my 2nd year of college and still pursuing diligently towards all my pre-reqs for med school... but I heard a nasty rumor that you can't be a doctor if you are color blind...I'm red and green... i see them just not all shades of them.

2007-02-01 12:43:13 · 6 answers · asked by tieubao81 2 in Medicine

2007-02-01 12:42:04 · 5 answers · asked by Nick V 3 in Zoology

i know that the DNA polymerases add nucleotides to those according to the base-pairing rule (Chargaff's rule), but what prevents it from doing it wrong?
simple question, 10 points for the first person with the correct answer! =)

2007-02-01 12:41:38 · 3 answers · asked by Anonymous in Biology

I saw a nature programme a few years ago, and it featured an animal called "Proteus (something)". It was an eel like wormy thing with pink gills and a white albino body. It was also blind and lived in some deep water caves. If anyone knows the second part to its name please share your wisdom, as its doing my head in!

2007-02-01 12:41:18 · 11 answers · asked by scottydg 2 in Zoology

what does it mean when they say "write the equal factors"for exponents?

2007-02-01 12:40:27 · 2 answers · asked by Kartik m 1 in Mathematics

2007-02-01 12:40:14 · 3 answers · asked by Anonymous in Earth Sciences & Geology

what is a constant number like in digit decreased by a constant amount.

2007-02-01 12:39:35 · 4 answers · asked by ~TwInKiE~ 2 in Mathematics

If you remove humans from the world and make them extinct will sound becpme extinct to?

2007-02-01 12:39:16 · 7 answers · asked by rixie987 2 in Earth Sciences & Geology

do you take ln or do you just subtract a one

2007-02-01 12:38:31 · 4 answers · asked by kruk189 1 in Mathematics

Find the arc length from (-3,4) clockwise to (4,3) along the circle
x^(2) + y^(2) = 25. Show that the result is one-fourth the circumference of the circle.

2007-02-01 12:37:29 · 3 answers · asked by Anonymous in Mathematics

I'm gonna be seeing my girl later tonight and I'm not in the mood, but I know she'll want me to "perform". I need to get interested quick, and I've got two Rockstars (2000mg taurine per can, 1000 per serving). Will that help me get into the stud character? (lol... stud character....) And how soon?

2007-02-01 12:36:23 · 7 answers · asked by Rey Gamberro Salvador 2 in Medicine

I'm sure you guys know what I mean - that sudden jolt as if you're falling.

What causes that?

2007-02-01 12:35:08 · 19 answers · asked by LadyRebecca 6 in Biology

2007-02-01 12:33:54 · 8 answers · asked by Anonymous in Mathematics

please explain how to do it:

1. y^2 - a^2 - 6a - 9

2. a^2 - a -ac + c

3. 2nr + 3p^2 + 6pr + pn

2007-02-01 12:33:48 · 4 answers · asked by Mia16 3 in Mathematics

2007-02-01 12:31:45 · 16 answers · asked by urtheonlyoneforme8201995 1 in Mathematics

I understand that evolution plays an important part of microbiology and other macro organisms, but what other theories in the biological science field has come up to counter Darwin?

Please don't confuse this as a religious question

2007-02-01 12:31:17 · 10 answers · asked by ibid 3 in Biology

2007-02-01 12:30:32 · 20 answers · asked by astrorocket 2 in Weather

2007-02-01 12:29:57 · 5 answers · asked by slipknot1206@sbcglobal.net 1 in Astronomy & Space

2. Calculate the volume of a cube that has a side that measures 3m^2n^7 (hint: V=S^3 )

2. If a rectangle has an area of 18 x^9y^2 and a width of 6 x^7y, what is the height? (hint: A=h x w )

Thank you

2007-02-01 12:29:34 · 2 answers · asked by J 6 in Mathematics

I've heard that there is a site where u can do a bit of stargazing from some observatory, but unfortunately I can't find it. Thanks in advance

2007-02-01 12:27:22 · 5 answers · asked by scottydg 2 in Astronomy & Space

I need to know if 58 ia a natural number, whole number, integer, rational number, irrational number or real number.

2007-02-01 12:27:04 · 12 answers · asked by chickiejam 1 in Mathematics

2007-02-01 12:26:47 · 6 answers · asked by Anonymous in Biology

A(g) + B(g) ---> C(g)

The rate law for the above reaction is:

-d[A]/dt = k[A][B]

The rate constant is 2.90×10-4 L mol-1 s-1 at 339°C and 4.24×10-2 L mol-1 s-1 at 533°C.

Use the Arrhenius equation

k = Ae-Ea/RT

to:

Calculate Ea for this reaction.
1.05×102 kJ/mol

Calculate the rate constant k at 413°C for this reaction.

i know there is one formula like ln(k2/k1)=Ea/R(1/T1-1/T2)

can anybody helps please?i have no idea how to do this..

2007-02-01 12:26:27 · 1 answers · asked by ichigokun 1 in Chemistry

"The wheels on a toy car have a diameter of 2 inches and are revolving at 1440 radians per minute. What is the linear velocity of the toy car in feet per second?"

I've figured out that the circumference of the circle is 6.28 inches...and then I have no idea where to go from there. Help, please?

2007-02-01 12:26:02 · 2 answers · asked by Aliza, Queen of the Night 3 in Mathematics

A rectangle has its base on the x axis and its upper two vertices on the parabole y=12-x^2. What is the largest area the rectangle can have and what are its dimensions.
Please describe how you arrive at the answer

2007-02-01 12:25:31 · 3 answers · asked by msX 6 in Mathematics

Just trying to resolve a dispute with my professor.

2007-02-01 12:24:16 · 2 answers · asked by Anonymous in Chemistry

2007-02-01 12:24:12 · 7 answers · asked by joey 1 in Mathematics

This is a opptimization problem
The US. postal service will accept a box for domestic shipment only if the sum of its length and girth does not exceed 108. What dimensions will give a box with a square end the largest possible volume.
Please describe how you arrived at the answer

2007-02-01 12:23:24 · 1 answers · asked by msX 6 in Mathematics