Science & Mathematics - 28 November 2006

if the the graph of f'(x) has a point which is tangent to the x-axis, is the point to which it is tangent, a critical point?

2006-11-28 13:42:20 · 2 answers · asked by kiddo89 2 in Mathematics

the temperature of nickel at room temperature

2006-11-28 13:41:58 · 6 answers · asked by ♥ 3 in Chemistry

2006-11-28 13:41:26 · 12 answers · asked by Anonymous in Weather

electrical machineries

2006-11-28 13:40:50 · 2 answers · asked by mayeyh 1 in Engineering

I know that common practice is to place a base course material (rough aggregate) down before placing bituminous asphalt. What would be the outcome (or potential problem) with re-paving over a trench after placing a sand-cement slurry and no base course?

2006-11-28 13:40:35 · 3 answers · asked by squirespeaks 2 in Engineering

has to do with the periodic table. Do you have any ideas? Example- bannana for potasium milk carton for calcium superman thing for krypton

2006-11-28 13:40:22 · 3 answers · asked by theoneandonly4251 2 in Chemistry

this is science not LA.

2006-11-28 13:39:26 · 4 answers · asked by CHRISTOPHER N 1 in Weather

I need help answering these 3 questions based on biology and plasmids.

1. Just mixing your insulin gene and plasmid DNA w/ sticky ends may temporarily result in a new plasmid, but it is being held together by weak hydrogen bonds. What enzyme do you need to add in order to make ur new plasmid a solid circle of DNA?

6. What is the purpose of using plasmids with antibiotic resistance in them?

7. Why were no restriction enzyme tested that would produce bunt ends instead of sticky ends?

2006-11-28 13:39:01 · 3 answers · asked by hellokid 1 in Biology

science

2006-11-28 13:38:52 · 5 answers · asked by batista~rox 1 in Earth Sciences & Geology

2006-11-28 13:38:13 · 3 answers · asked by arief 1 in Mathematics

a rectangle garden has perimeter 66 ft and area 216ft sq. find the dimmensions of the garden. does any one know how to do this???

2006-11-28 13:37:15 · 9 answers · asked by mher713 2 in Mathematics

ok here is the problem, "BOYLE'S LAW",

Flourine gas exerts a pressure of 900 torre. When the pressure is changed to 1.50 atm, its volume is 250. mL. What was the original volume???

2006-11-28 13:37:12 · 2 answers · asked by B-Rad 4 in Chemistry

2006-11-28 13:35:59 · 3 answers · asked by Anonymous in Medicine

How come with all of our powerful telescopes and satellites we can not see even digitally enhanced photographs of what was "left behind"?

2006-11-28 13:33:59 · 9 answers · asked by cabuckley3 1 in Astronomy & Space

So when a star dies would it experience a great mass loss , therefore would have less gravity against what is alluded that a black hole possess? how can that happen?

2006-11-28 13:32:23 · 7 answers · asked by goring 6 in Astronomy & Space

So when a star dies would it experience a great mass loss , therefore would have less gravity against what is alluded that a black hole possess? how can that happen?

2006-11-28 13:31:06 · 4 answers · asked by goring 6 in Physics

Or any other animal designed to only eat plants?

2006-11-28 13:29:05 · 13 answers · asked by Anonymous in Zoology

the greater of 2 numbers is twice the lesser. If the greater # is increased by 18, the result is 4 less than 4 x's the lesser #. is the equation x + 18 = 4 - 4y?

2006-11-28 13:28:49 · 4 answers · asked by cjj1569 1 in Mathematics

2006-11-28 13:28:14 · 8 answers · asked by Willem V 3 in Biology

this is science not LA.

2006-11-28 13:26:38 · 4 answers · asked by CHRISTOPHER N 1 in Weather

Prove this identity and show all steps.

2006-11-28 13:26:12 · 2 answers · asked by c-lo 2 in Mathematics

2006-11-28 13:25:44 · 4 answers · asked by Min 1 in Mathematics

2006-11-28 13:25:04 · 3 answers · asked by Luke S 1 in Astronomy & Space

Solve log2 8 + log232

2006-11-28 13:23:16 · 4 answers · asked by arief 1 in Mathematics

If a ball flying forward in space at a constant speed due to momentary application of force collides with a stationary ball, is the kinetic energy of the moving ball's movement divided equally between the two balls? That's all I wanna know.

2006-11-28 13:22:56 · 6 answers · asked by zeromeyzl 2 in Physics

According to Mendel's first law, allels A and a of a particular gene segregate fromo each other and appear in equal number among the gamates. But Mendel did not know that his plants were diploid. Let us assume that Mendel's plants were teraploid(4N), that evrey gamete contains two alleles, and that the distribution of alleles to gametes is random. Suppose we have a cross of AAAA*aaaa, where A is dominant, regardless of the number of a alleles present in an individual.

The question are:

a)what will b ethe genotype of the F1 peas?

b) If the F1 peas are selfed, what will be the phenotypic ratio in the F2?(Hint: label the four allels to produce the gametes, then predict the frequency of each type of gametes)

please help and explain..thank you..=)

2006-11-28 13:22:31 · 2 answers · asked by ichigokun 1 in Biology

Assume you have a building that is 150 meters high. If the density of air remains constant, what is the difference in atmospheric pressure between the ground floor and the ceiling of the building?

I'm not too sure how to go about doing this as my notes are limited and searching for an equation online has led me nowhere.
I was thinking Pair x g x h, but at the ground floor it would be 0 for the height.

Thanks!

2006-11-28 13:22:20 · 2 answers · asked by alonso_fan85 1 in Physics

I put "a" where the trigonometry symbol should go... please help. Thanks!

2006-11-28 13:21:30 · 6 answers · asked by Min 1 in Mathematics

Has anyone here done an experiment where you add MgO to HCl in a calorimeter or coffee cup calorimeter? If you have, did you have to record the temperature every 30 seconds or minute? If you did, do you know how much the temperature should go down every minute? Because I did it and it only went down like 0.1 seconds every minute. Is that too little?

What did you get for heat of reaction?

2006-11-28 13:21:08 · 2 answers · asked by chris m 2 in Chemistry

2006-11-28 13:20:51 · 2 answers · asked by derek c 1 in Biology