Science & Mathematics - 4 December 2006

the time the top of the sun starts to become visible, or the time that the sun is completely visible on the horizon?

2006-12-04 14:44:34 · 10 answers · asked by sunrisesover12th 2 in Astronomy & Space

In humans, short fingers(brachydactyly) [B] and woolly hair [W] are dominant over the recessive alleles for normal fingers [b] & normal hair [w]. A man with brachydactyly & normal hair marries a woman with normal fingers & woolly hair. Their 1st child has normal fingers & normal hair.

a- What is the genotype of the man?
b- What is the genotype of the woman?
c- What is the genotype of the child?
d- What is the probability of any child of the above mentioned mating having normal fingers?
-------
I think I have to make a Dihybrid cross.From the info given, I think the man is Bbww, the woman is bbWw & the child is bbww. I have to SHOW it though,what is my dihybrid supposed to be made of though?What goes on top- on the left?

a- Dad= heterozygous?
b- Mom= heterozygous?
c- Child=homozygous?
d- 50-50 chance

Please Help explain this to me, I Don't know what combinations should be in my punnett square, what letters go where? Thanks so Much! = )

2006-12-04 14:44:23 · 3 answers · asked by Miss*Curious 5 in Biology

A baseball is launched from ground level with initial velocity of 38m/s inclined at 25 degrees to the horizontal.

We established in class that the ball would be in the air for

t = 2v0y /g = 3.3s

2006-12-04 14:43:15 · 5 answers · asked by Anonymous in Physics

1) -0.1666...

(.... means repeats)




Here is an example. Although I've been working on this problem and I still dont understand it. Thanks for your help. :)

a) 0.5555...

Let N= 0.555... Then 10N= 5.55... (Multiply N by 10 because one
digit repeats)

10N=5.555...
-1N =0.555... (10N-N=9n)
-------------------
9N= 5 (Divide each side by 9)

N= 5/9



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hope this example helps! Thanks to all who helps :)

2006-12-04 14:42:58 · 2 answers · asked by Kat 2 in Mathematics

calcium oxide + water


silver chloride decomposes to?

iron(3) carbonate decomposes to ?


sliver plus phosphoric acid (singe replacement)

2006-12-04 14:42:17 · 1 answers · asked by Anonymous in Chemistry

I understand the method, but why is it "scientific"?

2006-12-04 14:41:49 · 3 answers · asked by ruby f 2 in Mathematics

or is it another dazzling mission for NASA?

2006-12-04 14:39:17 · 5 answers · asked by JOEG 1 in Astronomy & Space

wat is the answer

2006-12-04 14:38:55 · 8 answers · asked by Jorge jr B 1 in Mathematics

What's the difference between the two kind of stainless steel? I will be greatful if you can tell me the mechanical property and the application scop of the materials.

2006-12-04 14:38:33 · 2 answers · asked by Anonymous in Engineering

Formation of a gas during a chemical reaction is a common sign of what type of reaction?

2006-12-04 14:38:24 · 2 answers · asked by nglennie_06 1 in Chemistry

I have done them all but 2 i just don't get and 2 I need to check if they are correct
1)

2x+3y=31
y=x+7






2)


y=3x
x=3y

2006-12-04 14:37:07 · 10 answers · asked by Anonymous in Mathematics

H3PO4 + Ca(OH)2 - >

2006-12-04 14:37:02 · 2 answers · asked by Anonymous in Chemistry

2006-12-04 14:35:38 · 4 answers · asked by Anonymous in Geography

2006-12-04 14:34:10 · 1 answers · asked by Jonny mac 1 in Physics

The board is fixed to two pedestals separated by distance d=1.5m. Of the forces acting on the board, what are the (a) magnitude and (b) direction (up or down) of the force from the left pedestal and the (c) magnitude and (d) direction (up or down) of the force from the right pedestal? (e) Which pedestal (left or right) is being stretched, and (f) which is being compressed?

Answers :(a) 1.2kN
(b)down
(c)1.7kN
(d)up
(e)left
(f)right

Dont know how they got these answer so if you can please shoe how.

2006-12-04 14:33:45 · 2 answers · asked by gods1princesschanel 1 in Physics

directions: factor
i dont know how to do it.
plz help me.

2006-12-04 14:33:20 · 5 answers · asked by Kancho 2 in Mathematics

Calculate the freezing point of watercaused by dissolving 3.8m of CaCl2 (Kf=1.0 Degrees C/m). Would this be sufficient to prevent ice from forming on the sidewalk?

2006-12-04 14:32:19 · 1 answers · asked by Anonymous in Chemistry

Can you show me an example? I have a test tomorrow and don't know how. haha Thanx in advance.

2006-12-04 14:30:00 · 3 answers · asked by culture_killer 3 in Mathematics

e is the region between the spheres x^2+y^2+z^2=1 and x^2+y^2+z^2=4 in the first octant.

theta range from 0 to 2pi, fee range from 0 to pi/2, roe range from 1 to 2. correct?
using these bounds, i get 7pi/8. it's supposed to be 15pi/16. where did the extra pi/16 go? what could possibly be the problem?

2006-12-04 14:29:03 · 2 answers · asked by nickname 3 in Mathematics

need this for a test.

2006-12-04 14:29:02 · 4 answers · asked by Anonymous in Chemistry

Earlier today in my science class we were discussing cathodes and anodes, The book I was reading (Glencoe Science) said that the anode had a positive charge where as the dictionary and my teacher said the opposite. I figure an= anti = negetive I really don't know!!!!

2006-12-04 14:26:12 · 6 answers · asked by bubear_1293 1 in Engineering

become heavier, lighter or would it keep its weight
while time passes.. ?

No doubt this would be impossible
but what if...

2006-12-04 14:25:44 · 5 answers · asked by blondnirvana 5 in Astronomy & Space

2006-12-04 14:24:32 · 9 answers · asked by Anonymous in Geography

3
- = ? percent
5

2006-12-04 14:22:37 · 6 answers · asked by Anonymous in Mathematics

A mutant is found in which the operon is uninducible. Assuming the affected gene makes a protein, what kind of transcriptional regulator could the gene produce?

2006-12-04 14:19:09 · 2 answers · asked by Bluedevils 1 in Biology

Doing a test and need this info to finish the question.

2006-12-04 14:19:01 · 1 answers · asked by Anonymous in Chemistry

2006-12-04 14:18:27 · 3 answers · asked by Anonymous in Chemistry

A 1000kg sports car accelerates from rest to 25.0 m/s in 7.5 s. What is the average power output of the automobile engine?

20.8 kW
30.3 kW
41.7 kW
52.4 kW

i worked this one over and over and i did not get any of these answers so i would appreciate it if someone could share their answers with me.

2006-12-04 14:17:43 · 3 answers · asked by strawberrylollipop12345 1 in Physics

What is the value for the molar enthalpy of decompostion for H2O2? Thanks for the Help!!!

2006-12-04 14:15:33 · 2 answers · asked by nglennie_06 1 in Chemistry

Given: PQ ll RS
PS=RQ
PS and RQ bisect each other at X
Prove: triangle PQR = triangle RSP

2006-12-04 14:12:43 · 5 answers · asked by Anonymous in Mathematics