Science & Mathematics - 16 December 2006

2006-12-16 03:09:00 · 7 answers · asked by Anonymous in Zoology

The probabilty of a given U.S B-17 crewman being show down on any given bombing run over germany in world war 2 is 4.5%
A- What would the probability of crewman surviving 25 bombing runs, the stipulated tour of duty?
B-What tour of duty would have given a survival rate closest to 50%?
C- What would be the life expectany of crewman, in average number of bombing runs?

2006-12-16 03:08:52 · 2 answers · asked by Marcus Aldrige 1 in Mathematics

if its fall here and its about to be winter and at the other side of the world its spring and its about to be summer would that mean christmas is in summer at the other side of the world????????

2006-12-16 03:06:47 · 3 answers · asked by Saaam 6 in Weather

A fair die is tossed repeatedly and each outcome is recorded. What is the expected number of tosses before the first repeat occurs?

2006-12-16 03:06:38 · 4 answers · asked by Marcus Aldrige 1 in Mathematics

Are there breaks to help slow or stop the decent if it is over the weight limit? Also, do the chords holding it up ever snap causing a full speed drop to the bottom?

2006-12-16 03:00:33 · 5 answers · asked by John 2 in Engineering

Imagine that a new asteroid is discovered in the solar system with a circular orbit and an orbital period of 5 years.

What is the average distance of this object from the sun in earth units? Answer in units of AU.

If you could please show me how to do it, it would be greatly appreciated.

2006-12-16 02:58:22 · 6 answers · asked by PHYgirl 1 in Physics

Alright guys,

Ive always been fascinated with the science and physics realm of things, although most of the time i dont understand the concept of alot of scientific truths and theory's yet i still like to exercise my mind to try and understand it.

But the thing that ive been trying to get my head around lately is E=MC2 and i have watched a short movie about it and have a limited understanding as to what it means, but not a full understanding. I know that energy can be turned into matter and matter into energy and the more momentum something has the more heavier and powerful it becomes....squared.

Is there anyone who understands this equation in depth and if so can u try to explain in simple terms?...so that i might be enlightened as to something that is very relative?

Thanks

2006-12-16 02:52:38 · 17 answers · asked by michael_wheeler1 1 in Physics

2006-12-16 02:52:06 · 21 answers · asked by Anonymous in Mathematics

2006-12-16 02:51:32 · 8 answers · asked by cookies 2 in Other - Science

2006-12-16 02:48:16 · 5 answers · asked by toniferreira 6 in Botany

2006-12-16 02:46:52 · 4 answers · asked by sonatbiba 2 in Chemistry

2006-12-16 02:39:58 · 9 answers · asked by chris787782 2 in Zoology

What is the composition of the sun? I will be grading on speed, accuracy, multiple sources (to see that you didn't just pick the first answer you saw), and length (keep it short and to the point, or no best answer for you! I don't want a half-page narrative). Thanks! :)

2006-12-16 02:39:11 · 11 answers · asked by pito16places 3 in Astronomy & Space

2006-12-16 02:36:21 · 3 answers · asked by peace 1 in Physics

2006-12-16 02:33:56 · 1 answers · asked by Anonymous in Botany

2006-12-16 02:31:46 · 17 answers · asked by Anonymous in Astronomy & Space

2006-12-16 02:31:45 · 2 answers · asked by mahmaterial 1 in Chemistry

2006-12-16 02:31:28 · 7 answers · asked by Anonymous in Mathematics

It blows my mind trying to figure this 1 out...see if theres any brain child prodigy's among this yahoo crew

2006-12-16 02:29:37 · 18 answers · asked by michael_wheeler1 1 in Physics

Based on gravity, where would you expect to find more craters? A) dark side of the moon b) light side of the moon

2006-12-16 02:28:05 · 7 answers · asked by Anonymous in Astronomy & Space

My teacher asked me this question in a viva voce...Could nt answer

2006-12-16 02:26:15 · 8 answers · asked by robin 3 in Engineering

Penny wishes to take a picture of her image in a plane mirror. if the camera is 1.4 m in front of the mirror, at what distance should the camera lense be focused?

Does this have anything to do with 1/di + 1/do = 1/df ?

2006-12-16 02:23:09 · 3 answers · asked by HT2791 1 in Physics

2006-12-16 02:20:03 · 2 answers · asked by Jonathan E 1 in Chemistry

a) Express this in moles
b) How many moles of oxygen will combine with one mole of x (x= 27)
c) What is the simplest formula of x oxide?
pls show working

2006-12-16 02:19:50 · 3 answers · asked by omoh 1 in Chemistry

Inbreeding exposes us to dangers of genetic diseases and other things because of expression of some of the lethal recessive genes. It can be a problem for us also when we get married to one of our close relatives.

2006-12-16 02:19:47 · 8 answers · asked by Deepak P 2 in Biology

2006-12-16 02:15:07 · 8 answers · asked by paul b 1 in Biology

Of the following stars, whisch one is the brightest?
A. nova
B. Sun
C. White dwarf
D/ Red goamt

2006-12-16 02:13:15 · 9 answers · asked by naviamarie 1 in Astronomy & Space

mgh = .5mv^2
if L = .66 m, and the pendulum is left at an angle of 12 degrees to the vertical, how do I DERIVE the height? What's the physics behind it?

2006-12-16 02:12:19 · 5 answers · asked by Ankit G 1 in Physics

a) Cl2 are there in 7.1g of Cl.
b) Ag are there in 10.8g of Ag.
c) NaOH are there in 20cm3 of IN solution.
d) S8 are there in32g of Sulphur.


Please state the steps you used to get your answers

2006-12-16 02:11:20 · 1 answers · asked by omoh 1 in Chemistry

Measurement shows that 3.6E-10% of atoms in a sample of radioactive isotope disintegrate in 1.7 yr. What is the half-life (in years) of the process?

The teacher gave me the answer at 3.3E11 yr
But I have no idea how to do this problem! Please help me !

2006-12-16 02:08:38 · 2 answers · asked by jnieves01 1 in Chemistry