Science & Mathematics - 17 October 2007

An atom is a mere millionth-trillionth-trillionth of a cubic meter in volume (0.000000000000000000000000000001 cubic meter).The solar system is a thousand-trillion-trillion cubic meters in volume (1,000,000,000,000,000,000,000,000,000).How many atoms could fit, tightly packed,into an object the size of the solar system?

2007-10-17 14:56:09 · 2 answers · asked by Anonymous in Physics

Ok, so I'm ion that part of our life when we gotta choose our future. So, I'm here to find out a little bit more about one of my biggest options (actually the biggest): Physics.
Although I love the subject on its own, - specially all the waves, colours, sound, etc. - I have no idea on what is to be a physicist.
I wanted to find out:
-What kind of jobs there are available after you graduate
-When do I've to choose (If I do) my sub-physic
-How is the carreer itself.

I'd really apriciate any kind of information you can give me, so please don't be shy, and if you know something, post it.

Thanks a million to everyone that can help me :) .

2007-10-17 14:54:59 · 5 answers · asked by Sebolains 2 in Physics

A person walks 100m E, then 280 m S, then he walks 150.0 m at a 30.0 S of W, and then 200.0 m and a 60.0 angle north of west. what is the person's resultant displacement measured from the starting point?

2007-10-17 14:54:48 · 1 answers · asked by Maddi J 2 in Physics

2007-10-17 14:54:09 · 2 answers · asked by Anonymous in Chemistry

2007-10-17 14:53:17 · 3 answers · asked by itanjula_townsend 1 in Zoology

the patient has a medtronic pacemaker and would like to purchase an emergency phone dialer from Radio Shack

2007-10-17 14:51:21 · 4 answers · asked by carla h 1 in Medicine

At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8965 g sample of impure sodium chlorate was heated until the production of oxygen gas ceased. The oxygen gas collected over water occupied 57.2 mL at a temperature of 22°C and a pressure of 738 torr. Calculate the mass percent of NaClO3 in the original sample. (At 22°C the vapor pressure of water is 19.8 torr.)
_____________ %

How would I do this?? I don't know where to start?

2007-10-17 14:50:39 · 1 answers · asked by k102518 2 in Chemistry

If the solubility constant for oxygen in blood plasma is 2.3 mL/(dL plasma-atm), how many mL of oxygen are dissolved in 1.00 dL of blood plasma at an atmospheric pressure of 2.50 atm inside a hyperbaric chamber?


a. 5.8 mL
b. 6.9 mL
c. 1.2 mL
d. 3.5 mL
e. 0.77 mL



is d the right answer?

2007-10-17 14:49:10 · 1 answers · asked by Anonymous in Chemistry

The coefficients of static and kinetic friction between a 559 crate and the warehouse floor are 0.665 and 0.420, respectively. A worker gradually increases his horizontal push against this crate until it just begins to move and from then on maintains that same maximum push.

What is the acceleration of the crate after it has begun to move?

Please show steps on how to work.

2007-10-17 14:45:56 · 1 answers · asked by Anonymous in Physics

The flake-bowl contact is frictionless.
(a) How much work is done on the flake by its weight during the flake's descent to the bottom of the bowl?
J
(b) What is the change in the potential energy of the flake-Earth system during that descent?
J
(c) If the potential energy is taken to be zero at the bottom of the bowl, what is its value when the flake is released?
J
(d) If, instead, the potential energy is taken to be zero at the release point, what is its value when the flake reaches the bottom of the bowl?
J

2007-10-17 14:43:04 · 1 answers · asked by tosinjesu 1 in Physics

Express dy/dx in terms of y and x if y is defined by sq(y+x+1)=(y+x)^(1/3)..

how do u solve this????

2007-10-17 14:42:49 · 1 answers · asked by bmk266 1 in Mathematics

We did a "group" activity on a field trip I went on recently, and my Chem teacher is having me write a paper on it for that days credit. We had pipes that were cut longways and were rolling the golf ball down those. What would be a good topic (as in a science related topic) to write about useing this experence?

2007-10-17 14:41:25 · 1 answers · asked by T.K. 2 in Physics

Sorry there is no photo.

Its a small (about the size of a pencil eraser) red spider with long segmented legs. It's red all over excepting for what appears to be some black banding around its abdomen part.

What is it...and is it poisonous? It startles me every morning, appearing near the sink.

2007-10-17 14:41:10 · 4 answers · asked by Anonymous in Zoology

2007-10-17 14:36:42 · 5 answers · asked by dbzgt10_ 3 in Mathematics

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Jazz%20207h/Picture3.png

2007-10-17 14:35:16 · 3 answers · asked by Anonymous in Mathematics

2007-10-17 14:34:26 · 1 answers · asked by Zyaire L 1 in Earth Sciences & Geology

Mitosis results in:
A) Four cells with identical genes
B) Two cells with different genes
C) Two cells with identical genes
D) Four cells with different genes


Meiosis results in:
A) Two cells with identical genes
B) Four cells with identical genes
C) Two cells with differnt genes
D) Four cells with different genes




Diploid cells have

A) Half the chromosomes of the parent organism.
B) Twice the number of chromosomes of the parent organism.
C)The regular number of chromosomes of the parent organism

2007-10-17 14:34:20 · 2 answers · asked by Anonymous in Biology

Another survery with 21 ppl... 10% sadi [A].... 10% sais [B]
and 80% said [C] how many people said what ??

2007-10-17 14:32:29 · 15 answers · asked by mybratt66 1 in Mathematics

2007-10-17 14:32:15 · 13 answers · asked by lorea 1 in Geography

Four forces act on a hot-air balloon with F1 = 1690 N and F2 = 5020 N Find the magnitude and direction of the resultant force on the balloon.

2007-10-17 14:31:30 · 2 answers · asked by maxk222 1 in Physics

More detail..If two magnetic structures, one positive and one negative, on Mars' poles ( south and north ), could the atmostphear be protected like it is here on Earth from the Suns solar winds?
Creat the same effect thats naturally happening on Earth on Mars.
Could this be posible and not just science fiction?
It's a vision I had and was wondering if it's a posible solution to colonizing Mars in the future.
Making sure, of course that this doesn't affect us on Earth.
Just wondering...Thanks

2007-10-17 14:23:57 · 6 answers · asked by Anonymous in Astronomy & Space

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Jazz%20202h/Picture4.png

2007-10-17 14:23:34 · 2 answers · asked by Anonymous in Mathematics

2007-10-17 14:22:05 · 6 answers · asked by burban 2 in Mathematics

Or are they just simply predictions?

2007-10-17 14:21:14 · 6 answers · asked by cola 5 in Astronomy & Space

2007-10-17 14:18:16 · 33 answers · asked by Savanna 6 in Geography

I have been working on this for a while and can't figure it out. It has been really troublesome for me. Any help would be appreciated.

Suppose that n people numbered 1 to n are lined up with their backs to a wall. Starting at the end of the line, eliminate every other person until only 1 survives. Reverse directions when you reach the end of the line. For example, for n=10, the elimination order is 2,4,6,8,10,7,3,5,1 so the survivor is 9. Let s(n) denote the survivor's number (hence S(10)=9). Find a recursive definition for S(n). You should have a base case and 2 recursive cases-- one for S(2k) and S(2k+1).

2007-10-17 14:15:21 · 1 answers · asked by A A 2 in Mathematics

what is the relationship between climate and vegetation patterns?

2007-10-17 14:12:46 · 2 answers · asked by pat s 1 in Weather

I've always had paranormal activity go on in my house. Please give me some ideas on how 2 hear them, feel them and see them.

2007-10-17 14:12:11 · 17 answers · asked by Anonymous in Paranormal Phenomena

Is there enough atmosphere on Mars to Make it so?
A jet ?
A lawnmower ?

2007-10-17 14:07:50 · 15 answers · asked by TicToc.... 7 in Astronomy & Space

If the solution is the same, the question does not matter.
If the solutions are different, it means that the overload of CO2 creates a different problem if man-made, or notl.
Which is right or logical?

2007-10-17 14:05:45 · 7 answers · asked by baypointmike 3 in Earth Sciences & Geology