Science & Mathematics - 4 September 2007

can we really comprehend it?

i mean sure it is easy to say it..see
SPACE IS INFINITE

but can you really grasp the concept that it never actually ends. its not a sphere where you can keep going in circles forever, i mean it streches forever in every direction. i mean it literally streches forever. its mind boggling to think that it NEVER ends. i mean at times you think that the earth is there, and it ends, just like a road, a city, a county, a state, a country everything, it just ends. yet in reality nothing ever has to end. because you will never run out of space, there is always more, even billions or trillions of years from now there will be more space, and billions or trillions of years from then, the space will never run out, because it never ends.

2007-09-04 19:51:48 · 12 answers · asked by Deleted 2 in Astronomy & Space

An electrical circuit switches instantaneously from a 6 volt battery to a 12 volt battery 7 seconds after being turned on.

Graph the battery voltage against time.

Give formulas for the function represented by your graph.

2007-09-04 19:51:27 · 3 answers · asked by i<3WL 2 in Mathematics

http://a901.ac-images.myspacecdn.com/images01/100/l_149c66c410f38bc40fd2a5a7490faf74.jpg

I would like to know what kind of spider this is because they are all over and around my house. I am fixing to have a baby and I really would feel better if I knew what kind of spider it is...

2007-09-04 19:50:50 · 7 answers · asked by blue eyed gurl 1 in Zoology

2007-09-04 19:50:38 · 4 answers · asked by mary 3 in Biology

Why are some meds to be taken on an empty stomach, while others with a meal?

Thanks!

2007-09-04 19:49:37 · 7 answers · asked by aarjop 1 in Medicine

y = -2x 2(squared) + 11x + 21

How do I work this out manually?
Can I use the quadratic formula?

2007-09-04 19:48:03 · 2 answers · asked by Anonymous in Mathematics

Given a well-mixed deck,what is the probability that neither dealer nor you are dealt blackjack?

- A two-card hand of 21 (an ace plus a ten-value card) is called a "blackjack".

2007-09-04 19:38:44 · 3 answers · asked by Express F 1 in Mathematics

2007-09-04 19:33:08 · 10 answers · asked by lushcious 1 in Astronomy & Space

what is the details and preparation of solfuric acid?

2007-09-04 19:32:40 · 3 answers · asked by m n 1 in Chemistry

2007-09-04 19:31:45 · 17 answers · asked by T-Luv 4 in Astronomy & Space

2007-09-04 19:29:58 · 1 answers · asked by jennifer w 1 in Chemistry

2007-09-04 19:28:01 · 8 answers · asked by vinay j 1 in Geography

2007-09-04 19:22:30 · 30 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-04 19:21:22 · 9 answers · asked by Anonymous in Earth Sciences & Geology

(x^3 - xy^2 )..... ( x^2 + xy ) ... y
------------- ...... x ------------------ x----------
x^2 + 2xy + y^2 ) ..... ( x^2y - xy^3 ) .... x^2


(a^2 b - ab^2 ) .... ( a^2 - b^2 ) ... ....... ... (b^2)
---------------- x ----------------- ----- x -----------
(a + b ) ................. ( ab^2 - b^3) ............... (a^2 - ab)


(a^3 - 3a^2).......... (b^2 - 4) ...... .... ...... (ab - 2a)
----------------- x --------------------- divided by ------------------------
(b^2 + 2b) ...... ........ (a^2 b - 3 ab) ... ... .. .... (b^2 - b^3)


(x^3 + y^3) ..... (x^2 - xy - 6y^2)...... . (x^2-xy+y^2)
------------------------- x ------------------------ divided by-----------------
(x^2 + 3xy + 2y^2) ....... ( x^2 - 2xy - 3y^2) ....... (2x^2 + 2xy).....

2007-09-04 19:20:54 · 2 answers · asked by Anonymous in Mathematics

2007-09-04 19:20:15 · 5 answers · asked by taraki 3 in Mathematics

The question: There are 3 substances, that is solid, liquid, and gas substance. Between those three substances, there is one substance named plasm. Tell anything you know about plasm.

Experts Only! Serious answers needed!

2007-09-04 19:18:13 · 4 answers · asked by q is stupid 3 in Physics

This is the complete question:
A patient is brought into hospital having overdoesd on the weak acid, paracetamol (pKa = 9.5). It has been a few hours since they ingested the drug so it is decided to facilitate clearance of the drug by adjusting the patient's urinary pH. Determine if you would administer sodium bicarbonate (makes urinary pH~8) or ammonium chloride (makes urinary pH~4) to facilitate excretion of paracetamol. Explain the rationale behind your selection based on the principles of pharmacokinetics.

2007-09-04 19:17:48 · 4 answers · asked by Anonymous in Medicine

I've tried to work them out and answer them.
I don't seem to get the correct answers. Please help.

1) During a hard sneeze, your eyes might shut for 0.42 s. If you are driving a car at 78 km/h during such a sneeze, how far does the car move during that time?

2) In 1 km races, runner 1 on track 1 (with time 2 min, 39.18 s) appears to be faster than runner 2 on track 2 (2 min, 39.25 s). However, length L2 of track 2 might be slightly greater than length L1 of track 1. How large can L2 - L1 be for us to conclude that runner 1 is faster?

3) A particle's position is given by x = 18.0 - 15.0000000000000000t + 3t2, in which x is in meters and t is in seconds. Where is the particle when it momentarily stops?

4) At a certain time a particle had a speed of 14 m/s in the positive x direction, and 6.8 s later its speed was 85 m/s in the opposite direction. What was the average acceleration of the particle during this 6.8 s interval?

2007-09-04 19:17:16 · 2 answers · asked by Timmmsays 2 in Physics

2007-09-04 19:15:47 · 1 answers · asked by Anonymous in Engineering

If the scientist discover new animals,they can call them:
land shrimp (new kind of lizard)
dessret octopus (new spider)
forest pike
mountain tuna
sand jellyfish
wood squid

2007-09-04 19:13:23 · 4 answers · asked by Alex N 3 in Zoology

Find all solutions to the equation tan x = 1
a. x=pi/4+pi(n)
b. x=pi/4 2+2pi(n)
c. x=3pi/4+pi(n)
d. 3pi/4+pi(n)

2007-09-04 19:12:52 · 1 answers · asked by austin 1 in Mathematics

what should be the insulator's properties in each case? thanks

2007-09-04 19:11:00 · 1 answers · asked by Anonymous in Engineering

A fuse rated 10A 250V,the 250V is the max voltage it can stands when opened or blown, am I correct? Or it has another meaning?

2007-09-04 19:09:05 · 6 answers · asked by A learner 1 in Engineering

2007-09-04 19:06:08 · 13 answers · asked by Anonymous in Weather

2007-09-04 19:05:35 · 8 answers · asked by Anonymous in Weather

2007-09-04 19:04:17 · 7 answers · asked by Anonymous in Astronomy & Space

what is ^ in maths

2007-09-04 18:59:18 · 10 answers · asked by harishsatishchandra 1 in Mathematics

What is the answer to this equation and how do I solve it?

2007-09-04 18:48:22 · 11 answers · asked by Elroy B 1 in Mathematics

2007-09-04 18:45:24 · 1 answers · asked by ram 1 in Chemistry