Science & Mathematics - 7 September 2007

I have Glaucoma, and I use Timoptol 0.5.
I travel to several countries, and, sometimes, it is simply not available (or very costly).
Timoptol is made of:
Mono and "bi-basic" sodium phosphate, Sodium hydroxyde (to rectify the Ph solution) and water for "injectables", and a "conservant" of chlor(ure/ite) of "benzalconio".
Is it any way to manufacture it my-self (safely, with a good small chemistry lab) and how ?

2007-09-07 06:49:50 · 1 answers · asked by just "JR" 7 in Chemistry

space ship is 300m and my speed is .86...Then I know the length observed by a stationary observer is: 153meters. However, what would the length be for the person inside the space ship and why? Would it appear longer than the 300m? And if so how do you find the exact number?

2007-09-07 06:49:42 · 4 answers · asked by shellyeliz 2 in Physics

If mass of earth is 5.98e24 kg and its diameter is 15000 km.
How can I get constant (a)?

2007-09-07 06:48:49 · 3 answers · asked by Blacksmith 2 in Physics

Express the function (or rule) f(x) = x/6- 4 in words.

a. Subtract 4, then divide by 6
b. Subtract 6, then divide by 4
c. Divide by 6
d. Divide by 6, then subtract 4
e. Divide by 6, then add 4

2007-09-07 06:48:37 · 3 answers · asked by Anonymous in Mathematics

Let i = sqrt(-1) (that is, let i = (-1)^(1/2)
i = i^5
log (i) = log (i^5)
log (i) = 5*log (i)
1 = 5

Q.E.D

What's wrong with this?

2007-09-07 06:48:26 · 5 answers · asked by farful 4 in Mathematics

Can any doctor help me in taking decision to use HGH HORMONE PILLS to increase my vitality and breast size?I have gone through so many health magazines and observed that so many heriones and other public figures use HGH hormone pills to increase their breast size and overall vitality.Will the pills helpful in doing so without any major side effects in long run? I have another doubt why others are going for surgery for increase the size of the breasts without using the pills . kindly any doctor clarify me as I want to use these pills. I am of 37 age and underwent Hysterectomy 2 years back. Pl.suggest me.

2007-09-07 06:47:34 · 10 answers · asked by ravbaj 1 in Medicine

1. Find the center and the radius of the circle, (x+4)squared +(y+1)squared=100.
2. Write an equation of the circle that has center(1,5) and is tangent to the y-axis.
3. Find the midpoint of the segment with endpoints (a-2,b) and (a+4,b)

2007-09-07 06:45:00 · 2 answers · asked by STAN 3 in Mathematics

Don't they know mercury could be poisonous. Dyed alcohol would be much safer, right?

2007-09-07 06:44:41 · 5 answers · asked by Alexander 6 in Physics

How does the regenerator works. does it store the energy or some how reused the unused energy? if yes how...

2007-09-07 06:42:43 · 3 answers · asked by Nehemiah L 1 in Engineering

The specific equation I'm trying to solve is:
dv/dt = ae^(bt) - cv
where a, b and c are positive constants.
I know how to solve differential equations of the form
dv/dt = f(t)g(v)
but not
dv/dt = f(t) + g(v).

2007-09-07 06:42:35 · 3 answers · asked by Mark R 2 in Mathematics

need help plz answer ? thanks

2007-09-07 06:41:23 · 4 answers · asked by jumpy j 1 in Other - Science

2007-09-07 06:41:06 · 8 answers · asked by Alexander 6 in Physics

I've always wondered if the monthly period that our women have are ever seen in any other females - i heard that rabbits have them - is that tru?

2007-09-07 06:36:05 · 15 answers · asked by Anonymous in Zoology

The rain falls harder or seems more enhanced, particularly when the thunder (i.e. lightning) is right over head. I am accounting for the fact that this could be the beginning or front edge of a storm, but this occurs even during a shower or after one has commenced. It doesn't happen all the time, but quite often. My question is, does the expansion of the air/rushing back effect after lightning cause this?

2007-09-07 06:33:41 · 6 answers · asked by chris_6212 1 in Weather

Solve the equation 1/2x ^2 - 11/2x + 15 = 0 by completing the square.

a. x = -1 ± 5 √6
b. x = 5 or 6
c. x = -5 or -6
d. x = 11/2or 12
e. x = 1/2 or -1

2007-09-07 06:32:18 · 7 answers · asked by Anonymous in Mathematics

Explanation: 27a to the 4th exponent minus a.

2007-09-07 06:29:38 · 10 answers · asked by nealee 2 in Mathematics

2007-09-07 06:27:06 · 2 answers · asked by Anonymous in Zoology

X= 10(cosx+xsinx)
Y= 10(sinx-xcosx)
What is the length of the curve from 0 to (3pi/2)

2007-09-07 06:26:59 · 2 answers · asked by tchoxi2000 1 in Mathematics

Evaluate the expression (3i)^4 and write the results in the form a+ bi.

a. -81
b. -16
c. 4
d. 16
e. 81

2007-09-07 06:26:22 · 4 answers · asked by Anonymous in Mathematics

I was watching how its made, the steel episode, and i was wondering... How long would it take? and the pain... wouldn't the extreme heat overload the part of your brain that feels pain, causing you to pass out?

2007-09-07 06:20:02 · 12 answers · asked by alex e 1 in Chemistry

i am thinking the answer of the book is wrong, but could someone check the answer, thanks so much !!!

2007-09-07 06:10:42 · 4 answers · asked by thankyouforhelp 1 in Mathematics

find:a ,b =?

2007-09-07 06:08:39 · 14 answers · asked by nasser a 2 in Mathematics

What is the oppinion of it's effectiveness for the use of withdrawl symptoms after discontinuing oxycontin?

2007-09-07 06:08:34 · 2 answers · asked by Anonymous in Medicine

can you give me examples so its easy to picture em'?

2007-09-07 06:07:36 · 3 answers · asked by shanekeavy 5 in Engineering

Evaluate the integral from 0 to pi/2 of cos^3 (x)dx

I got to the end and my answer was negative.

Please show step by step work.

2007-09-07 06:04:07 · 6 answers · asked by Anonymous in Mathematics

A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter. Solution/Explanation

2007-09-07 06:03:50 · 8 answers · asked by Vonnie 2 in Mathematics

2007-09-07 05:55:35 · 4 answers · asked by Anonymous in Chemistry

Can the 2005 hurricane season just be categorized a crazy event in weather history?

The 2006 season didn't have any major hurricanes and so far the 2007 hurricane season seemes to be a bust like the 2006 season.

2007-09-07 05:53:06 · 2 answers · asked by ryan_runner 3 in Weather

2007-09-07 05:52:49 · 6 answers · asked by Anonymous in Astronomy & Space

How Can I Become Perfect In Maths And Get Good Marks????????????????????????????????????????????
Please Tell Me I Am NEEDY FOR THE ANSWERS!!!!!!!

2007-09-07 05:50:05 · 30 answers · asked by Mysterious Guy 2 in Mathematics