Science & Mathematics - 22 August 2007

2007-08-22 03:40:37 · 6 answers · asked by happy c 2 in Astronomy & Space

like when you drop it off with a dropper what's the approximate volume of that drop?

2007-08-22 03:40:25 · 3 answers · asked by Anonymous in Chemistry

2007-08-22 03:28:02 · 4 answers · asked by Anonymous in Physics

How do you find the values of x and y?
100 = 6x+7y. where x+y=15?

I know the answers, but can't do the figuring. I need to apply this formula to other equations and need to know how to "do the work". Thanks in advance!

2007-08-22 03:25:42 · 5 answers · asked by Anonymous in Mathematics

I am stuck on this one problem and I have managed to create a graph. My problem is creating a table of values. Your help is much appreciated with a 5 star guaranteed feedback. The link below has the image of the problem with the graph. All I need is a table of values.

http://allyoucanupload.webshots.com/v/2004258913514474461

2007-08-22 03:22:18 · 8 answers · asked by Anonymous in Mathematics

Algebraic expression

1. eight more than the product of a number and 100

2. 20 times the difference of 9 and a number

3. the sum of 200 and 7 times a number

4. ten less than the cube of a number

2007-08-22 03:18:15 · 6 answers · asked by Qamb 1 in Mathematics

2007-08-22 03:16:59 · 8 answers · asked by tkrishnamohan91 1 in Physics

Are the answers to the problems right?

2007-08-22 03:14:42 · 4 answers · asked by Anonymous in Mathematics

?????

2007-08-22 03:11:54 · 3 answers · asked by mk 2 in Zoology

??????

2007-08-22 03:09:22 · 2 answers · asked by mk 2 in Zoology

Given tanA= (√(1-p^2))/p

find tan(A+pi/4)

2007-08-22 03:08:27 · 4 answers · asked by Stormy Knight 1 in Mathematics

I need dimensions and materials... Thanks...

2007-08-22 03:06:36 · 2 answers · asked by Ayachan 2 in Engineering

Umm im writing this post becuase last night i got pretty freaked out while i was laying in bed. The lights were off but my vision was completely adapted to the darkness so i could pretty much make out everthing in the room fine.
While i was laying there umm its kinda hard to explain but what looked kinda like a ''disturbance'' in the room. At first i just thought ok its the night playing tricks on me so i decided to try and go back to sleep. Being my usual paranoid self i decided to open my eyes as i usually do since i dont really sleep much ne way. The disturbance ill call it was in a different spot and this kinda worried me a little bit. I decided to play asleep and closed one eye and kept the other open just to see if ne thing would happen and well it kinda did. (cont in add details)

2007-08-22 02:57:33 · 7 answers · asked by █ORal-K 2 in Astronomy & Space

a bullet is fired at 280m/s at an angle of elevation 25 degrees. the bullet can be assumed to be fired from the top of a building that is 75m high. Find:

a) the max height that the bullet reaches ( found = 789.42m)
b) the time of flight
c) the range

2007-08-22 02:53:38 · 3 answers · asked by Anonymous in Physics

A test rocket is fired vertically upward from a well. A catapult gives it initial speed 80.0m/s at ground level. its engines then fire and it accelerates upward at 4.00m/s^2 until it reached the attitude of 1000m. At that point its engines fail and the rocker goes into free-fall. with the acceleration of -9.80m/s^2

a) how long is the rocket in motion above the ground
b) what is its maximum altitude?
what is its velocity just before it collides with the earth?

for all this you need to consider the motion while the engine is operating separately from the free fall motion

2007-08-22 02:51:23 · 5 answers · asked by Anonymous in Physics

64 feet / sec to meter / sec

how do I convert it?

need help. thanks!

2007-08-22 02:50:16 · 4 answers · asked by rachel is blue 1 in Physics

...Not necessarily looking for the answer just general guidance and tips. Also, what kind of problem is this? Rearranging equations?

2007-08-22 02:48:59 · 4 answers · asked by bouncing_soul_geuse 2 in Mathematics

2007-08-22 02:47:46 · 3 answers · asked by orangejuice 2 in Physics

I typed my last question wrong, so I deleted it and I'll correct it here: How would I solve the following equation-
.40x + 65 - .65x = .55
?

Thanks so much!

2007-08-22 02:41:51 · 19 answers · asked by Life On Wheels 2 in Mathematics

2007-08-22 02:39:32 · 4 answers · asked by skogie 2 in Astronomy & Space

totally confuse

xy^3 + sqr root(6xy)=12

I am basically confuse with the (square root of 6xy--)

any help would be appreciate
Thanks

2007-08-22 02:38:09 · 4 answers · asked by Anonymous in Mathematics

I need to figure out how much MMBTU's of Natural gas I need. If I have 11,074 MCF of Natural Gas, how many MMBTU's is that? Please include the formula you used. Thanks

2007-08-22 02:37:10 · 8 answers · asked by K-bo 2 in Mathematics

beeb 2 are showing a show at the moment called the cosmos for begginers, on one of the shows they said some scientists in Geniva were trying to recreate the big bang, now i'm sure they are doing it on a microscopic scale but since no one really knows what happend how can anyone say that doing it on a microscopic scale is safe(what if it happend on a micro scale in the first place) say they manage to recreate it, would that not only destroy Earth and the solar system in a matter of milliseconds but the galaxy aswell, is this something we should be trying to do? your thoughts!!!

2007-08-22 02:30:17 · 16 answers · asked by Ste B 5 in Astronomy & Space

Nature, Science, Cell etc
should they publish versions for non scientists
thereby increasing the general publics understanding of science

2007-08-22 02:28:59 · 5 answers · asked by Anonymous in Other - Science

2007-08-22 02:27:13 · 8 answers · asked by Anonymous in Zoology

I know it has something to do with the percentage in crossbreeding. I think F-1 is half and half. Correct me if I'm wrong. Thanks for your time!

2007-08-22 02:25:32 · 3 answers · asked by Ayla B 4 in Agriculture

What are the procedures to make a plant water filter?
It's for our science investigative project
our aim is to find out which plants are more effective in filtrating water.

2007-08-22 02:23:32 · 3 answers · asked by Regina 2 in Other - Science

im serous idk

2007-08-22 02:23:20 · 9 answers · asked by lilly 1 in Astronomy & Space

Chalcogens (with the "ch" pronounced with a hard "c" as in "chemistry") are the name for the periodic table group 16 (old-style: VIB or VIA) in the periodic table.

2007-08-22 02:22:48 · 2 answers · asked by login_beta23 1 in Chemistry

and every universe was made by a big bang,or just ours?

2007-08-22 02:17:49 · 3 answers · asked by Anonymous in Astronomy & Space