Science & Mathematics - 30 September 2007

ok. i was wondering if i can buld something to make power? like power from sun or rain or whatever.

2007-09-30 15:39:47 · 6 answers · asked by Smart computer® 1 in Engineering

2007-09-30 15:39:25 · 6 answers · asked by Anonymous in Mathematics

Why is it necessary to follow "order of operation" ?
Please use examples to explain why!
Thanks in advance to anyone who actually tries to help!
Like:
5 x 2 + (6 - 7) + 16
Just explain any problem and tell why it is necessary to follow the order of operation to get a correct answer.
Brackets ()
Exponents
Division
Multiplication
Addition
Subtraction
Solution

2007-09-30 15:38:37 · 8 answers · asked by Anonymous in Mathematics

help

2007-09-30 15:34:34 · 5 answers · asked by Brandon M 1 in Mathematics

I know the answer is -5 I just need to know how to get it

2007-09-30 15:33:11 · 5 answers · asked by neil c 1 in Mathematics

isnt it 180? its like writing (1,0) right? and then since its like the negative x line its 180 not 0am I right??????/

2007-09-30 15:32:34 · 4 answers · asked by Anonymous in Mathematics

What are your thoughts on cloning and genetic manipulation?

2007-09-30 15:31:53 · 3 answers · asked by cj 2 in Biology

Hey. Can you help me derive these formulas using:
delta V = A (delta T)
delta X = (Initial Velocity) (Time) + (0.5) (-9.81) (time squared)

The formulas are:

(Total distance in y) = (abs value of V)^2 (sin (angle of release))^2 / (-9.81)

Height = (0.5) (abs value of V) (sin (angle of release))^2 / (-9.81)


THANKS FOR THE HELP!

2007-09-30 15:29:46 · 2 answers · asked by mimi 2 in Physics

How do i integrate (x^3)/(x-1)??? please help me out...

2007-09-30 15:29:34 · 5 answers · asked by tumbleweedyg 2 in Mathematics

what type of work was done by both newton and boyle, I am having a large amout of trouble finding understandable information on this.

2007-09-30 15:29:33 · 1 answers · asked by Olivia 2 in Chemistry

2007-09-30 15:26:39 · 4 answers · asked by em0forlife 3 in Medicine

2007-09-30 15:26:24 · 8 answers · asked by skinzfan36 1 in Mathematics

jet aircraft mechanics wearing ear protectors are able to converse with each other because the ear protectors block out the sound of the jet engine. What physics concept would account for this?

2007-09-30 15:23:24 · 1 answers · asked by dbol2005 1 in Physics

2007-09-30 15:22:38 · 4 answers · asked by Anonymous in Geography

2007-09-30 15:17:38 · 1 answers · asked by Anonymous in Medicine

A speeding car is traveling at a constant speed of 10.0 m/s when it passes a stopped police car. the police car accelerates at 7.0 m/s^2. How fast will it be going when it catches up with the speeding car?

2007-09-30 15:16:25 · 1 answers · asked by georgie0515 1 in Physics

Two same mass cars collide with each other while going at constant speed, will both of the cars exert the same force? Friction is ignored

A car hits another standing car will the moving car exert higher force on the non moving car? Both car masses are the same

2007-09-30 15:15:51 · 1 answers · asked by Greta J 2 in Physics

It's something I used in the science lab. I looked through a little hole and pointed it at something with light and then the colors showed up at certain numbers. I think it's something spectro...any ideas?

2007-09-30 15:15:45 · 5 answers · asked by Anonymous in Astronomy & Space

Let's say that any random electrical appliance used 1 kWh. How many pounds of carbon dioxide would that create?

2007-09-30 15:15:18 · 6 answers · asked by --------- 3 in Engineering

I know it's a weird question but i got it for homework and i don't know what it's talking about! Please help!

2007-09-30 15:14:15 · 3 answers · asked by Anonymous in Astronomy & Space

it says to solve the equation and write a reason for each step.

44-2(3x+4)=18x

4(5x-9)=-2(x+7)

2x-15-x=21+10x

3(7x-9)-19x=-15

2007-09-30 15:13:57 · 3 answers · asked by ihearttwirling 3 in Mathematics

please no confusing math...just a straight up answer.

2007-09-30 15:12:51 · 4 answers · asked by Anonymous in Mathematics

2007-09-30 15:09:35 · 6 answers · asked by thewolfsrealm 1 in Earth Sciences & Geology

2007-09-30 15:07:20 · 5 answers · asked by Anonymous in Astronomy & Space

2007-09-30 15:07:20 · 3 answers · asked by lovinglife~ 5 in Biology

gravity on mercury is .38 the amount it is on earth

2007-09-30 15:06:29 · 1 answers · asked by Anonymous in Physics

can someone show me any calculus problem ?? I've never took calculus and i think i might in college ....but i wanted to see a problem first! to see if i can handle it ! thanks everyone!

2007-09-30 15:04:35 · 3 answers · asked by krystal G 1 in Mathematics

What was Saturday september 31 weather report? like anything about hurricanes? the temperature, humidity and stuff like that and also please find a website that tells me saturdays weather i really really need it.

2007-09-30 15:04:03 · 3 answers · asked by questioner♥ 3 in Weather

I keep getting x=-48 howeveri do it but the calculater says its wrong?

2007-09-30 15:03:36 · 6 answers · asked by Rose 1 in Mathematics

If so.. is there a name for it or something?

2007-09-30 15:01:47 · 2 answers · asked by ehgirl 2 in Chemistry