Science & Mathematics - 15 September 2007

I'd like a less patrinizing veue, because my science didn't exactly explain it well. how is there no such thing as a closed system?

2007-09-15 06:17:54 · 3 answers · asked by Crazygirl ♥ aka GT 6 in Physics

explain how u found ur answer

2007-09-15 06:14:21 · 4 answers · asked by Anonymous in Mathematics

2007-09-15 06:13:31 · 9 answers · asked by Baka_Mochi 2 in Mathematics

2007-09-15 06:13:12 · 22 answers · asked by happy 1 in Other - Science

2007-09-15 06:12:50 · 7 answers · asked by divya sundar 1 in Chemistry

2007-09-15 06:12:19 · 4 answers · asked by ? 1 in Weather

is there other colour ,other then that we can see?is there any other taste that we never tried?is there any voice that we never ever heard?can we create or discover any other new sound or voice?

2007-09-15 06:05:48 · 5 answers · asked by Anonymous in Physics

2007-09-15 06:01:36 · 2 answers · asked by Anonymous in Geography

Well im a feshmen and taking physics and i dont know how to calculate free fall help me?!

2007-09-15 06:00:18 · 5 answers · asked by shawnmp93 1 in Physics

people are talking to me about it

2007-09-15 05:56:40 · 7 answers · asked by Anonymous in Other - Science

what is 0.000189 in scientific notation? please help! i need this answer asap.
thanks

2007-09-15 05:54:24 · 9 answers · asked by hollistergirlie07 1 in Mathematics

explain why the animal you chose has what it takes to win and why the other one won't win.

2007-09-15 05:53:57 · 6 answers · asked by polly-pocket 5 in Zoology

work because i cant include pressure in them . the variables are D=diamter of pressure vessel, d= diamter of barrell, L= length of pressure vessel, l = length of barrell, t = time for valve to open, g = weight of projectile, p = pressure in psi/bar and i can use the frictional force of the barrel material and projectile material if needed

2007-09-15 05:50:18 · 2 answers · asked by mrx 1 in Engineering

what equipment can be used to measure Length, volume, mass, and temprature in scince lab??????


how do you know how many significant digits (numbers) to include in a measurement?

2007-09-15 05:49:33 · 4 answers · asked by Anonymous in Other - Science

If a person can jump a maximum horizontal distance (By using a 45 degree projection angle) of 3.0m on the Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g=9.8m/s^2? Repeat for Mars, where the acceleration due to gravity is 0.38g.

The answers are:
18m on the moon; 7.9m on Mars.

How do I arrive at those answers?

2007-09-15 05:46:01 · 1 answers · asked by angelic_vizn 2 in Physics

2007-09-15 05:43:13 · 10 answers · asked by crip4life braa 1 in Mathematics

1. If 80 = m
2. If RS = TU and TU = YP, then RS = YP

3. If 7x = 28, then x=4

4. If VR + TY = EN + TY, then VR = EN

5. If m<1 = 30 and m<1 = m<2, then m<2 = 30

2007-09-15 05:42:51 · 4 answers · asked by *smitty #17 1 in Mathematics

2007-09-15 05:41:15 · 5 answers · asked by Anonymous in Astronomy & Space

help help

2007-09-15 05:35:54 · 7 answers · asked by t_shwani 1 in Mathematics

Its not Homework but im not really getting it in Class. Can someone explain the whole idea?
Thanks

2007-09-15 05:35:36 · 6 answers · asked by Gabby M 1 in Physics

2007-09-15 05:27:02 · 6 answers · asked by Anonymous in Astronomy & Space

I was just wondering what peoples theories were about black holes. I know that we do not posses the technology to venture into one and even light cannot escape. What do you think is on the other side of a black hole. A wormhole to another regeion of space? A crushing force of infinate mass?

I'm just curious to see what other people think is inside a black hole. The only thing I know is that the closer you get to a black hole, the slower time goes. For example, if you where to have two identical watches and drop one in, the watch that is traveling towards the black hole would start to slow down. So say 30 seconds have passed since you dropped the one watch in, the watch that is travelling towards the black hole would only read 15 seconds have passed. Pretty interesting.

So whats your take?

2007-09-15 05:26:40 · 7 answers · asked by Anonymous in Astronomy & Space

Do the American Flags still stand on the moon? Any pictures from Hubble to support this?

2007-09-15 05:19:30 · 7 answers · asked by Anonymous in Astronomy & Space

2007-09-15 05:14:52 · 2 answers · asked by dieselbgood 1 in Engineering

i puted down 28 pounds is it right what is the answer

2007-09-15 05:05:08 · 4 answers · asked by t_shwani 1 in Mathematics

find the slope and the y intercept of the line determined by the equation which is -2(x+3y)=5 please no negative remarks, all of your help will be greatly appreciated.

2007-09-15 05:03:55 · 4 answers · asked by Anonymous in Mathematics

2007-09-15 05:03:52 · 2 answers · asked by Anonymous in Engineering

1. On graph paper, graph the equation: y= -3x+1
2. Find the point of intersection graphically for x=3 and y+ 5=2x
3. Find the x-intercept and y-intersept of the line, then graph: 2x-y=6
4. Write the equation of the line that passes through the points (3,2) and (5,8).
5. What is the slope of the line 4x-8y=16?
6. Write the equation of a line that has slope -2 and passes through (3,5).
7. Standard form of an equation of a line is Ax+By=C ..Write y=2/5x-3 in standard form using integer coefficients.
8. Graph the inequality: y>2x-4
9. Solve the inequality: 2y-5<7
10. Solve the inequality: 5-x is greater than or equal to 4
11. Graph the solution on a number line for -2 is less than or equal to 3x-8 which is less than or equal to 10
12. Graph the solution on a # line for 3x+1<4 OR 2x-5>7
13. Solve this system of equations: 3x+5y=12 AND 7x-5y=28
14. Solve system of equations: y=3x+1 AND 2x+2y=18
15. Equation of line parallel to y=3x+7
16. Write the equation of a line perpendicular to y=3x+7

2007-09-15 05:03:51 · 5 answers · asked by bella♥ 5 in Mathematics

2007-09-15 05:03:00 · 7 answers · asked by Phoeng T 1 in Geography

Im kinda getting sick of all these people saying the moon landing was a hoax. please, disprove the landing in anyway, and i bet i can disprove your idiotic little theory.

dont you think that of the thousands of people that worked for NASA and were part of the moon landing would have said something. its not them, its only you idiots.

and do you think the soviets would play along, considering they had satelittes that were watching that launch, and you can bet that if they saw that it was faked they wouldve have let the whole world know.

so please, try to disprove the moon landing.

2007-09-15 05:01:48 · 2 answers · asked by Anonymous in Astronomy & Space