Science & Mathematics - 12 December 2006

physical science

2006-12-12 14:45:17 · 2 answers · asked by Anonymous in Other - Science

2006-12-12 14:45:11 · 3 answers · asked by Anonymous in Medicine

2006-12-12 14:44:31 · 3 answers · asked by ? 3 in Biology

does the frequency you hear increase, decrease, or stay the same?
does the wavelength increase, decrease, or stay the same?
does the speed of sound in the air between you and the locomotive increase, decrease, or stay the same?

2006-12-12 14:43:51 · 2 answers · asked by Mai N 1 in Physics

If water gives off heat energy when changing states from a liquid to a solid due to latent heat how does it manage to ever freeze. We are talking about the same type of heat energy that drives hurricanes so this is no small amount of heat ?

2006-12-12 14:43:36 · 4 answers · asked by firedon1000 2 in Earth Sciences & Geology

Find the volume of the solid that results when the region enclosed by the given curves is revolved about the x-axis.

y = 7sqrt(cosx), x=pi/4, x=pi/2, y=0

give answer in exact form.
Thanks!! =D

2006-12-12 14:42:06 · 5 answers · asked by thesekeys 3 in Mathematics

I am going to add what i am guessing. Can you please let me know if they are wrong

C2H6 ethane?

CH3-CH2-CH2OH 1-propanol?

CH3-CH2-CH2-CH2-CH3 pentane?

2006-12-12 14:40:40 · 4 answers · asked by Anonymous in Chemistry

Of course a first response is "no of course it can still happen even if it's chance is zero" And I know I'm adding emotion to science, But do you think that statement is true? I'm basically asking the converse of "if possibility is 0% than probability is 0"

Think of this stiuation, If i'm walking on the street, and I see some dog poopoo mixed with uranium, there is 0% chance no matter what that I will eat it, so therefore is it impossible for the event of me eating it to occur? I say it is impossible because the event will never happen, and it is impossible to prove it's possibility, so therefore it's impossible right?

2006-12-12 14:40:22 · 5 answers · asked by adklsjfklsdj 6 in Physics

does it run faster, slower or the same. explain

2006-12-12 14:40:14 · 2 answers · asked by Mai N 1 in Astronomy & Space

it could happen you know

2006-12-12 14:39:43 · 21 answers · asked by pretzelman5000 2 in Astronomy & Space

2006-12-12 14:38:08 · 5 answers · asked by Garett B 2 in Mathematics

please answer asap my hw is due tomorrow

2006-12-12 14:37:51 · 9 answers · asked by =D 2 in Chemistry

2006-12-12 14:37:41 · 5 answers · asked by eva 1 in Chemistry

is it inconsistent to say that molecules are in perpetual motion? explain.

2006-12-12 14:37:03 · 4 answers · asked by mai n 1 in Physics

1. How is a rocket similar to a balloon?
2. Explain Newton's first law. Why are you never sitting still?
3. How is Newton's first law related to rocket flight?
4. Explain how Newton's third law (action-reaction) causes a rocket to lift off.
5. Why do rockets actually work better in outer space than in our atmosphere (remember, there is no matter and thus no air in space)?

2006-12-12 14:37:01 · 3 answers · asked by Augustblue 1 in Astronomy & Space

2006-12-12 14:35:54 · 2 answers · asked by genalolabridgida 3 in Chemistry

Can someone tutor me about almost every day?
Like you???????
You can just email me.
There are math problems that have things like a 1 on the top of a line and at the bottom of a line there is 6.
Then to the right there is a 9 on the top of a line and at the bottom of the line there is a 16.
And in the middle of both of those problems there is a x sign.
Somebody help me.
Im a bit slow you know.
I got left back.
Dont ask how many times.
Some body just help me

2006-12-12 14:35:35 · 11 answers · asked by Anonymous in Mathematics

The health of employees is monitored periodically by weighing them. A sample of 54 employees has a mean weight of 183.9 lbs. Assume (alpha) is known to be 121.2 lbs. use a .10 significance level to test the claim that the population mean of all such employees weights is less than 200 lbs.
Hypothesis H0 H1 :
Test Stat;
p value
Conclusion about H0

An article reports: 34% of American fathers take no responsibility for child care. A researcher claims that figure is higher for fathers in “Littlestown“ A random sample of 234 fathers from Littletown yielded 96 who did not help with childcare. Test the researcher’s claim at the 0.05 significance level.
Hypothesis H0,H1:
Test statistic:
Critical valve:
Conclusion about H0 :


In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. Test the claim that the proportion of women favoring stricter gun control. Use a significance level of 0.05
Hypothesis H0,H1:
Test statistic:
Critical valve:
Conclusion about H0 :

2006-12-12 14:34:37 · 2 answers · asked by cozdabuch 2 in Mathematics

2006-12-12 14:33:26 · 18 answers · asked by chelsea0304@sbcglobal.net 1 in Mathematics

of mountains than down below. but the opposite is often the case. why?

2006-12-12 14:33:07 · 3 answers · asked by mai n 1 in Physics

2006-12-12 14:32:58 · 4 answers · asked by the walrus 1 in Astronomy & Space

2006-12-12 14:31:43 · 5 answers · asked by mai n 1 in Physics

I need to convert 4.4444444444444444444444444444...

2006-12-12 14:31:26 · 8 answers · asked by monkeymanx8 1 in Mathematics

Find the volume of the solid whose base is the region bounded between the curve y = x^2 and x-axis from x=0 to x=3 and whose cross sections taken perpendicular to the x-axis are squares. (Do not round your answer.)

Thanks for the help! Always appreciated.

2006-12-12 14:31:19 · 2 answers · asked by thesekeys 3 in Mathematics

2006-12-12 14:30:12 · 8 answers · asked by Discovering 2 in Mathematics

2006-12-12 14:30:04 · 6 answers · asked by genalolabridgida 3 in Chemistry

The real color of gold is gold. right?

2006-12-12 14:29:54 · 5 answers · asked by ☆★♪♫Caitlin♫♪★☆ 2 in Earth Sciences & Geology

Looking for the name of a group of stars that is directly overhead at about 10-12 pm central time(texas) that looks similiar to a dipper but is only the size of a finger tip (tiny) at arms lengthed. Appreciate any response, trying to formulate a christmas present!

2006-12-12 14:28:29 · 2 answers · asked by Michael M 1 in Astronomy & Space

1. egg 2. vanilla extract 3. unsweeten cocoa powder 4. unsalted butter 5. egg 6. vanilla 7. unsalted butter 8. vegetable shortening 9. light brown sugar 10. old fashion oat 11. shredded sweeten coconut

2006-12-12 14:28:19 · 6 answers · asked by Anonymous in Chemistry

Simple question

2006-12-12 14:28:09 · 13 answers · asked by Anonymous in Earth Sciences & Geology