Science & Mathematics - 3 December 2006

2006-12-03 09:22:45 · 13 answers · asked by Nicole S 1 in Mathematics

2006-12-03 09:21:14 · 8 answers · asked by Nicole S 1 in Mathematics

if we have 40, six-hundred pound men, streaking at 47 miles per hour, how long will it take these large men to streak 32 miles if they stop for 2 minutes at a hot dog stand and eat 400 frankfurters???

2006-12-03 09:21:12 · 6 answers · asked by bigschwinger 2 in Physics

a car is traveling 22mi/hr and speeds up to 50mi/hr in 6 sec. what is the acceleration? i dont need the answer i would just like a formula. if you have any ideas or clues that would really help. thank you!

2006-12-03 09:20:51 · 4 answers · asked by Anonymous in Physics

so i need help with integers meaning adding subtracting and multiplying them in problems similar to these-
3-(-2)+(-7)*(-2)-(-3)-2 = 20
thanks
<3

2006-12-03 09:19:24 · 4 answers · asked by ellion 2 in Mathematics

Please type out both of the structural formulas for me. Thanks.

2006-12-03 09:19:18 · 1 answers · asked by emma s 1 in Chemistry

please tell me ASAP...

2006-12-03 09:18:19 · 4 answers · asked by Anonymous in Zoology

2006-12-03 09:16:19 · 5 answers · asked by Nicole S 1 in Mathematics

2006-12-03 09:15:59 · 13 answers · asked by Anonymous in Astronomy & Space

2006-12-03 09:15:05 · 8 answers · asked by ROBERT L 1 in Geography

I'm asking how, exactly, does dilution affect the pH of a buffer solution, to be more precise, NH3/NH4Cl. In theory, the quotient between the concentration of NH3 and NH4 should remain a constant, therefore making the pOH equal to pKb plus log([NH3]/[NH4+]). But this isn't true in practice, why?

2006-12-03 09:14:35 · 2 answers · asked by jose_juan_prieto 1 in Chemistry

Please show some work!!!Thanks

2006-12-03 09:13:57 · 4 answers · asked by joe123chem 1 in Mathematics

Please show some steps thanks.

2006-12-03 09:12:50 · 5 answers · asked by joe123chem 1 in Mathematics

is it true that most of the stars that we see no longer exist? what we are actually seeing are dead stars but due to them being so far away we are still seeing the light.

2006-12-03 09:12:30 · 10 answers · asked by dobbie 1 in Astronomy & Space

What effect does carbon dioxide have on a half full test tube of phenolphthalein and WHY?

2006-12-03 09:11:53 · 2 answers · asked by Anonymous in Chemistry

will we be able to see anything ? or should be go for a higher strength lense?

2006-12-03 09:11:27 · 4 answers · asked by oleandertea 2 in Astronomy & Space

2006-12-03 09:10:52 · 4 answers · asked by curiosity killed the cat 1 in Geography

2006-12-03 09:10:21 · 3 answers · asked by dioreaddiction 1 in Biology

If we want to exlpore space properly we need to travel the speed of light or faster? Will this ever be possible? Is it anything to do with working out nuclear fusion ?

2006-12-03 09:06:28 · 12 answers · asked by Anonymous in Astronomy & Space

See this,
http://www.geocities.com/black_rx20022002/math_problem.JPG
Solve by using double-angle, half-angle formulas, whatever.

*Don't know how to input the square thingy, so i made it as a picture.. pretty silly...

Anyway, please do not skip any steps please.
Appreciated.

2006-12-03 09:05:48 · 6 answers · asked by black_rx20022002 2 in Mathematics

By reflecting the sun's light could you light a fire?

2006-12-03 09:05:42 · 9 answers · asked by exp4ndtim3 1 in Earth Sciences & Geology

please tell me now!! I beg you... ASAP

2006-12-03 09:04:28 · 2 answers · asked by Anonymous in Zoology

Can u help me with this maths problem. It's about using differentiation

2006-12-03 09:02:53 · 2 answers · asked by Anonymous in Mathematics

please tell me now... ASAP

2006-12-03 09:02:48 · 3 answers · asked by Anonymous in Zoology

heres the question
1quart/1min=_gal/1week

i need to find out how many gallons that are produced in one week.

thanks for your help.

2006-12-03 09:02:42 · 6 answers · asked by jopuppy 5 in Other - Science

2006-12-03 09:01:45 · 3 answers · asked by shishu45 2 in Chemistry

heres the question
1quart/1min=_gal/1week

i need to find out how many gallons that are produced in one week.

thanks for your help.

2006-12-03 09:01:22 · 9 answers · asked by jopuppy 5 in Mathematics

The integral (with upper limit 2 and lower limit 1) of x * sqrt(x-1) dx.
Please show your work. Thank you for your help.

2006-12-03 09:01:18 · 3 answers · asked by ANON 1 in Mathematics

A student weights an empty flast and stopper and finds the mass 2 be 54.868g. She then adds about 5mL of an unkown liquid and heats the flask in a boiling water bath at 100 degrees C. After all the liqiud is vaporized, she then removes the falst from the bath, and lets it cool . After it is cool she momentarily removes the stopper, then replaces it and weighs the falsk and condesned vapor, obtaining a mass of 55.802g. The volume is known to be 242.mL. The baramoetic pressure in the lab that day is 747mm Hg.

What is the pressure of the vapor in the flask in atm?

What was the mass of vapor that was present in the flask?

2006-12-03 09:00:42 · 2 answers · asked by Lucid_dreams 4 in Chemistry

2006-12-03 09:00:18 · 3 answers · asked by Anonymous in Engineering