Science & Mathematics - 20 November 2007

What is the cell potential of the following cell at 25 degree C? Note Pt is a passive electrode.

Pt / H2 (0.67 atm), H1+ (0.032 M) // Hg2+ (0.58 M) / Hg

2007-11-20 05:26:47 · 1 answers · asked by Anonymous in Chemistry

What is the cell potential of the following cell at 25 degree C? Note Au is a passive electrode

Cu / Cu2+ (0.00850 M) // Cr3+ (0.230 M), Cr2O72- (0.0380), H1+ (1.00 M) / Au

2007-11-20 05:25:29 · 1 answers · asked by Anonymous in Chemistry

consider flipping an unfair coin. the probability of getting a head is 6/10. the probability of getting a tail is 4/10. determine how many times we need to flip the coin such that 50% are heads.
for example, how many times you need to flip the coin so that out of all total number of flips, you'll end up with half of them heads.

2007-11-20 05:25:03 · 2 answers · asked by Anonymous in Mathematics

Hi, i would like to know if refering to someone as a savant in a medical context is rude and if so what should be used instead.
I just dont want to offend anyone and have never come across the term being used for eg autistic people before.
Please answer ASAP

2007-11-20 05:24:48 · 2 answers · asked by Billy h 1 in Medicine

2007-11-20 05:22:57 · 1 answers · asked by Carol D 1 in Other - Science

If so, how would this affect their research?

If not, how do we KNOW they are not?

Love Jack

2007-11-20 05:21:53 · 5 answers · asked by Jack 5 in Biology

i guess i needed to rework this question...guess im not the only one with a personallity

2007-11-20 05:16:12 · 2 answers · asked by jay 1 in Engineering

2007-11-20 05:03:20 · 5 answers · asked by High Voltage 3 in Chemistry

I have a line of length 66 ft. on each side of the line there is a triangle. the triangle on top has twice the area of the triangle on the bottom. Both triangles are right triangles with slopes = -1576. how long are each triangle??? Oh, and the height of the top triangle minus the height of the little triangle = 104000

http://img221.imageshack.us/img221/9838/aaare3.png

2007-11-20 04:58:20 · 1 answers · asked by Anansi 2 in Physics

just think...

2007-11-20 04:57:51 · 3 answers · asked by Raj 2 in Physics

The work function of an element is the energy required to remove an electron from the surface of the solid element. The work function for lithium is 279.7 kJ/mol (that is, it takes 279.7 kJ of energy to remove one mole of electrons from one mole of Li atoms on the surface of Li metal). What is the maximum wavelength of light that can remove an electron from an atom on the surface of lithium metal?

2007-11-20 04:56:15 · 1 answers · asked by jotham4200 1 in Physics

induction motor

2007-11-20 04:51:53 · 1 answers · asked by Hari 1 in Engineering

when a salesperson makes a sale, a record is created that includes the date,time and dollar amount of the
salespeople:Edwards,Rogers,Krybek,Delaney,LaFleur,Smith,Black. The pseudocode has to list totalsales,totalcommissions earned by all salespeople for time frames bade on the hour of the day(00-05.06-12,13-18 and 19-23)
here is a tabel that migth help:
FILE DESCRIPTIO: DECIMALS: SALEAMOUNT: RATE:
salespersons num $0 to&50,000 .04
moth num $51,000to$200,000 .05
day num $126,000to$200,000 .06
year num $201,000and up 0.7
time num
saleamount num

2007-11-20 04:48:25 · 1 answers · asked by Robert C 1 in Mathematics

Savannah left Miami and drove at a speed of 47 mph. Timothy left 2 hours later, from the same point, and drove at a speed of 58 mph. How long will it take Timothy to catch up with Savannah?

8.55 hours
9 hours
6 hours
7.5 hours


I really don't understand how to do this thing.
Someone min helping and explaining?

2007-11-20 04:39:33 · 1 answers · asked by Keti 1 in Mathematics

2007-11-20 04:38:10 · 3 answers · asked by Anonymous in Geography

2007-11-20 04:33:06 · 5 answers · asked by ツ 1 in Medicine

like jurassic park or would you be against it?

2007-11-20 04:29:12 · 3 answers · asked by Shadow 4 in Biology

http://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Wooden_hourglass.jpg/277px-Wooden_hourglass.jpg

Is weight diminished by amount of sand in fall at any given moment of time?

2007-11-20 04:27:54 · 8 answers · asked by Alexander 6 in Physics

2007-11-20 04:26:17 · 13 answers · asked by SHOBHIT J 3 in Astronomy & Space

What Temperature Transducers are used for:-

•Engine Exhaust Gas Monitoring

•Engine Temperature at/near the Combustion Chamber

•Cabin Temperature

please give me full name.

i am so pissed-off, i can't find this information any where

help me out...Please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2007-11-20 04:21:27 · 1 answers · asked by Abdul-Hasib Matloob 2 in Engineering

I am a black , female math major. I'm the only math major I know who is not white or asian. Don't get me wrong I enjoy the company of my fellow white/asian math nerds (lol) but sometimes I wish I could find a math major or better yet a mathematician who looked like me (black &female). Is that wrong?






Ps.
I am in a mentoring program that is aimed at putting more minorities into the sciences but all the mentors are either white or asian.

2007-11-20 04:21:04 · 6 answers · asked by Calculus Nerd 1 in Other - Science

Let (X, M u) be a measure space, where X is a set, M is a sigma-algebra on X and u is a measure defined on M. Let f_n be a sequence of functions defined on X and with values on [0, oo] such that lim f_n = f. Suppose that lim Integral f_n du = Integral f du < oo (the integrals taken over X). Show that, for every set E of M, Integral_E f_n du = Integral_E f du, where Integral_E means integral over E. Also, show that this conclusion may fail if we have lim Integral f_n du = Integral f du = oo
Thank you for any help.

2007-11-20 04:18:16 · 1 answers · asked by Sandra 1 in Mathematics

2007-11-20 04:12:55 · 4 answers · asked by Ginger 2 in Mathematics

2007-11-20 04:11:44 · 2 answers · asked by damigurl05 1 in Other - Science

I'm curious to know if, theoretically, they could watch the events of September 11, 2001 (Earth Time) unfold before their eyes...

The assumptions I'm making are:

- There is a planet with life 7 light-years away from earth
- These life forms have the technology to see such a far distance with a telescope at such a fine resolution

2007-11-20 04:11:19 · 5 answers · asked by Razor 2 in Astronomy & Space

Hi, ive read that heroin is made from morphine which in turn is made by opiates. does this make morphine what some could call a 'legal heroin' or are the totally different (in terms of , effects, how easily you get addicted etc....)

2007-11-20 04:11:09 · 6 answers · asked by Anonymous in Medicine

but not like on this web page http://mathforum.org/library/drmath/view/67312.html
thx

2007-11-20 04:10:59 · 8 answers · asked by kzkei 2 in Mathematics

a) if left on the filter will the percent yield of the alum be reported too high or too low? Explain
b) if the Al pieces are detected on the filter what steps would be used to remedy the observation? Explain

thank you for any helo

2007-11-20 04:06:22 · 1 answers · asked by Anonymous in Chemistry

flutter all the time.TV footage showed the impossible situation
too

2007-11-20 04:06:21 · 28 answers · asked by FriendlyLionLeo 2 in Astronomy & Space

How do I do this? I have been stuck on this for days.

2007-11-20 04:04:42 · 1 answers · asked by Anonymous in Mathematics