Science & Mathematics - 5 July 2007

An orbital has many shapes like spherical,dumbbell etc.But,on what basis is the shape determined?

2007-07-05 06:21:24 · 4 answers · asked by Anonymous in Physics

2007-07-05 06:15:58 · 5 answers · asked by Anonymous in Mathematics

The same..

If not, which is more deadly.?

2007-07-05 06:13:55 · 2 answers · asked by Anonymous in Zoology

thank you for the homework help!

2007-07-05 06:04:52 · 4 answers · asked by kellnugent 1 in Mathematics

I did that in maths and i am trying to find out the 110 solutions to 4=33 can anyone help me please?

2007-07-05 06:04:23 · 1 answers · asked by Anonymous in Mathematics

2007-07-05 06:00:57 · 9 answers · asked by robohula 1 in Other - Alternative

Wein's displacement law says the peak wavelength is:
2900/5600 = 0.518 um = 518 nm (this is very green, see the table below)

I'm not convinced that it's due to atmospheric Rayleigh scattering, because the astronauts don't see a green sun do they?

I suppose it must be that sunlight has more red and orange than blue and violet, etc., so our eyes interpret this as yellow.

So if the "cones" in our eyes are essentially R-G-B, then, if G is stimulated, but R is more stimulated than B, does this appear yellow?

thanks.

color, wavelength interval
---------------------------------
red ~ 630–700 nm
orange ~ 590–630 nm
yellow ~ 560–590 nm
green ~ 490–560 nm
blue ~ 450–490 nm
violet ~ 400–450 nm

2007-07-05 05:59:53 · 7 answers · asked by Anonymous in Physics

use vertical format to multiply: (6x+1)(2x^2-3x+2)

2007-07-05 05:58:02 · 2 answers · asked by Anonymous in Mathematics

2007-07-05 05:55:32 · 11 answers · asked by azcompwhiz 2 in Mathematics

i need help matching the equations with the correspoding vertical asymptotes

1.)1/x
2.)x/x^2-4
3.)5/x^2
the problem is i need help trying to figure out how to do it thank you i greatly appreciate your help!

2007-07-05 05:55:08 · 5 answers · asked by skate_freely 1 in Mathematics

2007-07-05 05:51:43 · 17 answers · asked by miss oxon 3 in Weather

In power plants, how does this happen?

2007-07-05 05:51:01 · 4 answers · asked by Anonymous in Chemistry

2007-07-05 05:49:39 · 3 answers · asked by Anonymous in Other - Science

A__of a whole number is another whole number that will divide exactly into that number. This means that the division will have a remainder of 0.
IS it
composite,
prime
or factor

2007-07-05 05:48:48 · 8 answers · asked by Anonymous in Mathematics

2007-07-05 05:47:49 · 3 answers · asked by Ethelyn 1 in Chemistry

2007-07-05 05:47:20 · 8 answers · asked by Robert C 1 in Mathematics

2007-07-05 05:47:17 · 3 answers · asked by Anonymous in Mathematics

2007-07-05 05:47:06 · 4 answers · asked by Anonymous in Earth Sciences & Geology

does methanol, ethanol, propanol, butanol and hexanol each have?

2007-07-05 05:45:52 · 3 answers · asked by Anonymous in Chemistry

Like acircle can be drawn using a compass, how can I draw an ellipse on paper? I am familiar with general mathematical terms and trigonometry, if the method can be explained using them.

2007-07-05 05:42:22 · 5 answers · asked by Autumn Dew 1 in Mathematics

Science doubt?
my sci fair proj. is
THE EFFECT OF DIFFERENT SOLUTES ON THE TEMPERATURE OF BOILING WATER.
the solutes i have used are :
sugar
salt
rock salt
baking soda
vinegar
eno
citric acid
and
disprin (the tablet)

the variation in the boiling pt is about 94 degrees C - 107 degrees celsius.


there is no drastic change
is that fine
is this project good
are my results valid ?
I AM CONFUSED!
+ i dont have the time to do it all over again or recheck my findings............
i was quite confident untill my frnd told me that THERE ISNT MUCH CHANGE AND THERE SHOULD BE A RISE NOT A FALL..............



I"M CONFUSED

2007-07-05 05:39:12 · 7 answers · asked by Anonymous in Chemistry

2007-07-05 05:38:29 · 18 answers · asked by Malcolm M 1 in Geography

I am trying to determine my calorie needs for a day...here is a formula could you figure it out for me??
BMR means basal metabolic rate.
I am 37 years old, 5 foot 7 and weight 190 pounds.
Women: BMR = 655 + (9.6 X wt in kg) + (1.8 X ht in cm) - (4.7 X age in years)

Note: 1 inch = 2.54 cm.
1 kilogram = 2.2 lbs.

Thanks!!

2007-07-05 05:37:47 · 10 answers · asked by Anonymous in Mathematics

I have to write 2 sequences of numbers that both start out with the same first 4 numbers but they have to have different continuing numbers can someone do this please

2007-07-05 05:37:07 · 9 answers · asked by toty467 2 in Mathematics

DETAILS
In a certain city, buses run every 30 minutes on average. At a particular station, buses are scheduled to arrive at 08:00, 08:30, etc. However, because of unpredictable traffic conditions, the actual arrival times are normally distributed about the scheduled arrival times with a standard deviation of 5 minutes. i.e. bus arrival times are N(08:00, 5^2), N(08:30, 5^2), etc.

INTERMEDIATE QUESTION
A passenger, trying to catch the bus, shows up at the station at exactly 08:00. What is his expected waiting time?

HARDER QUESTION
Suppose he shows up at 07:57 (3 minutes before the scheduled arrival time). What is now his expected waiting time?

CHALLENGE QUESTION
At what time must he show up in order to minimize his waiting time?
What would be the worst time to show up (which maximizes his waiting time)?

2007-07-05 05:36:45 · 3 answers · asked by Dr D 7 in Mathematics

2007-07-05 05:32:08 · 1 answers · asked by UMESH D 1 in Physics

so I have -x^2 +1 / x^2 - 5x + 6

how would I do this in long division, what's are the steps, answer, please help explain, thanks

2007-07-05 05:30:43 · 4 answers · asked by Anonymous in Mathematics

how the heck do I do this in long division, please help explain thanks:

x(x-4)^2 / (x-1)(x+2)(x-3)

2007-07-05 05:29:23 · 2 answers · asked by Anonymous in Mathematics

my sci fair proj. is
THE EFFECT OF DIFFERENT SOLUTES ON THE TEMPERATURE OF BOILING WATER.
the solutes i have used are :
sugar
salt
rock salt
baking soda
vinegar
eno
citric acid
and
disprin (the tablet)

the variation in the boiling pt is about 94 degrees C - 107 degrees celsius.


there is no drastic change
is that fine
is this project good
are my results valid ?
I AM CONFUSED!

2007-07-05 05:28:55 · 5 answers · asked by Anonymous in Chemistry

I'd really like to know what the method is if they do it without the person present, and is it accurate? Thanks.

2007-07-05 05:27:22 · 17 answers · asked by Maria 1 in Parapsychology