Science & Mathematics - 19 August 2007

I'm also stuck on this problem........

The lowest temperature ever recorded in the state of Oregon was -54 F (in Seneca, on February 10, 1933). The state’s record high temperature occurred in Pendleton on August 10, 1898, when it reached 119 F. What is the historical temperature range in the state of Oregon?

2007-08-19 09:45:03 · 9 answers · asked by Anonymous in Mathematics

Is sour milk, produced by the addition of mild acid (lemon juice or vinegar), alive?

2007-08-19 09:44:21 · 4 answers · asked by Anonymous in Chemistry

I have no idea where to begin to solve this problem. It doesn't make sense to me. Can someone help me out?


Beach Channel High School’s football team scored one field goal (3 points) and gave up a touchdown (7 points) in the first quarter. In the third quarter, they scored another field goal and have up a safety (2 points). They gave up a final field goal in the fourth quarter. By how much did they lose?

2007-08-19 09:43:50 · 4 answers · asked by Anonymous in Mathematics

i have pondered this question for ages. if the electromagnetic wave creates vibrations in all planes (unpolarised light) its more than likely light radiation displaces particles, and isnt that the definition of sound?

2007-08-19 09:43:01 · 12 answers · asked by lukeh466 3 in Physics

2007-08-19 09:36:50 · 0 answers · asked by lcm 1 in Chemistry

http://news.yahoo.com/photo/070819/480/717918dd34294f7c909dc2235a1bac4d&g=events/sc/091905hurricanes;_ylt=AgRcCKQuemlYjovouw2oOQm9IxIF

why do pictures of the Earth look like that from space, somewhat upside down, it looks as though it could fall off. But when you are standing on Earth; land looks linear and flat with no curving.

2007-08-19 09:34:15 · 8 answers · asked by thekingisback 3 in Astronomy & Space

i want to do something with animals when i get out of school. (but not a vet)

would a Wildlife Rehabilitator get payed well? what would i have to take in college? what are some other things i could do with animals?

2007-08-19 09:33:45 · 12 answers · asked by Anonymous in Zoology

1.Sunrise
2.Sunset
3.Full Moon
4.Clear night sky filled with stars
5.Solar Eclipse/Lunar eclipse
6.Meteor shower.

2007-08-19 09:30:43 · 23 answers · asked by Alien 4 in Astronomy & Space

Please help me with the following:

1) What is the slope of line y=3/4x-1?

2) What is the y-intercept of line 2x+3y=6?

3) Find an equation of the line with slope -4/3 and y-intercept 3. Leave equation in slope intercept form.

4) Find an equation of the line that goes through the point (2,1) and has a slope of 4. Leave equation in point-slope form.

THANK YOU!!! I appreciate any help I can get.

2007-08-19 09:25:41 · 4 answers · asked by acetone33432 1 in Mathematics

the numbers are:

39, 40, 40, 43, 44, 45, 46, 47, 48, 52, 55

the first quartile is the median of the lower half, and the third quartile is the median of the upper half. How do I split 11 numbers into two even halves?

2007-08-19 09:20:38 · 3 answers · asked by Anonymous in Mathematics

The standard Gibbs free energy change for hydrolysis of fructose-1,6- bisphosphate (FBP) to fructose-6- phosphate (F-6-P) and pi is -16.7 kj/mol:

FBP + H20 -----------> F-6-P + Pi

The standard Gibbs free energy change for ATP hydrolysis is -30.5 kj/mol:

ATP + H2O -----------> ADP + Pi

The standard Gibbs free energy change for the phosphofructokinase reaction shown below, is which of the following.
ATP + F-6-P-------------->ADP + FBP

(a) -47.2 kj/mol
(b) +13.8 kj/mol
(c) -13.8 kj/mol
(d) none of the above

Does anyone which is the correct answer?
Thankyou,xx

2007-08-19 09:20:16 · 1 answers · asked by Anonymous in Chemistry

2007-08-19 09:16:32 · 24 answers · asked by Suresh K 1 in Mathematics

please show all steps to solve the identity

2007-08-19 09:16:16 · 5 answers · asked by sahun d 1 in Mathematics

...peeling back the layers of God's onion will make you cry for eternity...Repent, now, while you still can...and your date will not appreciate your scientific "onion" breath...

God commands you all hence to stop putting Mentos inside Dr. Pepper bottles, stop coming up with new and funky condom plastics, and...

Go to a "scientology" church if you must...but go to church...it's only once a week, and you can do your "science" homework during the incredibly long and boring sermon you've all heard many times before...God is taking Roll Call...don't be tardy...

2007-08-19 09:14:14 · 3 answers · asked by Anonymous in Other - Science

1. Will MnO4- oxidize Cr+3 to Cr2O7 in acidic solution? Explain your answer.

Reduction Potentials E°
Mn+2 + 2e-  Mn(s) -1.18
Cr+2 + 2e-  Cr(s) -0.91
Cr+3 + e-  Cr+2 -0.41
MnO2 + 4H+ + 2e-  Mn+2 + 2H2O 1.23
Cr2O7-2 + 14H+ + 6e-  2Cr+3 + 7H2O 1.33
MnO4- + 8H+ + 5e-  Mn+2 + 4H2O 1.51

2. Calculate the number of moles of CuBr which will dissolve in 0.010M HBr.
Ksp for CuBr is 5.3x10-9.

If someone could help me out it would be great. I've been at these for a while and I can't seem to get the correct answer that I have in my book.

2007-08-19 09:11:14 · 4 answers · asked by Sarah G 1 in Chemistry

Newton verified by Einstein propossed all forces are equal and opposite

2007-08-19 09:03:49 · 10 answers · asked by Thor 2 in Physics

The numbers are 1, 2, 3, 4, 5. Rule: The second and third numbers are odd numbers. The last two numbers must equal=(6). And therefore, what is the first number?

2007-08-19 09:01:54 · 7 answers · asked by little mickey 1 in Mathematics

Explain the conditions under which a quadratic equation can be solved using simple rerrangement, versus the quadratic formula. Is there a way to decide, from the structure of the equation being solved, when each approach is appropriate?

2007-08-19 08:59:22 · 5 answers · asked by penn_state21 1 in Mathematics

AHHH! HELP! PLEASE!

What will be displayed by the formula =ROUND (C2,0) if the number 21.2534 is stored in C2?

A- 22
B- =Round (C2,0)
C- 21
D- 21.25

2007-08-19 08:56:56 · 3 answers · asked by funkymonkey5142@sbcglobal.net 1 in Mathematics

Near point of a person suffering from hypermetropia is 60 cm from his eye. What is the nature and power of the lens needed to correct this defect?

Please specify what would be the object distance and image distance and focal length and why???
Please solve the numerical in details with each and every step along with explanation.

Thanks...

P.S. The formula for lens is 1/v-1/u=1/f
here v= image distance
u=object distance
f=focal length
Power, P = 1/f

2007-08-19 08:56:39 · 1 answers · asked by Siddhartha 1 in Physics

A car with an acceleration of 6m/s^2 exits the pit going 24m/s just as a car going 70m/s reaches the same location. If the car maintains it's acceleration, how long will it take to catch up with the other car?


Two men on horseback, 88 meters apart, accelerate toward each other. One going 0.2m/s^2 the other going 0.3m/s^2. Relative to the fastests man's starting point, when do they collide?

2007-08-19 08:54:44 · 3 answers · asked by dragonarigirl 1 in Physics

2007-08-19 08:52:19 · 24 answers · asked by Evil Genius 3 in Mathematics

I want to do something that's not common and that would surely be interesting and get me a good grade. Like i dont want to do something everyone else is doing like "which fertilizer makes plants grow the best". I want something unique.

2007-08-19 08:49:11 · 3 answers · asked by keeprofdagoal 1 in Other - Science

2007-08-19 08:46:48 · 4 answers · asked by number_five_help 1 in Astronomy & Space

2007-08-19 08:46:36 · 3 answers · asked by number_five_help 1 in Astronomy & Space

1. (radical 20 over five) minus (one over radical 5)

2. (radical75a^2 over radical 5)

2007-08-19 08:46:32 · 2 answers · asked by Anonymous in Mathematics

2007-08-19 08:46:29 · 2 answers · asked by CelticMoonGoddess 2 in Mathematics

Exactly as per question

2007-08-19 08:43:24 · 9 answers · asked by Anonymous in Astronomy & Space

Supposedly these mines being serviced by the ice road are billion dollar operations. What prevents them from building some airstrips up there and flying supplies in? Seems like it'd be easier and a hell of a lot more convenient so there must be a good reason.

2007-08-19 08:42:28 · 4 answers · asked by manitoadlet 1 in Engineering

2007-08-19 08:41:41 · 4 answers · asked by Anonymous in Astronomy & Space