Science & Mathematics - 27 October 2007

I bumped into these words during a reading for my biology class, and I don't know what it is and does. I have been searching on the Internet, but it did not give me a complete and clear answer...Any help? Thxs!

2007-10-27 11:08:49 · 1 answers · asked by Aname M 1 in Biology

the x is a superscript to the 4 and the 2 is a superscript to the x =
2 with a x superscript,
thanks if you can help me.

2007-10-27 11:08:28 · 4 answers · asked by Boo Radley 4 in Mathematics

2007-10-27 11:08:18 · 9 answers · asked by dptvegas 3 in Earth Sciences & Geology

The answers to choose from: haploid, diploid, 2n, n and 4n

In meiosis the chromosome number of the parent cell is *?* which is the *?* number, and the chromosomes number of each of the daughter cells is *?*.

In mitosis the chromosome number of the parent cell is *?* and the daughter cells are each *?*, which is the *?* number of chromosomes.

2007-10-27 11:03:08 · 1 answers · asked by Christopher M 1 in Biology

I'm doing a school project on Caddis flies and i'm having trouble finding info. I need to know the kindom- species names. habitat, food, behavior and how the caddis flies interact with humans.

2007-10-27 10:59:18 · 1 answers · asked by silver08 2 in Zoology

i need major help. heres the question...

Flying east between 2 cities, a plane speed is 380 miles/hr. On the return trip it flies at 420 miles/hr. Find the average speed for the round trip.

This is the problem. I know the answers not 400.

Can someone plz help me. And if its not too much, explain how u got ur answer. Thanks.

2007-10-27 10:58:19 · 4 answers · asked by qwertx722 2 in Mathematics

For example:
the order of 5+<4> in the factor group Z(sub 12)/<4>
or (2,1)+<(1,1)> in (Z(sub3)xZ(sub6))/<(1,1)>

2007-10-27 10:51:26 · 3 answers · asked by Anonymous in Mathematics

2007-10-27 10:50:35 · 4 answers · asked by Anonymous in Astronomy & Space

I need help with my science fair project. my project is
'does your pulse rate increase after riding in a car?'
If you can help, i'd appreciate it very much.

2007-10-27 10:46:37 · 2 answers · asked by Gilbert L 1 in Other - Science

Cymbalta, specifically.

I want to celebrate finishing a midterm - and the change of seasons....by sitting in the sauna for an hour....
Just wondering if it would be ok

2007-10-27 10:42:51 · 2 answers · asked by freshbliss 6 in Medicine

does anybody know who discovered water pollution????????????????????

2007-10-27 10:41:31 · 2 answers · asked by Zixiang Zhang 2 in Earth Sciences & Geology

My husband has high levels of lead and his company only tests through the blood. Lead doesn't stay in the blood so that is not an accurate test. It only shows what you are recently exposed to. After 20 years of being exposed to lead, he now has Parkinson's and we had his lead levels tested in other ways beside the blood. We used a urine test and a Hair test. His lead levels are off the chart.

2007-10-27 10:39:15 · 3 answers · asked by 7 W 1 in Medicine

1. What percent of 65 is 40?
2. What number is 8% of 250?
3. What is 120% of 50?
4. What percent of 50 is 112?

Thank you in advance. (:

2007-10-27 10:39:13 · 7 answers · asked by Brooke 2 in Mathematics

This question has bugged me for awhile. Find area inside the loop of the following limacon r= 5-10sin(theta). Please do not come up with 222.031538. I try and it's not correct. Anyone?

2007-10-27 10:37:30 · 1 answers · asked by V for V 2 in Mathematics

2007-10-27 10:37:30 · 3 answers · asked by Richard 3 in Biology

Can someone PLEASE give me, Step-by-step instructions on multiplying fractions?

1/5 x 20/1

I can't do it =(


AND/OR


How to convert a mixed numeral into an improper fraction?

Step-by-step please =)

8 3/7


Oh and please tell me which is which so I don't get confused. Thanks

2007-10-27 10:37:26 · 13 answers · asked by Anonymous in Mathematics

When I go green I really lose weight, so why is it that cows do fatten up instead? I really do not understand how a cow could possibly be so big and bulky when they only feet on pasture. Some of you will surely think I am not for real, but I am not joking: I am asking because I really do not know the answer. Does anybody want to help?

2007-10-27 10:37:18 · 8 answers · asked by george 3 in Zoology

Can it be that Mt. Washington NH has the worst weather in the world? How is this decided? Anyone?

2007-10-27 10:34:28 · 3 answers · asked by ssgjwyf 4 in Weather

f(x) = square root of [(8x^2 +1)/ (9-5x^2)]


I am so confused and I have a test on monday please help..

2007-10-27 10:32:55 · 2 answers · asked by Slava T 1 in Mathematics

If an 80 mg. dose of a drug were administered to a patient, and the drug has a half life of 2 hours, how many milligrams remain in the body at the end of 3 hours? With time in hours on the x axis and dose in mg on the y axis, plot six half-lives of the dose-response curve for the drug.

2007-10-27 10:32:30 · 1 answers · asked by Wilma 1 in Medicine

What is the weight of a column of water 7 ft high with a radius of 1.1m?
The density of the water is 1000 kg/m/m/m
Answer in units of N.


Volume = pi * r^2 * h
7 ft = 2.1336 m
Weight = Volume * Density


Volume = 3.14 * 1.1^2 * 2.1336 = 8.1064 m^3
Weight = 8.1064 m^3 * 1000 kg/m^3
Weight = 8106.39984 kg
1 Newton = kg * m/s2

i'm stuck here

2007-10-27 10:30:21 · 4 answers · asked by XzoeyX 2 in Mathematics

What would be an easy way to count the number of cardiac cycles in the given period of time on a strip of an EKG (e.g. lead II).....

2007-10-27 10:29:37 · 4 answers · asked by Young_city 1 in Medicine

What do you think? I heard the poles are switching places and in 2012 navigation systems for plains and the ones that animals have are going to be messed up, and the power is gonna go out and just scary doomsday stuff. Is this gonna happen? Why would it or why not? do you think the pole thing is going to happen too?
TELL ME YOUR THOUGHTS!

2007-10-27 10:29:10 · 4 answers · asked by Anonymous in Earth Sciences & Geology

Yes, I'm not a chemist... but I do like chemistry. I'd like it even more if it wasn't so intricate with so many unnecessary distinctions to make between stuff! But anyway, I'm doing a chemical reactions unit and it's not THAT bad, there's single displacement, double displacement, synthesis and decomposition... I just got lost when we brought in combustion and sorta got neutralization. I have some chem. problems here, can anyone explain them to me? I know the rxns but I just don't get combustion and whether they're aqeuous or not. Here:
1.) Acetic Acid + Sodium bicarbonate (baking soda) = ?
2.) Copper wire in flame makes...?
3.) Mg + lead II nitrate makes...?
4.) hydrochloric acid + sodium hydroxide= ?
5.) lead II nitrate + potassium iodide=?
6.) copper II sulfate + iron=?
7.) copper II sulfate pentahydroxide in flame makes...?!

Is hydrogen aqueous? Is iron? Is Mg? And when is it a gas or liquid? Can you balance the eqns. too plz?

Thanx for your help!

2007-10-27 10:27:27 · 3 answers · asked by mikita_daita 1 in Chemistry

A racecar traveling at 44 m/s is uniformally accelarated to a velocity of 22 m/s over and 11 second interval. What is the displacement during this time?

Steps please.

2007-10-27 10:24:04 · 2 answers · asked by kickitup21 1 in Physics

Find dy/dx if:
y = (sec^2)(sqrtsin2x)

^2 : squared
sqrt: square root

2007-10-27 10:23:45 · 2 answers · asked by hllhnk 1 in Mathematics

I was just wondering, what phylums are flowering plants. Wikipedia says it is Magnoliophyta, but my biology teacher says that it is wrong.
All answers must be reasonable and come from a reliable source(wiki doesn't count), and if you are a biologist, goodie.

2007-10-27 10:21:14 · 2 answers · asked by untitled.jpg 2 in Biology

2007-10-27 10:16:21 · 4 answers · asked by Anonymous in Weather

Hey its raining right now and I am really bored... so sometimes when I am bored I like to do math problems. So here is one for everyone. Wanring this math problem is very easy! If a show starts at 7:20 and lasts 1:40 mintues what time will it be over at? Lol.

2007-10-27 10:15:18 · 6 answers · asked by Anonymous in Mathematics

Okay so i have a science project. It is to do an experiment to show if " the more particles dissolved in the water, the higher the boiling point." is true or not. My question is how do i know WHEN to take the temperature of the water. If it when theres any sign of bubbles?

Thanks. ;]

2007-10-27 10:14:48 · 2 answers · asked by Anonymous in Chemistry