Science & Mathematics - 29 January 2007

What's an easy way to release static electricity build-up in your body without "shocking" yourself? It seems that whatever I touch when I'm charged, I tend to shock myself in the process.

2007-01-29 07:09:35 · 9 answers · asked by da_maestro 2 in Other - Science

An airplane is flying horizontally at 200 m/s, and it drops a care package to some people on the ground below. If the package takes 5 seconds to hit the ground, how high above the ground is the plane flying? Also what is the speed of the package when it hits the ground?

2007-01-29 07:07:26 · 5 answers · asked by GSU 1 in Physics

2007-01-29 07:05:52 · 13 answers · asked by sfumato1002 3 in Astronomy & Space

oook so..

- If CO2 amd H2O are formed when compound 'x' is burned, which two elements must be present in 'x'?

andd

- Some coals and oils contain sulphur impurities. Which harmful gas is formed when these fuels are burned?

Pleasee help guys, would be much appreciated x x x

2007-01-29 07:05:27 · 13 answers · asked by Anonymous in Chemistry

If car A is traveling at 50 km/hr at an angle of 10 degrees east of north and car B is traveling at 70 km/hr at an angle of 30 degrees south of east, what is the velocity of car A at seen by car B?

2007-01-29 07:04:23 · 1 answers · asked by GSU 1 in Physics

Would rapid acceleration cause discomfort in space?

2007-01-29 07:03:55 · 3 answers · asked by Anonymous in Astronomy & Space

If Evil Kneival drives his motorcycle up a ramp (inclined 30 degrees above the horizotal) and sails over 10 buses (spanning 36 meters) and lands on a similar ramp, what was his speed at the top of the ramp (either one)?

2007-01-29 07:03:30 · 1 answers · asked by GSU 1 in Physics

And also as x approaches zero along the domain of the above function. Thanks in advance!

2007-01-29 07:03:10 · 1 answers · asked by toyallhi 2 in Mathematics

2007-01-29 07:03:06 · 2 answers · asked by ardy-boy 2 in Chemistry

What is a diamond classified as and what makes a gemstone a gemstone?

2007-01-29 07:02:57 · 6 answers · asked by gidget 2 in Earth Sciences & Geology

I go out for a walk. I first walk 1km north, then I walk 2 km west. Then I walk northwest ( an angle exactly between north and west) for 2 km. What is my displacement (magnitude and direction (direction means find the angle))? If I did this walk in 2 hours, what is my average velocity (magnitude) in meters per second?

2007-01-29 07:01:19 · 2 answers · asked by GSU 1 in Physics

how do I find the derivative of f(x) = (tanx)/(1+x^2)

2007-01-29 06:59:45 · 5 answers · asked by changchih 7 in Mathematics

Preparing for a statistics final. Can you answer the below question? Please give as much detail as possible.

The dean of a large and well-respected school of business is interested in evaluating the starting salaries being offered to its current MBA graduating class. Suppose the dean wishes to examine the effect of major concentration and gender on starting salary. Of the 24 graduating students in the study, there are three within each gender and major combination. The salary packages offered are as follows:

Salary Package (in thousands of dollars)

Accounting-Finance-Mangmt-Marketing
Male
89.3-100.2-82.1-85.2
98.9-93.0-74.4-68.3
100.4-106.5-84.3- 69.2
Female
87.8-81.6-67.8-81.9
81.7-91.7-72.2-77.1
83.1-75.4-64.7-75.3
What should the dean conclude?

Remember, I'm looking for the statisitcs answer, not the simple logical answer.

2007-01-29 06:57:39 · 4 answers · asked by Colique 2 in Mathematics

Let's make the assumption that time travel will be possible, for the moment. When it is, why hasn't anyone gone back in time to do something as little as asking someone out to something as big as stopping World War II? This world could be a better place if time travel is used for good. Even so, its use in the future causes us to think if the people around us could be from the future.
Also, time travel could take away from the value of decision-making and gives us a "second way out." What's your take on this?

2007-01-29 06:57:17 · 11 answers · asked by soccergamer92 1 in Physics

2007-01-29 06:56:13 · 6 answers · asked by jack r 2 in Geography

1. 72rs^5 : 12r^2s^2

2. 200 cm : 8km

2007-01-29 06:55:30 · 2 answers · asked by Anonymous in Mathematics

has something to do with greece

2007-01-29 06:54:20 · 4 answers · asked by coqueta4real 1 in Earth Sciences & Geology

Even factoring in the earths tilt which gives us the seasons and the rotational speed( about 1000mph) at the equator, giving us the westerlies, there may not be much mixing of the Northern and Southern hemispheres atmospheres.True?

2007-01-29 06:53:35 · 3 answers · asked by Anonymous in Weather

Which of these are possible rational roots of the above polynomial:

1) +/- 7
2) +/- 1/2
3) +/- 1/7
4) +/- 1
5) +/- 2

2007-01-29 06:53:20 · 6 answers · asked by Random G 3 in Mathematics

2007-01-29 06:52:48 · 12 answers · asked by ginger 6 in Biology

i added 45 (1+2+3+4+5+6+7+8+9)+ 4500 and got 4545 is that even close?

2007-01-29 06:51:27 · 8 answers · asked by xenon 5 in Mathematics

Since Yahoo pulled my question, I guess they think so. I guess Yahoo does not like biology.

2007-01-29 06:50:18 · 7 answers · asked by hillaryskanksalot 1 in Biology

Im having some trouble with my calculus homework. Our teacher gave us a worksheet of some problems, and I got stuck on this second derivitive.

the Origional problem was - f(x)=(1/5)(x^5 - 5)^3

I used the chain rule and got - f'(x)=(3/5)(x^5 - 5)^2 * 5x^4

But when I went to do the second derivitive.... I got lost because its the chain rule and product rule right? can someone show me how to do this...?

2007-01-29 06:50:03 · 4 answers · asked by Mindless 3 in Mathematics

I always see cells floating around in little clusters and I was wondering how it could possibly be happening.

2007-01-29 06:49:58 · 2 answers · asked by Anonymous in Biology

Will the human race ever fall short of resources like coal, iron and other metals due to excessive mining?
The question poped in my mind when I heard that 40 tonnes of geological material is processed to make 1 oz of gold.

I am sure that one day we will be able to get resources from other planets.
But how long can we sustain that need?

2007-01-29 06:46:40 · 5 answers · asked by CableCut 1 in Earth Sciences & Geology

2007-01-29 06:46:18 · 19 answers · asked by kellyray2000 1 in Astronomy & Space

my doughter is doing a solar system project and we can't find a solar cacutater any were please help

2007-01-29 06:46:00 · 3 answers · asked by loulou1607 1 in Astronomy & Space

2007-01-29 06:44:44 · 6 answers · asked by Anonymous in Medicine

Which of these evolutionary processes is thought to have occurred first?

A. Simple compounds existed in Earth's early oceans and hot springs.
B. Complex molecules were produced when the Sun provided enough energy.
C. Molecules like DNA and RNA formed and later reproduced themselves.
D. Protobionts formed, followed by prokaryotic cells.

2007-01-29 06:44:29 · 10 answers · asked by Rattiesrule 2 in Biology

is there proof that earth has a core? or is it possible it is hollow at the center?

2007-01-29 06:44:00 · 5 answers · asked by stinkyhotdogs 3 in Earth Sciences & Geology