Science & Mathematics - 2 October 2007

There are three choices.
A.) Shallow centers
B.) Dranaige ditches
C.) High Curbs

My son has this difficult question on his take home test. It's giving me some trouble too. Some help would be great. Thanks.

2007-10-02 16:34:56 · 2 answers · asked by glasstin10 3 in Earth Sciences & Geology

2007-10-02 16:34:18 · 2 answers · asked by Heidi 1 in Biology

A 0.700 kg ball is on the end of a rope that is 1.20 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, rotates about the pole's symmetry axis. The rope makes an angle of 70.0° with respect to the vertical. What is the tangential speed of the ball?

2007-10-02 16:34:15 · 2 answers · asked by Anonymous in Physics

2007-10-02 16:32:57 · 2 answers · asked by Mercury 2010 7 in Astronomy & Space

Graph the quadratic equation after completing the given table of values. y = x^2 – 2x

x y
-1
0
1
2
3

2007-10-02 16:32:25 · 3 answers · asked by trevor s 2 in Mathematics

2007-10-02 16:30:05 · 2 answers · asked by red_princess5 1 in Medicine

Simplify the expression:

(5y^2-10y)/(y^2-y-6) =

Show your work... I really need help with this, I have a whole sheet with these, and need someone to help explain what I need to do!

Thanks!

2007-10-02 16:28:35 · 4 answers · asked by djclayatthez 1 in Mathematics

2007-10-02 16:27:09 · 4 answers · asked by cow man 1 in Mathematics

plzz name all you know about them but they have to be in california

2007-10-02 16:25:53 · 1 answers · asked by juan m 1 in Earth Sciences & Geology

The reactions that typically occur when a neutron strikes a uranium-238 nucleus and a uranium-235 nucleus are different. Explain how.


___ A. The uranium-235 nucleus absorbs the neutron and is converted to plutonium-238, whereas uranium-238 undergoes nuclear fission.
___ B. The uranium-238 nucleus absorbs the neutron and is converted to uranium-239, whereas uranium-235 undergoes nuclear fission.
___ C. The uranium-238 nucleus absorbs the neutron and is converted to plutonium-239, whereas uranium-235 undergoes nuclear fission.
___ D. The uranium-235 nucleus absorbs the neutron and is converted to uranium-238, whereas uranium-238 undergoes nuclear fission.

2007-10-02 16:18:37 · 1 answers · asked by Anonymous in Chemistry

each other??? i don't understand what the difference is between a mole and molar mass. how do i find how many atoms are in 2.50 moles of Hydrogen? i really appreciate the help!

2007-10-02 16:14:10 · 5 answers · asked by bella_cullen 1 in Chemistry

if the genes for coat color and gait in horses were caried on the same chromosome. And how do genetic principles yield predictable results

2007-10-02 16:10:42 · 2 answers · asked by Nah Nah 1 in Biology

We have touch lights as our bedside lights and for the past 12 mths they have taken to turning on and off on their own. I have looked for climatic conditions, power surges, and even bad connections or dusty lights, but none of these make a difference.

Does anyone here feel they can explain what is going on?

2007-10-02 16:08:45 · 10 answers · asked by Rational Thought 3 in Paranormal Phenomena

2007-10-02 16:08:06 · 6 answers · asked by archywind 2 in Physics

2007-10-02 16:07:06 · 3 answers · asked by Anonymous in Medicine

PLEASE HELP!! AND FAST

2007-10-02 16:06:25 · 3 answers · asked by dfdf 1 in Biology

x+2y-z= -3
2x-y+3z=14
x+4y-2z= -8

2007-10-02 16:06:22 · 7 answers · asked by Anonymous in Mathematics

2007-10-02 16:06:20 · 8 answers · asked by ciella r 1 in Mathematics

or a pathologist, oncologist, psychiatrists, etc..... or only surgeons are allowed?

2007-10-02 16:06:00 · 4 answers · asked by Anonymous in Medicine

the answer is either _ _ _ A _ _ or _ _ _ _ A _ _

2007-10-02 16:05:53 · 1 answers · asked by jasperapi 1 in Physics

the elections.

2007-10-02 16:05:23 · 3 answers · asked by clickclack b 1 in Mathematics

It would be nice for who ever can answer these questions too.
1. how do moving air masses create weather?
2. how do the earths revolution and tilt affect the seasons?
3. how do the earths revolution and tilt affect the seasons?
4. what is the difference between weather and climate?
5. what are some examples of extreme weather?
6. what are the four factors that affect climate?
7. what are examples of forces that pridce climate change?
8. what role do wind and ocean currents play in climate?
9. how do latitude and altitude affect climate?
10. how do el nino and la nina affect climate?
11. what are the five basic climates regions?
12. how do tropical climates differ from each other?
13. what are the factors that determine climate?
14. how do desert regions differ from one another?
15. how are humid subtropicaland mediterranean climates different from each other?
16. how are soil and vegaetation linked?
17.what are the difference between decidouse and coniferous trees-thnx

2007-10-02 16:04:32 · 3 answers · asked by TurBo 1 in Weather

Can it be done without the derivative or whatever that is?

2007-10-02 16:03:04 · 5 answers · asked by scienceguy 1 in Mathematics

2007-10-02 16:02:28 · 3 answers · asked by julian192001 3 in Astronomy & Space

2007-10-02 16:02:23 · 5 answers · asked by Anonymous in Geography

Two packing crates of masses m1 = 10.0 kg and m2 = 5.00 kg are connected by a light string that passes over a frictionless pulley as in Figure P4.26. The 5.00 kg crate lies on a smooth incline of angle 41.0°. Find the acceleration of the 5.00 kg crate.

______ m/s2 (up the incline)

Find the tension in the string.
______ N

need a detailed way to solve the problem, not just the answer...thank you sooo much

2007-10-02 15:58:50 · 1 answers · asked by lttlstar7 1 in Physics

it need to use noble gas. I got [Ar]4s(2)3d(4), but it's wrong!!! what is the right answer? thank you.

2007-10-02 15:57:41 · 1 answers · asked by meilingqian89 1 in Chemistry

I need to have a good explanation please!!!

2007-10-02 15:56:07 · 2 answers · asked by Searching at dusk 3 in Biology

2007-10-02 15:55:35 · 3 answers · asked by Anonymous in Biology

2007-10-02 15:51:11 · 3 answers · asked by Brooke 2 in Biology