Science & Mathematics - 15 July 2007

if an object is fired at a vertical angle (90degrees) from horizon, at a heighth of 156.25', what was the initial velocity.

2007-07-15 07:02:07 · 2 answers · asked by ftm821 2 in Physics

just wondering

2007-07-15 06:57:29 · 5 answers · asked by macgyver 1 in Engineering

solid magnesium oxide is reacted with solid potassium oxide

2007-07-15 06:57:28 · 2 answers · asked by Drogba 2 in Chemistry

a) conducts water downward in the plant
b) transports food upward in the plant
c) transports water and minerals
d) tranfers materials from stem to leaf


*[I'm thinking it's B ... what do you guys think??]

2007-07-15 06:55:03 · 4 answers · asked by Anonymous in Biology

2007-07-15 06:54:58 · 2 answers · asked by jahtiger 1 in Biology

2007-07-15 06:54:48 · 8 answers · asked by LEONARD W 4 in Zoology

8x^2 - 32x +24

2007-07-15 06:54:05 · 4 answers · asked by Anonymous in Mathematics

My parents are both one of 12. My mum is healthy and so are most of her brothers and sisters, but my dad isn't particularly and neither are (were) his brothers/sisters - heart disease, stroke and cancer have taken most of them. They both had relatively similar upbringings - poor with not much to go round. I have a similar look and body-shape (unfortunatley as I am a woman) to my dad so could that mean I have my mum's half of my genes in my physiological make up? Or am I just fooling myself?

2007-07-15 06:52:31 · 8 answers · asked by Maz R 2 in Biology

3x^2 +23x -36

2007-07-15 06:52:03 · 4 answers · asked by Anonymous in Mathematics

I found it in my backyard in Great Falls, Virginia and have never seen or heard of anything like it. It is huge and I have included some pictures of it. It has 2 giant antennae and 2 huge pincers. It is a flying insect. Any info is appreciated.
http://360.yahoo.com/my_profile-TeyiSBk1YqqBjHYmS6wbCQey

2007-07-15 06:50:35 · 4 answers · asked by BOGEYMANTEXAS 2 in Zoology

Time goes only forward, not backwards. But in space, you can move back and forth, left and right, up and down. For each space dimension, you can go in two directions. If time would work in the same way, it would be possible to travel backwards in time. But how would it be the other way around: what would it be like if in all the three space dimensions there were only one direction, like with time?

2007-07-15 06:49:14 · 7 answers · asked by Justin Case 1 in Physics

dolphins breathing on land

2007-07-15 06:47:54 · 15 answers · asked by leeds_army 1 in Zoology

2007-07-15 06:44:27 · 3 answers · asked by Quimby 3 in Zoology

really basic things again , i don't know how to do..

:(

Determine the measure of angle A in ABC to the nearest degree, if a =55cm, b=26cm and c=32 cm. (A=143*)

Find the area of triangle XYZ to the nearest tenth of a square metre, if x=9.5m, y=10.3, and z=6.8m. (Answer=31.3m^2)

2007-07-15 06:39:52 · 4 answers · asked by mystery_girl07 2 in Mathematics

2007-07-15 06:37:59 · 12 answers · asked by archaes 1 in Zoology

2007-07-15 06:30:38 · 5 answers · asked by philkroper 2 in Weather

we have all seen these collections of numbers in large brackets. But what exactly is a matrix?
Is it just a collection of scalar numbers or vectors?
I have seen in some textbooks the 'name' of the matrix given in bold letters but in some places not.

So what exactly is it?

2007-07-15 06:30:23 · 4 answers · asked by sh 1 in Mathematics

2007-07-15 06:28:30 · 10 answers · asked by Anonymous in Weather

2007-07-15 06:27:12 · 2 answers · asked by Anonymous in Botany

2007-07-15 06:27:01 · 6 answers · asked by foghnanross 2 in Zoology

has ne one ever thought abt or seen a stand alone affordable power generation unit cheaper than normal power supply on running costs(even if higher one time costs) ..I am in india..but ne info is welcome.My idea is abt an INDIVIDUAL HOUSE OWNER NEEDS

2007-07-15 06:24:49 · 6 answers · asked by Anonymous in Earth Sciences & Geology

For example, internal medicine AND Pathology?

2007-07-15 06:24:18 · 10 answers · asked by Anonymous in Medicine

Is the statistic that is easier to be attaked by terrorists than it is to get married over thae age of 40 true?

2007-07-15 06:23:55 · 3 answers · asked by Erin G 3 in Mathematics

I posted a letter about the sun as the cause of the global warming giving all my grey matter. Here I have the Mars where I don’t live. May I have the scientific answer please no just jibber jibber? Please I am on a project. Thank you

“There’s a heat wave in L.A. and all across the country. Some say global warming; some say that other mysterious phenomenon -- summer.”
- Colin Ferguson, July 11, 007
They are confused and we are talking
Firozali A.Mulla MBA PhD
P.O.Box 6044
Dar Es-Salaam
Tanzania
East Africa

2007-07-15 06:23:07 · 3 answers · asked by Firozali A M 1 in Weather

...because string theory doesn't seem to be.

2007-07-15 06:22:54 · 6 answers · asked by mesun1408 6 in Physics

Q: A penny is dropped from rest from the top of the building. Considering the height of the building is 427 meters & ignoring air resistance, find the speed with which the penny strikes the ground.

-I need help for my physics exam, any help would be greatly appreciated.

2007-07-15 06:21:20 · 7 answers · asked by mikko 1 in Physics

This ones about human and canine interaction ( please bare with me on this one ) Given the fact that humans and dogs have co-existed for thousands of years , and that our canine buddys are fairly intelligent and understand and respond not only to language but to emotions as well . Do you think that in time dogs will evolve enough to communicate through speach??( told you it was a strange one lol )

2007-07-15 06:18:16 · 20 answers · asked by Simon t 4 in Biology

Formulas to work with?
delta Tf = (Kf(mole of solute)) / (kg solvent)
delta Tb = Kb (same as above)
Freezing pt. of solution = 0 celcius - delta Tf
boiling pt. = 100 celcius + delta Tb

Kf of H2O = 1.86
Kb of H2O= 0.52
do you use Kb and Kf of H2O?

2007-07-15 06:15:48 · 2 answers · asked by Anonymous in Chemistry

I'm trying to find the rms values of E (electric field) and B (manetic field). I'm only given power and the diameter of the laser beam. I'm not sure where to start with the problem.

2007-07-15 06:10:02 · 2 answers · asked by babykrisbach1 2 in Physics

thanks for any help given, i'm no good at math

2007-07-15 06:07:10 · 4 answers · asked by Anonymous in Mathematics