Science & Mathematics - 28 November 2006

2.How do predator and prey influence one another
a)Populations numbers:
b)Evolution
Give examples to support your answer

Imm sorry i bother u guyss but i dont get this question and its on my homework so please help me i tried calling my friend and on the internet but i want a simple answer
if you do
thanks alot

2006-11-28 10:51:54 · 2 answers · asked by Anonymous in Biology

a box is given a push so that it slides across the floor. how far will it go, given that the coefficient of kinetic friction is .2 and hte push imparts an initial speed of 3.0 m/s

Thank you =]

2006-11-28 10:51:49 · 3 answers · asked by SonRK 2 in Physics

2006-11-28 10:50:30 · 6 answers · asked by James 1 in Physics

How can biologists use the idea of homologous structures to determine whether particular species are closely related?

2006-11-28 10:50:21 · 2 answers · asked by Anonymous in Biology

2006-11-28 10:50:10 · 8 answers · asked by johnjd_cmu 4 in Astronomy & Space

i cant find the answer this problem is called factoring trinomials of the type ax^2 + bx + c and i need u to work it out and give me the rite answer

2006-11-28 10:50:05 · 6 answers · asked by Shante R 1 in Mathematics

It is synthesis reaction and you have to balance it. Sr(s) + O2(g) -----> find the reactant.

2006-11-28 10:49:59 · 3 answers · asked by Traffic 4 in Chemistry

short breif paragraph please

2006-11-28 10:49:45 · 5 answers · asked by Anonymous in Chemistry

what is the fastest way to desolve an alkacelser?
and what is the slowest way or even a way 2 make it not desolve?

2006-11-28 10:48:19 · 2 answers · asked by Jan 2 in Chemistry

Two planes are flying toward each other. One is flying 240 miles per hour and the other 360 miles per hour. They are 440 miles apart. What will be there distance when they are 4 minutes away from each other? PLease explain I am lost

2006-11-28 10:47:45 · 4 answers · asked by Anonymous in Mathematics

2006-11-28 10:47:06 · 5 answers · asked by Panchito 1 in Astronomy & Space

2006-11-28 10:46:39 · 2 answers · asked by hilary 2 in Chemistry

2006-11-28 10:44:31 · 12 answers · asked by spooo_oks 1 in Physics

2006-11-28 10:43:57 · 2 answers · asked by knight 1 in Engineering

PLEASE HELP ADD ALL REFERENCES. I AM SENDING IT NEXT WEEK AND NEED TO KNOW IF I HAVE TO GET A CONVERTER. THANKS IN ADVANCE!

2006-11-28 10:43:40 · 3 answers · asked by Anonymous in Engineering

there are these two questions that have moment of inertia. for example one of them is:
a bowling ball has a mass of 7kg, a moment of inertia of 2.8*10(-2)kgm(2), and a radius of .10m if it rolls down the lane without slipping at a linear speed of 4m/s, its total kinetic energy is

-the numbers in parentheses are exponents or superscripts. however you call them.

my teacher had given equations but i dont remember him ever giving us an equation with moment of inertia.

if it was KE=1/2 mv(2) then there wouldnt be anywhere to put the radius and i dont know what the symbol for moment of inertia would be.

so basically what im trying to ask is, does anyone know an equation for this type of problem?

2006-11-28 10:43:01 · 2 answers · asked by Steph 2 in Physics

Can anybody give me three different numbers that average this? 5 minutes and 8 seconds.
Three different numbers that average this? 3 minutes and 46 seconds
Three different numbers that average this? 4 minutes and 17 seconds
Thank u!!!

2006-11-28 10:42:24 · 2 answers · asked by yourbiggestfan:) 4 in Mathematics

2006-11-28 10:42:17 · 3 answers · asked by goring 6 in Astronomy & Space

If you can answer any one of the above:
Niche, Habitat, Structural & Behavioral Adaptations

then, please tell me, thanks!

2006-11-28 10:42:02 · 3 answers · asked by Xiao 3 in Biology

2006-11-28 10:41:42 · 2 answers · asked by Dj NBT 1 in Mathematics

Define f : (-2,0) →R by f(x) = (x^2-4)/(x+2). Prove that f has a limit at -2, and find it

2006-11-28 10:41:16 · 1 answers · asked by MMM 1 in Mathematics

Suppose that a certain game, that does not cost to play, involves drawing one marble from an urn. Further suppose that the urn contains 4 red marbles, 3 green marbles, 5 white marbles, and 6 black marbles. If you draw a red marble, you win $5. If you draw a green marble, you win $4. However, if you draw a white marble, you lose $3, and if you draw a black marble, you lose $2.

a.) What is the Expected Value of this game.
b.) Is the game fair?

(please explain in detail the answers someone?)

2006-11-28 10:40:33 · 3 answers · asked by Nathan D 1 in Mathematics

Was watching Time Team the other day and one of the ways they could tell a skeleton was male was by it having brow ridges. This being the case why do men have them but not women. What is their purpose?

2006-11-28 10:39:45 · 10 answers · asked by Anonymous in Biology

2006-11-28 10:38:51 · 1 answers · asked by isaelmoguel 2 in Chemistry

The pronghorn antelope, found in North America, is the best long-distance runner among mammals. It has been observed to travel at an average speed of more than 55 km/h over a distance of 6.0 km. Suppose the antelope runs a distance of 5.0 km in a direction 11.5 degrees north of east, turns, and then runs 1.0 km south. Calculate the resultant displacement.

2006-11-28 10:36:35 · 2 answers · asked by FallenOrigin 2 in Physics

2006-11-28 10:35:26 · 3 answers · asked by km_rr88 1 in Mathematics

1. What number is 20% of 95?
2. 216 is what percent of 600?
3.What number is 230% of 40?
4.What percent of 900 is 792?
5. 27 is what percent of 90?
6.42 is what percent of 120?
7.What number is 65% of 80?
8.325% of what number is 143?
9. What percent of 225 is 207?
10. 136 is what percent of 80?

2006-11-28 10:35:03 · 2 answers · asked by Anonymous in Mathematics

2006-11-28 10:33:38 · 4 answers · asked by km_rr88 1 in Mathematics

true or false?
- a square is a rhombus
- a rhombus is a square
- a rhombus is a kite
- a kite is a rhombus
- a rhombus is a rectangle
- a rectangle is a rhombus
- a kite is a parrallogram
- a kite is a rectangle

thank you so muchh

2006-11-28 10:30:46 · 4 answers · asked by aznfaypor 2 in Mathematics

Can you please work this problem out in steps. I will give thumbs up and chose best answer.

(m squared + 2m -3) - ( -5m +3m squared -6)

Also if you can factor this polynomial in steps I would greatly appreciate it

3xy + 7x + 6y +14

Please show steps. Thank you.

2006-11-28 10:30:37 · 2 answers · asked by jwurm99 3 in Mathematics