Science & Mathematics - 20 November 2006

2006-11-20 04:09:26 · 7 answers · asked by anshu 1 in Biology

I need to know what a rainforest is, where they are in the world and why they are important! Please help.

2006-11-20 04:09:06 · 10 answers · asked by Anonymous in Geography

How many grams of salt do I need to add to water to get normal saline which is 0.9%NaCl? Similarly, how many grams of salt do I need to add to water so that I can get 23.4%NaCl solution?

2006-11-20 04:08:28 · 3 answers · asked by curious 2 in Chemistry

jack cruised 42 miles downriver in 45 min (0.75 hr.)
His return trip took 1 hr. Determine the average speed of his motorboat in still water and the average speed of the river current??

2006-11-20 04:06:39 · 3 answers · asked by Erica C 1 in Geography

2006-11-20 04:03:58 · 3 answers · asked by pramod s 1 in Earth Sciences & Geology

2006-11-20 04:02:38 · 9 answers · asked by christy_petrusch 1 in Astronomy & Space

2006-11-20 04:01:41 · 1 answers · asked by nancy a 1 in Earth Sciences & Geology

2006-11-20 03:59:49 · 1 answers · asked by ymoc7 1 in Mathematics

[1 1 1 3100 ]
[0 .01 0.02 32 ]
[0 0 3 3600 ]
its supposed to be one large bracket and from this information it says you can see from the matrix that z =1200 how did they get 1200 from simply looking at this?

2006-11-20 03:58:32 · 2 answers · asked by incubabe 6 in Mathematics

solve for X

4.9G^2 = V^2 cos (x) * (G sin (x) - h cos (x))

if you know what x is you probally know what this is for

2006-11-20 03:58:26 · 1 answers · asked by Flaming Pope 4 in Mathematics

electrical engineering

2006-11-20 03:57:13 · 2 answers · asked by Anitha P 1 in Engineering

2006-11-20 03:53:46 · 3 answers · asked by dineshkumar t 1 in Zoology

What is the end result of those balloons

2006-11-20 03:53:00 · 17 answers · asked by gideon d 1 in Physics

What detrimental effect might this have on her breathing?

2006-11-20 03:51:20 · 3 answers · asked by Erin D 2 in Other - Science

#1)In serving, a tennis player accelerates a 56kg tennis ball horizontally from rest to a speed of 30m/s. Assuming that the acceleration is uniform when the racquet force is applied over a distance of 0.5m, what is the magnitude of the force exerted on the ball by the racquet?

#2.)The coefficients of static and kinetic friction between a 50kg box and a horizontal surface are 0.500 and 0.400,respectively.
a.) What is the acceleration of the object if a 250N horizontal force is applied to the box?
b.) What is the acceleration if the 250N force is applied at an angle of 45 degrees above the horizontal?

#3.)A lawnmower is being pushed on a level lawn with a constant force of 200N at an angle of 30degrees downward from the horizontal. How far does the student push the mower in doing 1.44*10^3 Joules of work?

#4.)What is the maximum height reached by a 0.300 kg ball thrown vertically upward with an initial speed of 10.0m/s?

2006-11-20 03:50:42 · 1 answers · asked by Anonymous in Physics

the botanical name of a medicinal herb called mehandi plant....?

2006-11-20 03:50:33 · 5 answers · asked by dan'n'harry 1 in Botany

2006-11-20 03:48:59 · 12 answers · asked by Kevin_Mart13 3 in Astronomy & Space

Why are all the deflections in the same directions, both depolarizations and repolarizations?

2006-11-20 03:48:55 · 2 answers · asked by qutiepy9 2 in Biology

2006-11-20 03:48:25 · 4 answers · asked by jakeimhaniah 1 in Earth Sciences & Geology

2006-11-20 03:48:19 · 2 answers · asked by Chicago Girl 4 in Weather

2006-11-20 03:47:52 · 2 answers · asked by widetrack 1 in Geography

I'm doing an AP Chemistry career paper on chemistry and Pharmaceuticals, and I need all the information I can possibly get. PLEASE HELP!

2006-11-20 03:47:09 · 3 answers · asked by Mickie 2 in Chemistry

Did Newton know about that but refused to elaborate an explanation?

2006-11-20 03:47:01 · 3 answers · asked by goring 6 in Astronomy & Space

I need some physics help on where/why these numbers come out the way they do. I know that gravity is ~9.81 m/s/s and in feet that is about 32 ft/s/s. In math when we talk about vertical motion problems we use the equation d=rt-5t^2 for measuring in meters and we use d=rt-16t^2 for measuring in feet. MY QUESTION is WHY are we basically dividing by 2 from ~10 to 5 and ~32 to 16???

2006-11-20 03:45:47 · 6 answers · asked by smokskleine 1 in Physics

This animal is the size of a small dog, but looks distinctly like a rodent with the brown fur of a fawn, including the whitish circles on the fur. It's name sounds like "tempesquinckly."

2006-11-20 03:45:46 · 2 answers · asked by Tom M 1 in Zoology

2006-11-20 03:44:35 · 2 answers · asked by SHAILY 1 in Mathematics

Did Newton know about that but refused to elaborate an explanation?

2006-11-20 03:43:29 · 1 answers · asked by goring 6 in Physics

I usually adjust it to 23-26 degree C during summer, what about when it gets cold (I'm freezing right now)

2006-11-20 03:42:30 · 3 answers · asked by Weaam 4 in Engineering

a)By what possible mechanisms of action could this drug work? List only 2 methods.
b)the chemical could affect either the presynaptic or postsynaptic membrane?

(PLEASE HELP ME HERE..I HAVE A TEST)

2006-11-20 03:41:35 · 2 answers · asked by Ashley 1 in Chemistry

plzzz i have a debate on this point and i need scientific evidences

2006-11-20 03:40:42 · 6 answers · asked by arwitta1 1 in Biology