Science & Mathematics - 25 October 2006

A person weighing 200N sits on a sled and is pulled 75m horizontally at a constant speed by a force of 100N acting on the sled at an angle of 30 degress to the horizontal. What is the amount of work on the person by the vertical component of the 100 N force? Why is this true?

2006-10-25 19:51:17 · 1 answers · asked by Cin 1 in Physics

OK, if our sun is destined to expire and we know of other plantes close to earths environment (minus trees and water which can easilly be reproduced) then : if we gravitationally pull these plantes into a different point of orbit, say with our own earth ( but will that throw earth dangerously out of its own orbit of the sun ) or with a larger planet ( which we could draw closer to the sun to maintain a level of comfort of warmth) but beyond the reach of the iminent Red Giant the sun will become, would that save us for long enough to colonize other places to call home? whatever, I have too many questions.

2006-10-25 19:50:38 · 3 answers · asked by Anonymous in Astronomy & Space

the wt of other body may be greater than the wt of the body exhibiting force

2006-10-25 19:49:01 · 4 answers · asked by deepu h 1 in Physics

Is the intelligence a child receives somewhat based upon the intelligence of his/her parents? I often hear that since the parents are smart the child must be clever, is this reasonable? Is intelligence based genetically? Thank you.

2006-10-25 19:48:11 · 12 answers · asked by Mujaahid 3 in Medicine

physics

2006-10-25 19:43:31 · 5 answers · asked by raman mishra 1 in Physics

They are predicting a giant (9+!!) subduction zone earthquake for the Pacific Northwest which is an exact duplicate of the type that caused the tsunami quake in Indonesia.
First, what will happen to my one floor house in such an earthquake if it falls off its foundation? It is not strapped to the foundation. I have a crawlspace. Will the attic fall in and collapse the ceiling totally. Will we be badly injured? My house is in the Portland area 70 miles from the coast. My house is built on a solid giant gravel deposit from the Lake Misoula flood. The earthquake will occur in the subduction zone fault about 100 miles off the coast.

Also, what will happen to the three cities of Portland, Seattle and Vancouver BC?
What happened to highrises in the Indonesian earthquake if any? I never heard about the effects of the earthquake itself from that.
Thanks

2006-10-25 19:43:09 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2006-10-25 19:41:18 · 3 answers · asked by Anonymous in Physics

example:- Pivotal

2006-10-25 19:37:30 · 1 answers · asked by karthik b 2 in Mathematics

How to take the acidic qualities out of modern paper/books - is there something one can buy or make?

2006-10-25 19:34:30 · 1 answers · asked by sincere12_26 4 in Chemistry

1. log 3 (x^2y^3)
2. log 2 [(x^2+1)/(2^x)]
3. ln [(x^2 square root (x^2-1))/e^x]

Thx much

2006-10-25 19:33:26 · 3 answers · asked by Nina Karina 1 in Mathematics

what is the correct method to calculate the upper and lower quartiles of a set of data, also please include any ways to over complications like if there is an uneven number of data values etc.

2006-10-25 19:30:49 · 1 answers · asked by Anonymous in Mathematics

2006-10-25 19:28:20 · 10 answers · asked by ♪寿司人♫ 3 in Mathematics

An organ is injured in a way that enables the stroma to regenerate, but not the parenchyma. What impact will that have on the subsequent functioning of that organ?

2006-10-25 19:18:40 · 2 answers · asked by SICK MY DUCK! 1 in Medicine

2006-10-25 19:13:49 · 24 answers · asked by Chuck Dhue 4 in Astronomy & Space

Given the catastrophic scenarios of ice caps melting, sea level rising, giant apocalyptic storms, monster hurricanes and monster tornadoes and extreme floods.

I don't see any big changes in the climate. Given all the fuss about global warming, it's not happening soon enough.

I can't wait to see this happen. DO YOU ?

2006-10-25 19:12:43 · 13 answers · asked by Technotron 2 in Earth Sciences & Geology

2006-10-25 19:10:10 · 6 answers · asked by /=ati/\/\a 1 in Biology

What's the temperature of space?

2006-10-25 19:08:51 · 12 answers · asked by Anonymous in Astronomy & Space

A missle being launched reaches a vertical velocity of 100m/s when the rocket engine shuts off. To what additional height will the missle go before it stops going up and falls back to Earth?

2006-10-25 19:07:56 · 3 answers · asked by Cin 1 in Physics

i'm studying for my midterm by doing old exams but can't get this question, so i'd appreciate anyone's help very much

find area inside circle x^2+y^2=4, and above the line y=(square root of 3)x

i tried finding the intersections, and i think they are at (1, root3) and (-1, -root3). then i got confused as to how to split up the integral into two sections. thanks in advance for your help.

2006-10-25 19:01:05 · 3 answers · asked by MG 2 in Mathematics

Calculate the number of years for an investment of $1000 to double at an interest rate of 7.2% for each compounding period

A) ANNUALLY
B) SEMI-ANNUALLY
C) MONTHLY
D) DAILY


plz show steps ... and formula in the form ... f(x)= a(2)^t/n ..... (where 'n' is the doubling time) ... thnku ... =)

2006-10-25 18:52:27 · 1 answers · asked by Meh... 3 in Mathematics

2006-10-25 18:52:01 · 7 answers · asked by Donald R 1 in Mathematics

2006-10-25 18:51:28 · 4 answers · asked by jr 1 in Mathematics

I'm looking for an all in one converter for weight, temperature, distance, fluid, etc preferably freeware...

2006-10-25 18:45:06 · 3 answers · asked by Anonymous in Other - Science

I was doing a search on time travel & I came upon an online document which was a 3 part story about 2 guys in canada, and using "power points" or some such to time travel. In short, the story at the end had said that the one man traveled ahead to 2010 or 2012, not exactly sure. He then says in the story that he tried to travel past the year 2012 and could not, like some strange force was restricting him from going further. I don't remember details on this, but I do remember him saying he did something, but I don't remember what that something was, and he got past 2012, and nothing was there. I told my brother this, and he said, yea, according to the Mayan calendar 2012 is the date. This shocked me cause I had no clue about this Mayan calendar thing. Below is a link for reference.

http://mysite.verizon.net/resoxkyi/theyear2012scam/id36.html

It's funny as to how people just totally dismiss anything they feel is totally fake, when there could be plausibility to it.

2006-10-25 18:44:35 · 6 answers · asked by twiigss 4 in Physics

2006-10-25 18:43:33 · 4 answers · asked by Random is my passion 4 in Physics

PORTLAND, OREGON

OR

LAS VEGAS, NEVADA?

2006-10-25 18:38:37 · 5 answers · asked by Anonymous in Geography

I have my old College scores in % (percentage), how do I convert this into GPA per an employer's requirement. I want the methodology rather than just instructions.What does GPA mean & "percentile" mean ?

2006-10-25 18:34:11 · 3 answers · asked by nimmy28677 5 in Mathematics

How far would hitting a ball this hard mean the ball travelled on Earth.

2006-10-25 18:34:02 · 6 answers · asked by Anonymous in Astronomy & Space

2006-10-25 18:33:33 · 4 answers · asked by Vage T 1 in Biology

i want to do something fun but easy and not get an F i'm not to picky its just nothing with machinery or plants i'm not good with those but PLEASE HELP ITS URGENT!!

2006-10-25 18:32:51 · 4 answers · asked by uNoUlOvEmE357 1 in Other - Science