Science & Mathematics - 24 November 2007

Always just wanted to know, and if there are then how destructive are they? example.

2007-11-24 05:06:49 · 5 answers · asked by Anonymous in Weather

2007-11-24 05:04:20 · 2 answers · asked by Anonymous in Physics

Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to simulate gravity is to shape the spaceship like a bicycle wheel that rotates about an axis just like a wheel, with the astronauts walking on the inside of the "tire."
Consider
a) how objects fall
b) the force we feel on our feet
c) any other aspects of gravity you can think of.

Please help, thank you!

2007-11-24 05:01:14 · 1 answers · asked by Kiwikahuna 2 in Physics

2007-11-24 05:00:58 · 2 answers · asked by shericag 1 in Weather

a=angle
a is in quadrant III

2007-11-24 04:59:56 · 3 answers · asked by chrys 1 in Mathematics

2007-11-24 04:56:27 · 6 answers · asked by Anonymous in Physics

2007-11-24 04:54:36 · 9 answers · asked by suer 2 in Geography

2007-11-24 04:43:54 · 1 answers · asked by kev.tatlow@btinternet.com 1 in Earth Sciences & Geology

In relation to physics.

2007-11-24 04:41:39 · 3 answers · asked by diablo_blaze7 2 in Physics

You cannot create matter. How is the universe expanding with endless boundaries? I think the big bang caused it to become huge, and now it's collapsing inward. The empty space has extremely low pressure so the universe material would wanna fill it up and therefore it is contracting.

2007-11-24 04:40:50 · 5 answers · asked by Seymour Nuts 3 in Astronomy & Space

These are the directions: Indicate the additional pairs of corresponding parts that would have to be proved congruent in order to use the given postulate or theorem to prove the triangles congruent.

I have 5 problems like this. Here's one of them:

Triangle ACE (is congruent to) Triangle CDE by SSS

(Wow, this is hard to explain without pics lol)
Ok, the problem already shows that segment AE is congruent to segment DE. So, would the answer to this problem be:

Segment AC is congruent to segment DC
Segemnt CE is congruent to segment CE (or do i not need to say this one since they are the same segments??? I just don't want to do this wrong on all 5 problems like this...)

2007-11-24 04:35:39 · 3 answers · asked by breta50 1 in Mathematics

2007-11-24 04:33:46 · 8 answers · asked by Boogie 2 in Mathematics

2007-11-24 04:28:16 · 2 answers · asked by Ashwin K 1 in Physics

2007-11-24 04:26:38 · 3 answers · asked by jadobob 2 in Zoology

Factor completely
5x(x – y) – 10(x – y)

2007-11-24 04:25:36 · 10 answers · asked by Anonymous in Mathematics

A 2-kg block and 8-kg block are both attached to an ideal spring (k = 200 N/m) and both are initially at rest on a horizontal frictionless surface.
A 100-gram ball of clay is thrown at the 2-kg block, moving horizontally with speed v when it hits and sticks to the block. 8-kg block is held still by a removable stop. Spring compresses a maximum distance of 0.4 m.

a. Energy stored in the spring at max. compression.
b. Speed of the clay ball and 2-kg block immediately after the clay sticks to the block but before the spring compresses significantly.
c. Initial speed v of clay

An identical ball of clay is thrown at another identical 2-kg block, but this time the stop is removed so that the 8-kg block is free to move.

d. Max. compressionn of the spring will be greater than, equal to, or less than 0.4 meter?
e. State principles used to calculate v of 8-kg block at the instant that the spring regains its original length. Write equations and show numerical substitutions.

2007-11-24 04:25:20 · 2 answers · asked by M4tr!x 2 in Physics

Factor completely
49x^2-9

2007-11-24 04:24:39 · 11 answers · asked by Anonymous in Mathematics

Divide
(2x-6)/(21) divided by (5x-15)/(12)

2007-11-24 04:23:26 · 5 answers · asked by Anonymous in Mathematics

Divide

(70x^3+35x^2)/(7x)

2007-11-24 04:21:40 · 9 answers · asked by Anonymous in Mathematics

Would you assume the final velocity to be zero?...and if anyone can help it will be greatly appreciated..for some reason these acceleration problems have been causing me problems..thanks

2007-11-24 04:20:10 · 4 answers · asked by ... :) 2 in Physics

2007-11-24 04:13:55 · 3 answers · asked by love 1 in Physics

2007-11-24 03:59:55 · 6 answers · asked by Anonymous in Mathematics

plz help

2007-11-24 03:59:31 · 4 answers · asked by Anonymous in Geography

with special emphasis onbackground;
rise and need;
and any 3 of the foll:
(use in) 1. medicine,
2. automobiles,
3.tectiles,
4,sports goods,
5. fast moving consumer goods(FMCG)

AND AS LONG AS POSSIBLE RELATED TO INDIA

2007-11-24 03:58:46 · 1 answers · asked by Anonymous in Geography

now imagine theres a point A at height of 40 metres . now from that point a thin non elastic lace (thread) starts to materialize(magically orignate) and run down and hits the ground due to gravity. the lace keeps on appearing and its like endless. now when it appears at point A its velocity is zero but it gets jerked up to a velocity . now what would be the vellocity of the lace when hits the ground after runnin down 40 metres. AIR RESISTANCE IS TAKEN AS ZERO. here gravity is acting on the vertical length of the lace which is forty metres. according to me the lace can have a maximum velocity of only 20 m/s. which is less than 28 m/s when u drop something from a height of 40 metres..

2007-11-24 03:57:25 · 1 answers · asked by balaji.k 2 in Physics

2007-11-24 03:56:37 · 8 answers · asked by pet 1 in Mathematics

2007-11-24 03:44:05 · 5 answers · asked by fahim_1182 2 in Mathematics

Estimate the lowest possible energy of a neutron contained in a typical nucleus of radius 1.14E-15 m.

I am totally stuck on this question. Every equation I have found seems to be in reference to an electron. I don't need the answer given to me...but a push in the right direction would be much appreciated!

2007-11-24 03:40:57 · 4 answers · asked by mosspoh 1 in Physics

2007-11-24 03:39:48 · 8 answers · asked by Anonymous in Physics

Jupiter, Earth, Venus, Pluto

It was on an IQ test (that doesn't show the answers) and I'm curious as to whether I got the right or wrong answer

Please explain too!

2007-11-24 03:35:29 · 13 answers · asked by Sasha 3 in Astronomy & Space