Science & Mathematics - 20 December 2006

Anyone know how to solve this?

2006-12-20 23:59:38 · 7 answers · asked by Joeschmo 1 in Mathematics

2006-12-20 23:54:54 · 8 answers · asked by Anonymous in Mathematics

Would I be digging with the earth above me and come out upside down and then fall off the planet into the sky ?

2006-12-20 23:51:11 · 36 answers · asked by Justin H 1 in Earth Sciences & Geology

What are three great river systems which wind through the heart of China?

2006-12-20 23:48:03 · 4 answers · asked by what? 2 in Geography

2006-12-20 23:40:16 · 3 answers · asked by nagant39@sbcglobal.net 2 in Engineering

What is (2x+1)/(x-2)

2006-12-20 23:34:12 · 7 answers · asked by alikat4392 4 in Mathematics

2006-12-20 23:33:52 · 2 answers · asked by priyanka p 1 in Chemistry

2006-12-20 23:32:49 · 13 answers · asked by talent 2 in Physics

Clean a penny and a dime by brushing them with toothpaste and rinsing them carefully.
2. place the dime on top of your tongue and then hold the penny under you tongue.
3,move them forward until the edges of the coins touch, with your tongue in between
4. Now rinse your mouth with strong salt water, a teaspoonful of salt to a glass of water.
5.Repeat the procedure as in Step 2.

Results
1. What happened when the coins touched the first time?
2. What happened when the coins touched the second time?

please explain this experment to me, I have some problems to under it.

2006-12-20 23:31:50 · 2 answers · asked by liangjizong22 1 in Physics

2006-12-20 23:28:49 · 1 answers · asked by Aayush AHUJA 1 in Mathematics

2006-12-20 23:28:24 · 1 answers · asked by annie 2 in Chemistry

2006-12-20 23:28:21 · 3 answers · asked by talent 2 in Medicine

2006-12-20 23:25:45 · 5 answers · asked by priyanka p 1 in Chemistry

Flue gas blast in boiler.Due to that Electrostatic presipretor and air pre heater duct tottaly dameged.boiler pressure parts also dameged. what is the reason for this? where did it happen?

2006-12-20 23:18:32 · 5 answers · asked by praba 1 in Engineering

2006-12-20 23:17:35 · 14 answers · asked by francisterence 3 in Astronomy & Space

1>.Wilms tumor 2>.Neuroblastoma
3>. Pheochromocytoma 4>. Osteosarcoma
5>. All of the above

2006-12-20 23:16:23 · 1 answers · asked by Iamman 1 in Medicine

The exact physics and calculations to go through.

2006-12-20 23:12:59 · 5 answers · asked by Anonymous in Physics

2006-12-20 23:11:46 · 3 answers · asked by khamooosh2004 1 in Medicine

2006-12-20 23:11:02 · 2 answers · asked by vicky 1 in Mathematics

Einstein showed that all frames of reference are equally valid, so the earth can be considered as a frame of reference independent of the rest of the universe. Given that the earth is merely rotating and NOT accelerating, why are winds or missiles or anything above the earth's surface affected by the earth's rotation?

Does it have to do with conservation of angular momentum, as a body travels from large spinning circles toward smaller spinning circles (lines of latitude)? Even then, it still seems contradictory to relativity theory in that the earth doesn't "know" that it is rotating, nor does anything on it.

I guess my question is Why is a rotating frame of reference discernable from a non-rotating one? It's only rotating relative to the rest of the universe; does the universe's inertia matter? Is this related to gyroscopic precession?

I've read the Wikipedia entry and seen the movies of balls on merry-go-rounds. What am I not getting?

This has been bugging me for 15 years

2006-12-20 22:58:43 · 6 answers · asked by warm106fm 1 in Physics

What methods would you use and what facilities would you bring along?

MDP

2006-12-20 22:57:11 · 6 answers · asked by Mervin DePervin 2 in Astronomy & Space

A friend heard on the radio this morning that the Red Squirrel is becoming endangered. Is this true? And what can we do about it?

2006-12-20 22:55:18 · 29 answers · asked by Skippy 5 in Zoology

I've heard of a substance that we rebuild during sleep but I can't think of what they're called. If you can explain more about sleep to me also, it would be appreciated.

2006-12-20 22:53:45 · 5 answers · asked by soulfuljim1 2 in Biology

2006-12-20 22:44:36 · 49 answers · asked by mike h 1 in Geography

Please write in detail, with steps and statements. thx.

I tried to solve it with cubic equation root formula[ X=A^1/3+B^1/3, A+B=-P，AB=-（Q/3）^3]，but it doesn't apply to this one. Couldn't work out A and B

How do I solve this one? THANKS A LOT GUYS!!

2006-12-20 22:41:39 · 9 answers · asked by DedB 2 in Mathematics

2006-12-20 22:29:31 · 6 answers · asked by jillb61180 1 in Geography

2006-12-20 22:28:37 · 9 answers · asked by jillb61180 1 in Geography

Which do you prefer and why?

For me, I prefer Biology as it doesn't need a lot of math as comapred to Physics. Plus I find Biology more interesting and easier...

2006-12-20 22:27:45 · 12 answers · asked by silvs 5 in Other - Science

2006-12-20 22:27:39 · 2 answers · asked by jillb61180 1 in Geography

can someone please explain the theory of "the big bang" and how people have come to that conclusion?

(i'm a christian, so i know how it works in the bible. i dont get the big bang, however...)

2006-12-20 22:27:06 · 4 answers · asked by Anonymous in Physics