Science & Mathematics - 11 December 2006

2006-12-11 16:09:11 · 16 answers · asked by Anonymous in Geography

2006-12-11 16:08:59 · 6 answers · asked by k* * 1 in Mathematics

If M and N are positive integers that have remainders of 1 and 3, respectively, when divided by 6, which of the following could NOT be a possible value of M+N?

(A) 86
(B) 52
(C) 34
(D) 28
(E) 10

2006-12-11 16:08:08 · 10 answers · asked by Amuthan A 1 in Mathematics

2006-12-11 16:07:07 · 8 answers · asked by Anonymous in Geography

2006-12-11 16:06:12 · 8 answers · asked by Anonymous in Geography

In what ways could someone teach a six year old child the concept of probability? What could probability teach that six year old child?

2006-12-11 16:06:10 · 6 answers · asked by Anonymous in Mathematics

1) H3PO4 (aq)
2) H2CO3 (aq)
3) H2SO4 (aq)

Anyone know what to do when there's "(aq)" ??

2006-12-11 16:04:28 · 6 answers · asked by Bo 3 in Chemistry

2006-12-11 16:02:38 · 4 answers · asked by ferysurfboy 1 in Astronomy & Space

if any way of comunication divides in three... emisor, canal and receptor so the tree make sound waves then the emisor ( tree) and canal ( waves ) are present can we say that the tree make a sound but the receptor is missing ? or that waves become sound only if a receptor is present ?? bottom line, does it make a sound??

2006-12-11 16:02:17 · 4 answers · asked by cano_x100pre 2 in Physics

if rectangular box of 2x20x8 is to be completely wrapped with paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be:

(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in

2006-12-11 16:02:12 · 7 answers · asked by Amuthan A 1 in Mathematics

That's the whole question... Please help.

2006-12-11 15:54:31 · 4 answers · asked by abc123 1 in Physics

x - y = 3

2x = 2y + 6

The system of equations above has how many solutions?
(A) None
(B) Exactly one
(C) Exactly two
(D) Exactly three
(E) Infinitely many

2006-12-11 15:54:19 · 14 answers · asked by Amuthan A 1 in Mathematics

2006-12-11 15:50:51 · 2 answers · asked by Lim S 3 in Botany

2006-12-11 15:50:21 · 7 answers · asked by james w 3 in Medicine

Many of you have said you don't believe it is right to just give the answers. It is often better to give the kid a resource where he can find the answer...then have that resource to use in the future. Some complicated questions need some explanation , but, please, if it is a one word answer, let's encourage them to learn where to find answers

2006-12-11 15:49:29 · 7 answers · asked by Anonymous in Geography

Hey can you guys walk me through this problem please::

Water is flowing at the rate of 6 meters cubed/min from a resovoir shaped like a hemispherical sphere with a radius of 13 meters. Answer the following questions using the volume formula V=(pi/3)ysquared(3R-y) when the water is y units deep....at what rate is the water level changing when the water is 8 m deep?

2006-12-11 15:49:29 · 4 answers · asked by Anonymous in Mathematics

ok so 2 things happend 2 me... 5 months ago i was sleeping over my friends house and it was about 4 in the morning and we were sleeping... all the sudden i wake up and some voice in my head was screaming shes stealing ur money so i turn around and look at my backpack and my friends mom was stealing my money from my backpack.. then last night i wake up caz i hear a thud on my wall, then the voice screams in my head its your phone its under ur bed . but i was like did i throw it in my sleep or something? so i look for it and i couldnt find it so i said outloud were is my phone? then my sister answers and says oh i threw it under ur bed... is that weird or what lol what would u call something like that?

2006-12-11 15:49:24 · 20 answers · asked by myspace_fooshoo 1 in Paranormal Phenomena

2006-12-11 15:46:50 · 10 answers · asked by lance c 1 in Astronomy & Space

2006-12-11 15:45:50 · 9 answers · asked by edbiology 1 in Chemistry

2006-12-11 15:45:40 · 4 answers · asked by Anonymous in Astronomy & Space

How many revolutions per minute would a 15-m-diameter Ferris wheel need to make for the passengers to feel "weightless" at the topmost point of the trip?

I don't understand under what conditions a person would feel weightless.

If someone could explain it to me, I'll be able to solve it on my own.

2006-12-11 15:45:35 · 5 answers · asked by Megan M 2 in Physics

2006-12-11 15:44:27 · 2 answers · asked by Smiley :D 1 in Biology

2006-12-11 15:43:39 · 13 answers · asked by ♥michele♥ 7 in Zoology

2006-12-11 15:43:05 · 13 answers · asked by Maria S 1 in Biology

16 wooden hangers were built for US navy airships. The hangers were 300 m long and had a max height of 52 m. imagine a 40 kg block being lifted by a winch fromt he ground to the top of the hangers ceiling. if the winch does 20800 J of work in lifting the block, what force is exerted in them?

2006-12-11 15:42:53 · 1 answers · asked by maggie 1 in Physics

Question:
Let A={n E N|5divides n}
B={n E N|both n and n/5 contain only odd digits}
C={n E N|both n and n/5 contain exactly 2006 dighits} where N denotes the set of all natural numbers.Find the number of elements in the intersection of A,B, and C

I got a weird answer: 3^2004. Is that correct?

2006-12-11 15:42:10 · 2 answers · asked by Anonymous in Mathematics

Mine's made of calcium chloride.

2006-12-11 15:41:45 · 4 answers · asked by espers_cypher 2 in Chemistry

Question for homework that I don't know how to solve it... =/

Say a bromoalkane's molecular formula is given that undergoes E2 reaction and a product forms, how do I know the skeletal structure of the bromoalkane?

Ex.
C6H13Br -- E2 --> 2-ethylbutene
C5H9Br -- E2 --> 3-methylcyclobutene
C8H15Br -- E2 --> 3,3-dimethylcyclohexene

How do I know how to go backward?

2006-12-11 15:41:35 · 2 answers · asked by AUNIDLY 1 in Chemistry

using these letters in the form of a grid. Connecting as in a squiggly word search.
HZLA
TPII
NETL
FGHE
10 pts for 1st correct answer.

2006-12-11 15:39:44 · 7 answers · asked by tulsamum 2 in Biology

titration of a 12.0 mL solution of HCL requires 22.4 mL of 0.12 M NaOH. What is the molarity of the HCL solution?

2006-12-11 15:39:22 · 3 answers · asked by femylatina 1 in Chemistry