Science & Mathematics - 15 November 2006

2006-11-15 14:49:30 · 5 answers · asked by ♥heartbroken♥ 3 in Chemistry

if a car travels at 20 mph for 2 miles and 40 mph for 8 miles, what is the average rate?

2006-11-15 14:49:24 · 3 answers · asked by sammmm s 1 in Mathematics

Water, Ice, or Wind

2006-11-15 14:49:09 · 5 answers · asked by Justin H 2 in Earth Sciences & Geology

Think in chemistry terms.

2006-11-15 14:48:22 · 2 answers · asked by nc123135 1 in Chemistry

Why is it a theory isn't it proven?

2006-11-15 14:48:17 · 11 answers · asked by Anonymous in Physics

2006-11-15 14:47:33 · 3 answers · asked by goring 6 in Mathematics

2006-11-15 14:46:37 · 7 answers · asked by plz help me 1 in Biology

Details:
1. I'm not a Prilosec Represenative or a user and I don't make any money from the sale of Prilosec OTC.
2. Prilosec can be bought without a prescription.

2006-11-15 14:45:48 · 7 answers · asked by fordfan444 2 in Medicine

round the following numbers to the nearest tenth:

135.1849

59.524811

854.55671

116.1288

5.4431084

2006-11-15 14:45:08 · 4 answers · asked by Caroline M 2 in Mathematics

Looking at the formula of Pi, we understand that it is a non-repeating non-ending number. Thought from the simple formula of permuations, we understand that there are only so many combinations of numbers available.

I.E. with numbers (1,2,3,4,5) we can only form 120 possible combinations, using the formula (1x2x3x4x5). So taking the possible numbers (1,2,3,4,5,6,7,8,9) shouldn't there only be 362,880 possible combinations for the number string in Pi, before it repeats itself wholy or partially?

Let me know,

Litho

2006-11-15 14:44:59 · 9 answers · asked by Lithobid 2 in Mathematics

2006-11-15 14:43:58 · 2 answers · asked by goring 6 in Physics

How did the discovery of Neptune differ from the discovery of Uranus?

Also

Why is Pluto being strongly challenged as being a planet?

2006-11-15 14:39:15 · 2 answers · asked by Kristen P 2 in Astronomy & Space

How did he influence chemistry? I'm not looking for a bio on him, just..... what did he do to influence chem?

2006-11-15 14:38:54 · 1 answers · asked by sillygoose08 3 in Chemistry

I need help with a question.

1) Lauran decides to build a storage shed for his stuff. He makes a drawing of the shed using a scale of 0.5 inch : 1 foot. If She wants a window in the shed, and decides it will be 2 feet wide, how wide should the window be in her scale drawing.

2) Margret suggests to Lauran that the floor of the shed in her scale drawing shuld be 12 inches by 18 inches. What would the real demensions of the floor be? [Use the same scale as problem 1]

2006-11-15 14:38:41 · 3 answers · asked by Xiao 3 in Mathematics

2006-11-15 14:38:30 · 5 answers · asked by princess 1 in Medicine

I have one equation I can't seem to solve. Maybe I'm just tired and making a simple error but I keep getting a negative and you can't square root those.
The equation is 2x^2 - x - 2 = 0

2006-11-15 14:38:24 · 6 answers · asked by Teh Link 1 in Mathematics

2006-11-15 14:37:39 · 3 answers · asked by Johnny C 1 in Mathematics

How does the study of meteorites and asteroids contribute to the understanding of the formation of the planets?

Also

Where is the Asteroid Belt located in the solar system and what does it look like?

2006-11-15 14:37:12 · 3 answers · asked by Kristen P 2 in Astronomy & Space

An ordinary light bulb consumes 40 W of power. Through what height could a 1000-N object be lifted expending the same amount of power for 6 hours?

a. 860 m
b. 360 m
c. 720 m
d. 650 m

2006-11-15 14:36:46 · 2 answers · asked by Banana28 1 in Physics

Mom placed some cookies in a jar. Charles went to the jar and had 1/4 of the cookies. Ashley had 1/3 of the cookies left over by Charles. Dad went and had 1/2 of the cookies left over by Ashley. When Mrs. Kim went to the jar there were 2 cookies left. How many cookies did mom put into the cookie jar???

Please explain as if u were teaching a 2 yr. old because I'm sort of stupid in Math!!! Also explain throughly what u did!!!

2006-11-15 14:35:56 · 10 answers · asked by yourbiggestfan:) 4 in Mathematics

Can someone please show me How to find points for this equation

f(x)=3+log2 X

2006-11-15 14:34:05 · 2 answers · asked by Anonymous in Mathematics

If Gina leaves now and drives at 66 km/h, she will reach Alton just in time for her appointment. On the other hand, if she has lunch first and leaves in 40 minutes, she will have to drive at 90 km/h to make her appointment. How far away is Alton?

Also please try to explain on how to do it cause I have a test tomorrow :(

2006-11-15 14:32:34 · 4 answers · asked by Anonymous in Mathematics

Just wondering how long marijuana shows up on a hair follicle test, and is there any ways to speed up the time?

2006-11-15 14:30:53 · 4 answers · asked by Anonymous in Biology

How large a force is required to accelerate a 1600 kg car from rest to a speed of 25 m/s in a distance of 200 m?

a. 1600 N
b. 0 N
c. 200 N
d. 2500 N

2006-11-15 14:30:15 · 2 answers · asked by SMS 1 in Physics

this is the problem...


given: B is the midpoint of (line segment) AC
prove: AB + CD = BD
then it shows a picture of a line with points A,B,C, and D..in that order evenly spread out.

I HATE PROOFS!
someone please help me!!

2006-11-15 14:30:00 · 5 answers · asked by naome2009 3 in Mathematics

An 79.0 kg spacewalking astronaut pushes off a 660 kg satellite, exerting a 120 N force for the 0.420 s it takes him to straighten his arms.

2006-11-15 14:29:01 · 1 answers · asked by Anonymous in Astronomy & Space

(13b-2) - 3(4b+4) = -3

2006-11-15 14:28:18 · 13 answers · asked by hardcore_3001 2 in Mathematics

9/11x + 1/2 = 3/7 - 2/11x + 3/7

2006-11-15 14:25:26 · 5 answers · asked by <3Aja*Marissa*Ashley<3 2 in Mathematics

Hey people! I really need your guys's help (I know, a made up phrase) and I hope you guys have answers....and possibly links as to where you found this out (?).

2006-11-15 14:25:05 · 3 answers · asked by Anonymous in Biology

If you were in a lift and the cables broke at the 5th floor and you managed to 'jump' inside the lift (elevator) a nano-second before it hit the bottom would you survive with no injuries because you were mid-aire for that nano-second while the base of the lift (elevator) hit the ground? It's a question that's bugged me for all time, serious answers only please.

2006-11-15 14:24:19 · 13 answers · asked by Anonymous in Physics