Science & Mathematics - 15 October 2006

Side lengths are 26, 10, 17.

2006-10-15 12:59:09 · 7 answers · asked by Anonymous in Mathematics

2006-10-15 12:58:44 · 8 answers · asked by Nurse2b 1 in Biology

You are an avid skateboarder and just skated down a ramp. You want to find the distance you traveled. The height of the ramp at its tallest part is 40 inches and the horizontal length is 81 inches. Calculate the distance, to the nearest whole inch, you traveled down the ramp.

2006-10-15 12:58:27 · 6 answers · asked by Anonymous in Mathematics

a ball thrown horizontally at 25m/s travels a horizontal distance of 50m before hitting the ground.

2006-10-15 12:57:06 · 2 answers · asked by jewlie j 1 in Physics

I mean come on! They're open til like forever in the morning but the dining room is closed!

2006-10-15 12:56:26 · 7 answers · asked by Fun and Games 4 in Astronomy & Space

help plisss im a eight grader but im taking a 9th grade science class...im supposed to do a science project adn im supposed to give my teacher a hypothesis and a problem statement tommorow but i have no idea on wat to do it about! im working with my friend and her idea was to do the project about which brand of chocolate gives u more pimples..wat o u guys think!?

2006-10-15 12:55:20 · 3 answers · asked by Anonymous in Other - Science

2006-10-15 12:54:48 · 4 answers · asked by Fun and Games 4 in Astronomy & Space

2006-10-15 12:53:17 · 2 answers · asked by metin 3 in Biology

2006-10-15 12:52:38 · 3 answers · asked by Lizabeth 3 in Engineering

I need help with some of my Biology homework... these are the questions. I know they're not very hard but...

What is the biosphere? Is it the same as the ecosphere?

What portion of the atmosphere, hydrosphere, and lithosphere permit life to exist?

Define population, community, and ecosystem ecology and explain how they are distungished from one another, yet integrated. Give two examples of each.

2006-10-15 12:50:06 · 6 answers · asked by Lynna J 4 in Biology

I need to know for a BIG quiz tomorrow...

2006-10-15 12:49:59 · 2 answers · asked by Nicki S 1 in Biology

its a physics question and I want to know if he is going to hit the barrier and what is the max. speed to no hit the barrier

2006-10-15 12:49:24 · 2 answers · asked by dm 2 in Physics

1
11
21
1211
3112
132112
312221

2006-10-15 12:48:45 · 2 answers · asked by gotslayer 2 in Mathematics

what is the tension between the two boxes and what is the acceleration of both boxes? What will be the total forces on all objects?

2006-10-15 12:48:41 · 2 answers · asked by Anonymous in Physics

2006-10-15 12:46:40 · 5 answers · asked by Fun and Games 4 in Zoology

2006-10-15 12:46:16 · 2 answers · asked by frogzard14 1 in Biology

How could they coexist with eachother and both of them make sense?

2006-10-15 12:43:34 · 10 answers · asked by Anonymous in Other - Science

2006-10-15 12:39:06 · 22 answers · asked by SCOTT M 1 in Zoology

My stupid science teacher likes to give us homework that doesn't even have answers in our book or anything then she wont help us. This stupid crossword puzzle has me stumped! I need:
1. structure that converts solar energy into chemical energy
(- - - - - - - - - s -)
2. Tiny structure that performs a specialized function in a cell
(o- - - - - - - -)
3. Large Dark structure that contains the chromosomes
(- - - - - - s)

Any help at all would be greatly appreciated...even if it's just a website with some information.
God Bless
-Krys

2006-10-15 12:37:37 · 5 answers · asked by Krys 1 in Biology

I seen a picture of one but it didn't look real to me.

2006-10-15 12:37:33 · 5 answers · asked by Anonymous in Zoology

2006-10-15 12:30:41 · 2 answers · asked by Anonymous in Biology

How did old water fountains, such as the ones in Rome or other places in Europe, spray water before they had pumps powered by electricity?

2006-10-15 12:29:48 · 5 answers · asked by Johnny Guano 3 in Engineering

I have been racking my brains with no success. How do i do these ;(?

Directions: Use following system of equations for exercises.
{4x - 10y = -3
{.x + 12y = 3.5

1) If you want to solve the system by eliminating the x terms (with addition), by what would you multiply the second equation?

2) If you want to solve the system by eliminating the y terms (with addition), by what would you multiply the first equations?

3) What is the value of x in the solution? enter your answer as a decimal.

4) What is the value of y in the solution? Enter your answer as a decimal.

2006-10-15 12:28:51 · 6 answers · asked by udienowslave90 1 in Mathematics

In microsoft excell a person can add and divide and other math. problems, but I have not found an easy way to understand the "if" command : "if" not greater than or less than. Can someone help me find the answer, or instructions?

2006-10-15 12:25:56 · 2 answers · asked by tito tito tito 1 in Engineering

For the reaction below, Kc = 0.534 at 700 degrees Celsius. A mixture of 0.250 moles of CO and 0.450 moles of H20 are heated to 700 degrees Celsius in a 10.0 L container. Calculate the concentrations of all four species when equilibirium is reached.

H2 + CO2 ---> H20 + CO

okay plz check my answer and do it and see if you get the same if you can. Also I think the significat figs are right...but not sure

first I got the Molarity of CO - .250 moles/10L = .025M and
H20 .450 moles/10L = .045 M

next I did the ICE method to come up with the problem (.025-x)(.045-x)/x^2=0.534

I work this out to get it equal to 0 and it looks like:
.466x^2-.070x+.0011=0

should be be .001125?

I use the solve function on my calculator, And this gives me x=.018 so, if everything is correct then the concentrations should be:

CO = .025-.0183 = .007
H20 = .045-.0183 = .027
H2 =.018
CO2 = .018

How does this look? Just want to know that im doing this right...Im not sure if x should be .018 or .0183 Thanks!

2006-10-15 12:25:21 · 2 answers · asked by Anonymous in Chemistry

2006-10-15 12:24:41 · 7 answers · asked by louise 2 in Biology

2006-10-15 12:24:20 · 8 answers · asked by Fun and Games 4 in Astronomy & Space

Per Big Bang theory, backround microwave radiation is em radiation which has decreased in frequency rather drastically, from very high (far in excess of x-ray freqs, for example) to very low (i.e. microwave freqs) through an estimated time period of roughly 12-18 billion years (also based on Doppler effect QUITE uniquely and exclusively interpreting or "explaining" observed red-shifts), yet red-shifted light emitted also several billions of years ago from distant galactic starlight "cools" by not even a single wavelength in frequency through all that time, not to mention space? I seriously doubt it, and yet I take my medication and see my therapist regularly, so what gives, Bill Nye, the Science Guy? If experts are trying that hard to avoid plural variables (other than Doppler effect, such as "cooling" or "aging") in a single equation, I certainly don't blame them, but I can't go so far as to excuse them, either, can I?
Indeed, can anyone who sees the emperor's "new clothes"?

2006-10-15 12:22:38 · 10 answers · asked by Anonymous in Physics

I am trying to build a pneumatic pumpkin laucher for my farm as an attraction, I need something that can at least shoot a 5 pound pumkin 100 ft, any websites with information, or ideas?

2006-10-15 12:19:16 · 6 answers · asked by indrul1 3 in Engineering

2006-10-15 12:18:01 · 4 answers · asked by STORMY K 3 in Geography