Science & Mathematics - 8 December 2007

anyone help me but simply, because i am not math. boy i am chem.boy

2007-12-08 13:15:23 · 3 answers · asked by Anonymous in Mathematics

2007-12-08 13:11:45 · 6 answers · asked by Roel R 1 in Earth Sciences & Geology

A stone is thrown straight up from the edge of a roof, 675 feet above the ground, at a speed of 20 feet per second.
A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 3 seconds later? _____________feet
B. At what time does the stone hit the ground? ___________seconds
C. What is the velocity of the stone when it hits the ground? ____________feet/second

2007-12-08 13:10:49 · 3 answers · asked by Anonymous in Mathematics

2007-12-08 13:08:43 · 15 answers · asked by aeytei 3 in Mathematics

A jet needs to attain a speed of 206 mph to take off. If it can accelerate from 0 to 206 mph in 34 seconds, how long must the runway be? (Assume constant acceleration, and give your answer in feet.)

2007-12-08 13:08:43 · 2 answers · asked by Anonymous in Mathematics

2007-12-08 13:08:37 · 3 answers · asked by snakker2k 6 in Medicine

A stone is dropped from the edge of a roof, and hits the ground with a velocity of -175 feet per second. How high (in feet) is the roof?

2007-12-08 13:07:05 · 1 answers · asked by Anonymous in Mathematics

I'm working on creating my own problems for math class, and I need to see if this works out.

18R - 56.7 = 105.3

Solve for R.

What do you get?

2007-12-08 13:06:40 · 18 answers · asked by Anonymous in Mathematics

Does
E=mc^2
mean that energy has mass?

2007-12-08 13:06:28 · 8 answers · asked by ilovethechub 2 in Physics

can't figure it, I must have forgot something, thanks

2007-12-08 13:05:36 · 1 answers · asked by Anonymous in Mathematics

For each of this:
* squid lobster
* american oyster
* venus fly trapplant
* blue mussel

Give me please name of their:

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Subspecies

2007-12-08 13:05:01 · 1 answers · asked by vica 4 in Biology

2007-12-08 12:59:44 · 3 answers · asked by TomatoMug 3 in Zoology

In the WHOLE world what percent of people have innie belly buttons, and what percent of people have outies? I've always wanted to know! Thanks for the help!

2007-12-08 12:58:25 · 3 answers · asked by "ThE BiG SaNd" 2 in Other - Alternative

2007-12-08 12:56:51 · 2 answers · asked by mconversino 2 in Geography

Right now in Illinois, its freezing and icy outside. The weather is calling for an ice storm. Is it warm outdoors where your are?

2007-12-08 12:56:35 · 3 answers · asked by happydawg 6 in Weather

what does it measure?
the amount?

2007-12-08 12:54:20 · 15 answers · asked by KJDKLJ 1 in Chemistry

2007-12-08 12:48:41 · 3 answers · asked by kandi koolaid 1 in Geography

ok, so i asked one of my friends if she new the capital of Iowa and her responce was "whats Iowa???" so i said "it's a state" and she didn't know that so i asked her if she could name the fifty states and she could only name 5-10 states and also she never heard of georgia, new mexico, colorado, rhode island, north & south dakota, ect.
also i told her west virginia so she asked "is there a south virginia???"
i told her "what about montana??? u know hannah montana???" and she said, "i thought that was a city???"
ok, now here's the piont, i now that a lot of people can name the fifty states, but how many capitals do you know???

2007-12-08 12:48:10 · 11 answers · asked by Carwash Girl 2 in Geography

2007-12-08 12:42:19 · 5 answers · asked by carpcrc 1 in Geography

I just don't have any idea what I want to with my life. When I do decide what will it be? Thanks!!

2007-12-08 12:41:28 · 11 answers · asked by Anonymous in Other - Alternative

2007-12-08 12:36:42 · 3 answers · asked by MareK D 1 in Mathematics

Physicist, quantum theorist, cosmologist.
Can someone explain to me what these are?
What has he done?

2007-12-08 12:35:59 · 7 answers · asked by Anonymous in Physics

or what things contain chromium?

2007-12-08 12:35:55 · 3 answers · asked by lismithly 2 in Chemistry

2007-12-08 12:35:09 · 1 answers · asked by MareK D 1 in Mathematics

A skier starts from rest at the top of a hill that is inclined at 11.1 degrees with the horizontal. The hillside is 174.8 m long, and the coefficient of friction between the snow and the skis is 0.067. At the bottom of the hill, the snow is level and the coefficient of friction is unchanged.
The acceleration of gravity is 9.81 m/s2
How far does the skier move along the horizontal portion of the snow before coming to rest? Answer in units of m.

Thanks for any help! :)

2007-12-08 12:31:16 · 2 answers · asked by Catalina 2 in Physics

2007-12-08 12:30:44 · 10 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-08 12:29:38 · 21 answers · asked by Ranger 97 3 in Geography

I have a reason for believing it can , only after a few answers will I attempt to tell you why i ask.

2007-12-08 12:26:24 · 21 answers · asked by Anonymous in Biology

It became apparent to Watson and Crick after completion of their model that the DNA molecule could carry a vast amount of hereditary information in its

a. sequence of bases.

b. phosphate-sugar backbones.

c. complementary pairing of bases.

d. side groups of nitrogenous bases.

e. different five-carbon sugars.

2007-12-08 12:19:08 · 4 answers · asked by Cass 1 in Biology

Two masses are 2.9 kg each. The first mass is moving with a velocity v1 immediately before colliding with the second mass, which is suspended by a string of length 1m. The 2 masses are stuck together as a result of the collision. The compound system then swings to the right and rises to the horizontal level. The acceleration of gravity is 9.8m/s/s.

I drew a diagram for this problem, which can be found at http://img363.imageshack.us/img363/6962/physicssv4.jpg

Find the kinetic energy of the compound system immediately after the collision. Answer in units of J.

Any help is greatly appreciated! Thanks!

2007-12-08 12:18:52 · 2 answers · asked by thiscouldbetricky 1 in Physics