Science & Mathematics - 20 September 2007

An accelerometer ( a device to measure acceleration) can be as simple as a small pendulum. Suppose you are flying a small plane in a straight horizontal line and your accelerometer hangs 12 degrees behind the vertical. What is your acceleration?

2007-09-20 15:53:39 · 2 answers · asked by triciawin87 2 in Physics

Can somebody break this down for me step by step so I can learn how to do it?

A major league pitcher can throw a baseball in excess of 41.1 m/s. if a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 17.6 m away from the point of release?

2007-09-20 15:52:09 · 4 answers · asked by yummy_girlscout 1 in Physics

please show work thanks.

2007-09-20 15:51:53 · 4 answers · asked by Dark Fire 2 in Mathematics

in space...or anywhere else, is there such thing as "dark matter"? like a thing of darkness that you can have in a jar or hold in your hand????

2007-09-20 15:51:43 · 3 answers · asked by Anonymous in Physics

Let's continue with the normal frivolities......

At one point in my life I was an expert professional confectioner and cake decorator, so does that mean I was a master-baker?

2007-09-20 15:51:23 · 20 answers · asked by Anonymous in Mathematics

what is the circumference of a circle if the radius is 19 in?

2007-09-20 15:49:56 · 4 answers · asked by Anonymous in Mathematics

Lead(ll)nitrate and hydroiodic acid react to produce lead(ll)iodide and nitric acid?
What was the molarity of the lead(II) nitrate solution?
If 3.50g of lead(II) iodide was obtained by adding excess HI to 150 ml of lead(II) nitrate, what was the molarity of the lead(II) nitrate solution?

2007-09-20 15:49:52 · 2 answers · asked by stranger 1 in Chemistry

2007-09-20 15:49:52 · 3 answers · asked by Moose 4 in Biology

Apparently, since its liquid water, you can ride a boat or something right? My reference links says no? Whaaaa?

What would happen, basically, if you went/landed/drowned/WHATEVER on Jupiter?

(And can you state some interesting facts about Jupiter and all the other planets like Mars and Saturn or something? Just for fun :3 Astronomy is cool)

2007-09-20 15:48:29 · 13 answers · asked by Spectrum 1 in Astronomy & Space

4 answers

2007-09-20 15:46:14 · 5 answers · asked by student 3 in Mathematics

.....decisions, judgements, confirmations & etc. ?
I believe that's were I get all my orders, & etc.
In a family when all kids choose different jobs & one of them who ends up in jail & ... all the time I think it is the orders from
his genitals not his brain !
Is my idea researched by science ?

2007-09-20 15:46:09 · 2 answers · asked by revoltingmuledropedriderfromback 1 in Biology

A rocket used to lift a satellite into orbit undergoes a constant acceleration of 6.25 m/s^2. When the rocket reaches an altitude of 45 km above the surface of Earth, it is traveling at a velocity of 625 m/s. How long does it take for the rocket to reach this speed? Show your work. I really need this tonight, but I'll check this super early in the morning. If anyone knows, please help....thanks a lot!

2007-09-20 15:44:42 · 2 answers · asked by ☺♠JonasJay♫♦ 5 in Physics

Can you solve this math problem its in the system of linear Equations: Substitution: Elimination section.

In Kyotoshi, Japan, the cost of three bowls of noodles and two cartons of fresh milk is 2153 yen. Three cartons of fresh milk cost 89 yen more than one bowl of noodles. What is the cost of a bowl of noodles? A carton of fresh milk?

2007-09-20 15:44:24 · 10 answers · asked by w s 3 in Mathematics

Since it's not a planet, what is it?

Is it a Dwarf Planet?

What is a Dwarf Planet anyways :S

(I got the Dwarf Planet info off some pluto info thingie D:)

2007-09-20 15:42:12 · 13 answers · asked by Spectrum 1 in Astronomy & Space

Stimulus: dog treat
Response: dog drooling

so, the environment is Internal??
and is this a external stimulus??
I'm so confused! I feel like crying....
I would be so happy if you guys helped me out.

2007-09-20 15:40:57 · 7 answers · asked by Anonymous in Biology

Just wanted to test if the average person's reasoning for basic questions is correct...

1) Who was the first person to discover the Earth is round?
2) What causes the Earth's 4 seasons?
3) True or False? When it's summer in the U.S., the Earth is farther away from the sun than if it were winter.
4) What causes the phases of the moon?
5) Before Mt. Everest was discovered, which mountain was the highest?

2007-09-20 15:40:42 · 10 answers · asked by Anonymous in Astronomy & Space

are there any mathematical definitions for any number n being an interger. You know, sort of like the definition of divisibility: a is divisible by 5 if and only if a=5(b) where b is some integer

2007-09-20 15:40:34 · 2 answers · asked by In Testimony Whereof 3 in Mathematics

If a small planetoid in a disk of debris is orbiting around or spiraling in on the Sun, the debris outside of it will be going slower than the planetoid and the debris inside the planetoid will be going faster. As the debris is drawn to the planetoid by gravity, will the incoming debris result in a planet that spins clockwise or counterclockwise and why? I don't have the Physics to evaluate the effects of the Sun's gravity pulling one way on the debris and the planetoid's pulling the other. We're looking down on the system from above of course.
I know that if the whole disk has the same angular velocity that the planet will end up spinning counterclockwise like we do.

2007-09-20 15:39:41 · 3 answers · asked by dukebaker 1 in Astronomy & Space

a. granitic composition
b. andesitic composition
c. ultramafic composition
d. basaltic composition

2007-09-20 15:33:14 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-09-20 15:31:58 · 10 answers · asked by LADY V, 1 in Mathematics

my brother is in desperate need of a science fair topic...
its more like a research topic and not one of those "build a volcano or rocket" type of thing...
its a sophomore level project so any idea will be fine (complex ones involving the use of labs and such is fine too)

2007-09-20 15:30:37 · 3 answers · asked by abc 2 in Other - Science

I think it is ventricular systole....not sure please help

2007-09-20 15:30:19 · 4 answers · asked by Anonymous in Biology

Maria and cindy both arrived early for work. Cindy arrived 23 1/2 minutes earlier than Maria. If the total number of minutes that they were early was 38, find how many minutes each girl arrived ahead of time.

2007-09-20 15:29:32 · 3 answers · asked by dzyldarchitects 2 in Mathematics

A new car manufacturer advertises that their car can go "from zero to sixty in 8 s". This is a description of

a. average speed.
b. instantaneous speed.
c. average acceleration.
d. instantaneous acceleration.

2007-09-20 15:26:18 · 1 answers · asked by ME 1 in Physics

I am stumbed assisting my son with this math problem:

Three missionaries and three cannibals wish to cross a river using a single boat that will hold only two people. If at any time the cannibals outnumber the missionaries, those missionaries will be eaten. How can the crossing be safely made?

2007-09-20 15:25:44 · 2 answers · asked by ruby1976bx 1 in Mathematics

2007-09-20 15:25:20 · 4 answers · asked by Anonymous in Biology

the type of storm im trying to find cannot be one of these:
blizzard, cyclone, hail, hurricane, ice
lighting, monsoon, sandstorm, sleet
snow, squall, thunder, tornado, twister,
waterspout, wind, typhoon, rain.

2007-09-20 15:24:38 · 6 answers · asked by Anonymous in Weather

2007-09-20 15:23:51 · 1 answers · asked by sun_shine 1 in Botany

2007-09-20 15:23:23 · 6 answers · asked by Anonymous in Engineering

2007-09-20 15:22:47 · 11 answers · asked by Anonymous in Astronomy & Space