Physics - July 2007

a. less than its weight
b. more than its weight
c. its weight
d. zero

2007-07-22 14:20:51 · 4 answers · asked by eastfieldgiirl04 1

i was thinking gravity?

2007-07-22 13:37:21 · 4 answers · asked by Anonymous

how do u make a time machine

2007-07-22 12:58:31 · 20 answers · asked by ♥miley fan♥ 1

this is a really philosophical question and really complicated too. me and my friends thought of this just talking. we have things like the speed of sound, light, and other stuff like that, but what is the speed of time?

2007-07-22 12:47:28 · 14 answers · asked by spiffwalker 2

I have a machine with 3 wheels 120 degrees apart from eachother, basically making an equilateral triangle. when this machine runs you put a baseall on top of these 3 wheels, and the wheels spin in certain ways to make the ball rotate in 3 different directions. Right now I have 3 very strong motors connected to these wheels that spin the ball. I am now trying to make a prototype that will be economical and need to figure out how strong these motors need to be at minimum. How should I figure this out. Is there some calculations I can do or, is it just going to be trial and error?

2007-07-22 12:16:16 · 1 answers · asked by JoeSchmoe 2

i dont know if im right but,i believe the first is a straight line,2nd is a flat square,3rd is a square that has length,width,and height.4th is,err,forgot.and people say that there is a 5th dimension thats sometimes called crunching?? =_=' i dont think i have it right....xD

2007-07-22 10:58:47 · 7 answers · asked by Anonymous

2007-07-22 10:18:02 · 4 answers · asked by Anonymous

also, why doesnt the food get warm on the inside?

2007-07-22 09:35:04 · 10 answers · asked by yeeaahhbuddy 2

haha

2007-07-22 09:32:34 · 5 answers · asked by Anonymous

Obviously electricity is the flow of electrons. When a lightning bolt hits the ground, what happens (on an atomic level) that allows the air the electricity travels through to all of a sudden conduct electricity? Is this a plasmic state since the air is superheated? Thanks for your help!

2007-07-22 08:50:21 · 3 answers · asked by justask23 5

A 0.20-kg billiard ball traveling at a speed of 15 m/s strikes the side rail of a pool table at an angle of 60o. If the ball rebounds at the same speed and angle, what is the change in its momentum?

2007-07-22 08:46:14 · 3 answers · asked by Anonymous

That We Are All Upside Down & When We See Summthing Our Brain Transfers It Backwards.

I Overheard My 5th Grade Teacher Telling Another Student That.

Could It Be Truee?

2007-07-22 07:58:41 · 7 answers · asked by ♥♥KimmyCup(: 1

2007-07-22 07:54:07 · 5 answers · asked by Speed Ski 1

I watched the moon walking footage form the Apollo missions and I have a simple question: I don’t understand why the dust or fine sand always falls immediately to ground while the astronauts which are much heavier have to deal with the lesser gravitation. Isn’t this mass related: the heavier the faster one should drop (Newton) and therefore for the dust with less mass and gravitation it should take much longer ? Just curious? Note I haven’t made my mind up what I should believe about the whole thing. This is a scientific question, ok!

2007-07-22 06:56:40 · 4 answers · asked by Martin D 1

does it last any longer

2007-07-22 05:32:35 · 5 answers · asked by STORMY K 3

2007-07-22 05:25:53 · 6 answers · asked by neochocolate27 2

HOW IMPROVEMENT OF HANDWRITING

2007-07-22 05:20:38 · 19 answers · asked by Anonymous

I kinda need a book or something I can use at home... I'm pretty sure that my highschool doesn't teach quantum physics to 10th graders. Oh, and it needs to be cheap... I'm a minimum wage worker... sort of...

2007-07-22 04:47:30 · 7 answers · asked by rokkon 3

2007-07-22 04:34:15 · 2 answers · asked by Anonymous

It's really buggin me!

2007-07-22 04:23:46 · 18 answers · asked by Anonymous

and what are Newton's three laws of motion?

2007-07-22 04:20:36 · 4 answers · asked by Anonymous

The outdoor rainbow experiment is explained below
Fill the glass with water and place the mirror in it face up at a 45º angle, coming about halfway out of the glass. Place them in strong sunlight coming as straight down as possible. (Do this outside at noon if you need to.) Position the glass so that the sun rays go through the water and hit the mirror. Hold the white paper vertically off to one side, so the seven colors of the rainbow are produced on it.
b. Now stir the water gently with the pencil and watch what happens on the paper or wall. What happens? Can you think of a reason why?

2007-07-22 03:52:06 · 3 answers · asked by olu 1

What happens when an infinite force is applied to an infinitely unmovable object?

2007-07-22 03:51:59 · 4 answers · asked by notsomeguy00000 1

If I were in an elevator that were free falling, why would the normal contact force of the floor on me decrease resulting in a feeling of weightlessness?

2007-07-22 03:50:22 · 5 answers · asked by Mandél M 3

2007-07-22 02:21:39 · 6 answers · asked by samuraihero1992 2

2007-07-22 02:05:09 · 5 answers · asked by kanisha_cutejune 1

When I stop my car at a traffic junction, watching out for oncoming traffic, I judge in a split second if it is safe or not to cross the road. This judgment includes the acceleration of my own car and the varying speed of approaching traffic. What would a workable formula be to determine this theoretically? I there is the basic formulas available but it does not answer my question completely

2007-07-22 00:59:38 · 2 answers · asked by Anonymous

I'm looking for a book that best explores the philosophical implcations of modern physics (Quantum Theory, Relativity, etc) in straightforward terms.

Not too dumbed down though. I would like something that's challenging but accessible.

ty

2007-07-21 23:17:38 · 4 answers · asked by tuthutop 2

i want know the answer from the morphology point of view

2007-07-21 21:57:32 · 2 answers · asked by erick 1

sOME Genius..

Please help my big bro. He is in a fix!.. I suck at math.

20points for the correct answer.

2007-07-21 21:23:38 · 2 answers · asked by Anonymous