Physics - January 2007

2007-01-11 13:34:08 · 1 answers · asked by clover w 1

i just asked a black hole question and everyone so for was very nice.it seems i put out the impression i was raging degree educated persons,not so,it just seems only the educated get their thoughts validated.i guess that what becomes of just a 9th grade ed. please exsuse any typos or spelling,just asked a question in politics and was called stupid and a traitor.guess they needed to boost their egos again thanks

2007-01-11 13:24:28 · 8 answers · asked by dougsc950 1

2007-01-11 12:57:45 · 10 answers · asked by veolapaul 5

2007-01-11 12:56:41 · 9 answers · asked by Anonymous

Suppose one had an object capable of passing frictionlessly through the planet and resists all pressure without collapsing. A ball or something. Since we're taught that gravity pulls all things toward the earth, once the object got to the center of the planet would it just hover there? Possibly it's momentum would fire it through the other side of the planet? What does newtonian physics dictate this object would do?

2007-01-11 12:48:49 · 3 answers · asked by little_gibblet 1

please help with this ques. a body of mass 2kg falls from rest and has a k.e of 2000j just before touching the ground.neglecting friction,calculate the height from which the body has fallen.

2007-01-11 12:47:41 · 3 answers · asked by shelly 3

2007-01-11 12:45:00 · 3 answers · asked by Dakota S 1

2007-01-11 12:44:56 · 9 answers · asked by teddybears 3

2007-01-11 12:43:16 · 6 answers · asked by K-Bugg 2

2007-01-11 12:38:05 · 1 answers · asked by teddybears 3

I need a rather clear explanation. Does light have mass?

2007-01-11 12:29:38 · 18 answers · asked by rockability 1

what are things i should do?

2007-01-11 12:28:56 · 1 answers · asked by cool 1

Please I need the answer now.

2007-01-11 12:26:49 · 2 answers · asked by Anonymous

now,they theorize black holes exist right?that every thing pulled in to them is shrunk to nthing right?that they can be as big as a planet or as small as a pin head,and not even light can go in and come out right?well!!!! just what happens to the atoms, moliculesand other matter?iallways thought that if you sqeezed or spit an atom you got an explosion,like atomic! so why dont we see small or large flashes in space.it would at least prove that they exist,other than in the mind of the "therorist".well i have a few therories of my own, like,time and space sta nd like panes of glass if we can find the right frequincey you will be able to pass from one to another.but alas like the black holes i can not prove this is a truth,but unlike the degreed people,just because i say isay this true it does not make so.thank you for letting this uneducated mind have a say on this or any other matter

2007-01-11 12:25:53 · 10 answers · asked by dougsc950 1

The initial pressure in an ideal gas is 1.40 atm when its temperature is 265 K. The temperature is increased to 282 K and the volume is increased to 1.20 times its initial value. Calculate the final pressure.

R = 8.31 J/molK

2007-01-11 12:12:43 · 1 answers · asked by bippidibopiddi 2

Eggdrop project-----> What are the forces acting on the container, what do they do, and why are they there

2007-01-11 11:50:53 · 2 answers · asked by Anonymous

2007-01-11 11:44:19 · 3 answers · asked by Anonymous

2007-01-11 11:40:48 · 7 answers · asked by mrlabc123 2

For example, if a wheel is spinning, is it possible for the direction in which it is spinning to be reversed without ever stopping for a moment?

If so, how?

Is not, why?

2007-01-11 11:31:10 · 8 answers · asked by alohadvd 1

2007-01-11 11:25:09 · 5 answers · asked by Jess 2

If a plane has to dump fuel, from a height of 125m, before landing to avoid a firey crash, How long would it take to for the fuel to fall to the ground?
Im stuck at :
125=0(t) + [(9.8)(t)^2 (1/2)]

I know that I can take out the 0t because it will equal zero not matter what t is. Im having a slight problem with the algebra.

2007-01-11 11:19:46 · 2 answers · asked by Anonymous

tried getting it but got it wrong. have one submission left.

Calculate the wavelength, in nanometers, associated with an electron traveling 90.0% of the speed of light.
_______ nm

2007-01-11 11:02:23 · 1 answers · asked by uldisjj 1

If a plane has to dump fuel, from a height of 125m, before landing to avoid a firey crash, How long would it take to for the fuel to fall to the ground?
Im stuck at :
125=0 (delta t) + [(9.8)(delta t) / 2]

2007-01-11 10:59:14 · 2 answers · asked by Anonymous

At school, and someone brought up something about that we can't physically touch anything, everything has an electromagnetic field, and it repels other objects, so we aren't touching the ground, we are 1 electron away from touching it, and if there was no field, we would merge with the object we touched. Apparently, it's something about physics.

I wanna read about it, but I don't know what it's called, does anyone know what it is?

2007-01-11 10:47:57 · 6 answers · asked by arunforce 3

The cube is 20cm x 20cm x 20cm. Is there any way i can figure this out? I need the Cd for calculating air resistance.
My velocity is 4.42m/s, it is falling on earth, so density is 1.2kg/m3.

2007-01-11 10:37:18 · 1 answers · asked by Henry Chan 1

and 25 minutes of an evening to get home but i do the same route and the same mileage????

2007-01-11 10:30:13 · 5 answers · asked by rhubarb 1

Where does the energy which would other wise be transferred to sound energy go to when a bell is struck in a vacuum? I'm guessing that the bell heats up a little but I'm not sure, can anyone explain this to me?

2007-01-11 10:24:42 · 3 answers · asked by Anonymous

2007-01-11 10:18:22 · 1 answers · asked by mrs. Cabrera 1

So, what different types of atoms are there???

2007-01-11 09:53:20 · 3 answers · asked by Anonymous

The force required to stretch a Hooke's-law
spring varies from 0 N to 23.1 N as we stretch
the spring by moving one end 10.6 cm from
its unstressed position.
Find the force constant of the spring. An-
swer in units of N/m.

part 2
Find the work done in stretching the spring.
Answer in units of J.

2007-01-11 09:41:31 · 2 answers · asked by kavita 1