Physics - December 2006

and a ball is dropped down the hole, what would happen?

2006-12-25 15:46:54 · 13 answers · asked by mynaamynmuil 2

2006-12-25 15:05:15 · 5 answers · asked by ncman372000 2

I get thinking harder and harder on science every time I don't understand something. AND do, elements are made out of atoms, which consist of protons, neutrons, and electrons... BUT, what makes up them? What makes an electon's mass so much smaller than a proton's mass? WHAT IS the string theory

2006-12-25 13:11:04 · 7 answers · asked by Upon this rock 3

THANKS to those who are answering to all my electron questions (see I got started on this topic because I was studying photosynthesis, and how electrons need "special carriers" to be transported, so that got me thinking about electrons) anyway, why, in basic terms, do high-energy electrons seem to be further away from the nucleus?

2006-12-25 13:06:13 · 6 answers · asked by Upon this rock 3

what is the best way to make a thermometer warmer! other than a lightbulb! Thanks! It's urgent. Don't ask wy, it just is!

2006-12-25 12:21:42 · 15 answers · asked by Anonymous

... i stand right next to a traffic light which we define as point B
and a car is approaching from a distant point A

we EXCLUDE mass and momentum
we define that the car accelerates and brakes IMMEDIATLY
we have PRECISE measuring equipment faster than the eye

we define this to be a TESTBED-situation and not reality, cause i'm fully aware that this can't happen for a couple of reasons.

but WHAT would I observe if....

The car suddenly appears in A
a second later accelerates
travels
stops at B
and disappears again one second later.

what do I observe with the speed of the car being:
1. 100 mph
2. 1/2 the speed of light
3. the speed of light (this is tricky i guess)
4. twice the speed of light (and this is what i really die to know)

hey and folks be so kind and don't explain to me the basics of relativity .. its nothing new to me ...
sooo what do i observe especially in 3 + 4 ?
oh and it's not a FORD !!

2006-12-25 11:11:37 · 6 answers · asked by blondnirvana 5

While exploring a sunken ocean liner, the principal researcher found the absolute pressure on the robot observation submarine at the level of the ship to be about 413 atmospheres. The density of seawater is 1025 kg./m^3
a. Calc. the gauge pressure p sub g on the sunken ocean liner.
b. Calc. the depth D of the sunken ocean liner
c. Calc. the magnitute F of the force due to the water on a viewing port of the submarine at this depth is the viewing port has a surface area of 0. 0100 m 6^2
SUppose the ocean liner came to rest at the surface of the ocean before it started to sink. Due to the resistance of the seawater the sinking ocean liner then reached a terminal velocity of 10. 0 m/s after falling for 30 seconds.
Deter. the magnitude a of the average accel. of the ocean liner during this period of time.
e. assume the accel. was constant, calc. the distance below the suface at which the ocean liner reached this terminal velocity
Calc. the time it took to from the surface-bottom.

2006-12-25 10:56:56 · 1 answers · asked by Kitana 2

1. When walking barefoot around the house,a girsl notices that the tile floor feels colder than carpeted portions.
2. After sunbathing on a beach, the water in the ocean feels very cold upon entry.

4. A person who is not ill can detect if you have a fever by placing his or her hand on your forehead.
5. You can't tell if you have a fever by feeling your own forehean.
6. After cinubg indoors in the winter tine, the room fells very warm at first, later it doesn't feels as warm.
7. Water in lakes or the ocean does not feel as cold at night as it did during the daytime.
8. Areas sheltered from the wind feel warmer than windy places, even though the air temperature is the same.
9. Experienced outdoors people know the value of keeping their socks and footweaer dry. They remain comfortanle during cold weather while a person with wet feet if chilled.
10

2006-12-25 10:46:35 · 5 answers · asked by Kitana 2

Perspective. Remember Special Relativaty

2006-12-25 09:56:49 · 12 answers · asked by Dr Karl 1

shouldn't the distance of the image depend on the distance of the object? (1/f= 1/di + 1/do) so why does the light focus at one point, and not even a focal plane since all light entering the eye isnt parallel to the principle axis.

2006-12-25 09:45:47 · 7 answers · asked by doverbeach 3

do they? No referals to other sites please.
I couldn't give a damn, much, although I have an opinion; I'm a spectator,but it looked like magic to me that they fell at freefall speed, no energy being diverted to other observed phenomena such as portions of the building going "up" as well as down.
There's a Noble prize waiting for someone who can explain this phenomenon, it's not in my gift, but I would lobby to nominate a sustainable hypothesis, and sure as hell you'd get it if you could explain. And a congressional medal probably.
ps. equal and opposites in free space considering gravity is something ruled out by my sixth graders.

2006-12-25 09:35:33 · 10 answers · asked by hog b 6

If so what hapens when it does?

2006-12-25 08:23:46 · 5 answers · asked by yo yo ma 2

i was in a bathroom with mirrors on both sides, and it got me thinking. what would happen if there was nothing in between them. if we could see it, what would we see? is there any way to see this?

2006-12-25 08:17:00 · 14 answers · asked by Anonymous

2006-12-25 07:24:31 · 10 answers · asked by Zefram 2

And what is the distance btw the nearest star and earth in light year and km?

2006-12-25 06:38:02 · 5 answers · asked by samiztech1 1

I've always wondered how people like einstein, bell, ford etc,
Come up with the concept of an idea that isnt was'nt real and produce a working model of their idea like the car or phone.

Now we have concepts like teleportation. Are people like this born to invent?

2006-12-25 06:07:38 · 11 answers · asked by Anonymous

The position of a particle is given by s=4t^3+3t^2+5 Where s is in metres and t in seconds
Determine the time 't; and acceleration 'a' when velocity 'v'=0

2006-12-25 04:47:53 · 4 answers · asked by nuclearmc2 1

and what size and shape was the Uranuim in the bomb the fell on Japan

2006-12-25 04:37:50 · 6 answers · asked by Anonymous

2006-12-25 04:36:33 · 9 answers · asked by Anonymous

2006-12-25 03:19:30 · 4 answers · asked by Bif T 1

its said both newton's 1st n 3rd laws can be derived from the second law ...i have figured out for the first law...but what about the third one...everytime i try to prove it,something outsied the fundamental law comes in...

see,...alst time i asked a physics Q,some ppl answered wrongly...plz dont do that...answer only if u know it for sure...or u guess it can be right--i have no problem with that...we have to go wrong to straighten oursleves!

2006-12-25 03:05:16 · 8 answers · asked by catty 4

2006-12-25 02:46:46 · 7 answers · asked by PCMCPPE 1

I know what they are, but I can't seem to understand how to use them or measure them. Could you provide an explanation?

2006-12-25 02:32:04 · 9 answers · asked by Anonymous

All factors being the same: kind and amount of liquid, ambient temperature(obviously it would have to be at or below the freezing temp. for that liquid), humidity; etc. The only difference being air movement. I believe so, because the liquid would lose heat faster due to the wind/air movement.

2006-12-25 02:08:58 · 3 answers · asked by Anonymous

2006-12-25 01:54:48 · 12 answers · asked by sanjeeva 1

2006-12-25 00:50:44 · 7 answers · asked by hurricane yahoo 1

2006-12-24 23:47:11 · 8 answers · asked by ahopai 1

Thought is considered as fifth dimension as the fourth dimension, "time" gets desolved in it.
Each lower dimension desolves it into its next higher dimension.
Like volume starts moving when time is added.
A surface looses its identity when becomes part of a volume.
A dot gets neglected when becomes part of so many other dots and produce a line etc.
please comment.

2006-12-24 23:14:15 · 9 answers · asked by Ishfaq A 3

According to opthalmology there are two types of spectacle lenses.SPHERICAL and CYLINDERICAL. let me know the charecteristiuc sof thse lenses. When we placed the spericl lens under a source of light its obtained image is CIRCLE without change in AXIS i.e 180. When we placed the Cylinderical lens under a source of light its obtained image is ELLIPSE with chang ein axis. How to get a stable POWER of THE CYLINDERICAL GLASS wit change in axis?

2006-12-24 22:47:23 · 1 answers · asked by sriram s 1

temperature of human skin is about 37 degree celcius

2006-12-24 20:32:41 · 5 answers · asked by nick 1