Physics - January 2007

.....temporarily may feel dizzy?

2007-01-20 18:09:34 · 5 answers · asked by clars 1

2007-01-20 18:00:20 · 4 answers · asked by madhu s 1

2007-01-20 17:52:24 · 4 answers · asked by clars 1

What will happen when you connect two batteries together?
What will happen if the internal resistance is high?
What will happen if the internal resistance is low?

Please explain clearly.

2007-01-20 17:48:50 · 4 answers · asked by Anonymous

what does newton's first law predict for the motion of a spaceship in outer space, assuming that its means of propulsion in shut off?

2007-01-20 17:44:34 · 2 answers · asked by clars 1

2007-01-20 17:36:46 · 4 answers · asked by clars 1

A uniform electric field of a magnitude of 8 x 10^3 N/C points in the positive x direction. Find the change in electrical potential between the origin and the points (a) (0, 7.0m), (b) (7.0m, 0), and (c) (7.0m, 7.0m).

(a) (0, 7.0m) is ___ V
(b) (7.0m, 0) is ___ V
(c) (7.0m, 7.0m) is ___ V

2007-01-20 17:19:54 · 4 answers · asked by Anonymous

2007-01-20 16:37:29 · 2 answers · asked by t.arun kumar 1

sound waves generally vibrate in the same place. the vibration has an effect on the nearby molecule and that vibrates and has an effect on the next. but soundwaves with high frequencies also follow the same principles when they CAN travel long distance with the energy they possess

2007-01-20 16:18:59 · 2 answers · asked by Anonymous

It is said by Einstein that nothing can travel faster then light but it is not said that nothing can travel equivalent to the speed of light.
Is it possible for a person to travel in speed of light having a mirror in his hands & looking his own image?What type of image would that be?

2007-01-20 16:16:16 · 8 answers · asked by rajesh bhowmick 2

Please slove:

A diver springs upward with a speed of 2m/s. The diving board is located 5 meters above the swimming pool, how long does it take for the diver to hit the water after leaving the diving board? Also how fast does she hit the water?

2007-01-20 16:06:53 · 4 answers · asked by GSU 1

Please explain:

Using 334 m/sec as the speed for sound and assuming light travels so fast as to be considered instantaneous for this problem, what is the time delay between seeing a flash of lightning and hearing its thunder when the lightning strikes 3 km away?

2007-01-20 16:04:15 · 3 answers · asked by GSU 1

Please explain:

A bullet is fired horizontally at 312 m/sec and when it enters a wooden block, it comes to a rest after traveling 4 cm in the wood. What is the magnitude and direction (relative to its initial velocity) of the bullet’s acceleration?

2007-01-20 16:03:47 · 1 answers · asked by GSU 1

Please explain:

An arrow is launched upward with an initial speed of 20 m/sec, how high (above the point of release) will the arrow travel?

2007-01-20 16:03:05 · 3 answers · asked by GSU 1

Please explain:

A child drops a water balloon (starts at rest) from a bridge 12 meters above a creek below. How long does it take for the balloon to hit the water below? Also what is its velocity (magnitude and direction) when the balloon just hits the water?

2007-01-20 16:01:51 · 1 answers · asked by GSU 1

I understand that it is impossible to reach the speed of light because to do so would, essentially, require an infite amount of energy. If it is impossible to reach the speed of light how is it that light itself can travel at the speed of light? Where does that energy come from?

2007-01-20 15:59:30 · 5 answers · asked by mbmattis2001 1

2007-01-20 15:54:19 · 3 answers · asked by C P 1

proprotional to the object's mass. According to his 2nd law of motion, the acceleration of an object is directly proportional to the force being exerted on it. THerefore, it may be concluded that if 2 objects are dropped simultaneously from the same height, the heavier object, having greater acceleartion, will read the ground first.

Use mathematical equations to either verify or refute the above conclusion.

2007-01-20 14:12:16 · 8 answers · asked by Anonymous

this is for a sixth grade science project

2007-01-20 14:08:59 · 5 answers · asked by BRIAN K 1

is it absorbed or bounces off? help please?

2007-01-20 13:46:33 · 8 answers · asked by ♥ 2

Noticed, on cool cosmos a person show with hand put into plastic (Black) bag. So anyway of disguising yourself from the thermal image?

2007-01-20 13:45:51 · 5 answers · asked by CLIVE C 3

What are the resonant frequencies of wood, rubber, and concrete?

2007-01-20 13:38:46 · 4 answers · asked by blah1 2

I'm so confused! Where exactly do force carriers come from? Do they come from the decay of other particles? If so, how does that cause an interaction? ahhh..

2007-01-20 13:33:07 · 2 answers · asked by Anonymous

Why does light act like it travels in particles

2007-01-20 13:27:16 · 6 answers · asked by Dreama 4 1

Let's assume that my brain is in the *exact* same physical state both before and after I am "teleported" from one place to another. There are two perspectives to consider, mine, and everybody else's. My assumption is that, to myself, I would be "dead", but an exact copy of me would carry one with my life, and thus nothing would seem different to all those around me. What are your thoughts?

Points to consider: imagine teleportation as the "disassemly of matter, transportation of information, then the assembly of matter"

Larger philosophical implications: Imagine the teleportation occurs infinitely slowly, but the pieces of our brains that are teleported are replaced with identically-operating machinery. At what point do we (to ourselves, and not others) effectively stop existing? What kind of implications does this have for brain implants? Is it possible that people who have had brain surgery have "died" (to themselves), but seem identical to us?

2007-01-20 13:25:01 · 2 answers · asked by Anonymous

This is a question that I always pondered about.

In the phenomenon of refraction, light bends away from the normal to make up for the increase in speed when it enters a rarer medium. Is this something really fundamental to physical laws.....

.... or is there a reason for light to show "signs of sentience"?

2007-01-20 13:19:09 · 8 answers · asked by Abhyudaya 6

Is it because the current is used up or the energy is used up. Explain

2007-01-20 13:19:09 · 2 answers · asked by Melissa 2

one example of a water system is a garden hose that waters a garden. Another is the cooling system of an autombile. Which of these exhibits more analogous with that of an electric circuit? Why?

2007-01-20 13:16:38 · 4 answers · asked by Melissa 2

why does anything exist at all ? - why does matter exist?- why does the Universe exist?* what underlies the nature of physical laws ? - why do any laws exist at all?- why do they seem to have a mathematical nature?- in what way is their compulsory operation imbedded in reality?* what determines the nature of the specific laws that in fact govern the Universe ?- why do they have the specific form they do?

2007-01-20 13:04:42 · 3 answers · asked by Anonymous

this is my opinion on the world today.. the way i see it is religon is causeing more wars then it saves people from the Wrath of God... when its the people telling them to Worshop in a temple rather then spend time with Familys on so called religous Holy days.. why is it that something in the past it just not keept in a museum for old and un used things because why do they keep changeing the holy bible books to keep up with the science and technology of the word to day.. and when was it science was Herosey for about 500 years Because it was the Devil..... Lol devil is lived Backwards... um back to the many points im makeing religon is just a cult in the Countrys that are over run by Technology and the places that dont have the Tech stuff thats all they know and dont know its a cult or brain wash.. Because thats all they know with the place and time they liveing in if it was changed over there then RELIGON!!!! should and will be Vanised to all but just Museums they wil stay

2007-01-20 12:47:01 · 4 answers · asked by BKSTYLE 1