Physics - April 2007

2007-04-28 03:07:18 · 3 answers · asked by Cookie_monster 1

Do some items drop faster than others and if so why?

2007-04-28 02:52:41 · 17 answers · asked by a t 1

2007-04-28 02:47:02 · 4 answers · asked by rohit_gupta322 2

2007-04-28 02:39:04 · 4 answers · asked by Doris G 4

2007-04-28 02:33:43 · 3 answers · asked by Anonymous

Assume there is a strange tiny planet. Its gravitational acceleration at its surface is exactly 10.0 metres per second per second, and its diameter is exactly 2100 kilometres.

Also, a completely unrelated fact, the "Aliens" are able to consume about 0.4 kg of pretty much anything they want to eat, every minute, nonstop.

Assuming that the density of the planet is uniform, and that orbiting bodies don't significantly affect the planet's gravity, how many years will it take one million "Aliens" to consume one cubic kilometre of the tiny planet?

2007-04-28 02:24:21 · 3 answers · asked by Nick 3

PHYSICAL LONGFORM

2007-04-28 01:39:54 · 16 answers · asked by s1_sarika 1

2007-04-28 01:39:31 · 7 answers · asked by psokullu 2

A. none of these
B. Electron volt
C. Joule
D. Kilowatt
E. Ampere-hour

2007-04-28 01:27:23 · 5 answers · asked by Anonymous

I'm constructing a mobile for a school project, and in a bid to score more marks, I'm thinking of hanging the pieces on a curved beam, rather than a straight beam.

2007-04-27 23:48:31 · 1 answers · asked by danielchander 2

This is a question about old electrical equipment NOT about mythology

2007-04-27 23:24:03 · 3 answers · asked by SPARKFISH 4

Help me on this!!
Fill in the Blank
Please briefly explain ....
Thanks~

[1] In the Periodic Table, the atomic _____ are not whole numbers, because all the mass of ______ are averaged.

[2] The number of protons in the nucleus of I-127 (an isotopes of Iodine) is ______, and the number of nucleon is ______.

2007-04-27 21:53:00 · 3 answers · asked by Nickname 1

drawing a graph of Phase difference of (Pi/4). can I just add to any point on the wave 45 degrees.

But if I will plot a displacement - Time graph, I have to find the corresponding T using the formula (Phase difference = (delta t / T) * 2pi) correct?

2007-04-27 21:49:35 · 2 answers · asked by Anonymous

Or rather, what is the minimum blast from a nuclear bomb? Instead of levelling a city, could you level a football field, or a small room?

2007-04-27 21:37:08 · 4 answers · asked by George M 2

2007-04-27 21:26:11 · 1 answers · asked by JiTZ 1

Does any1 know what 4-D & 5-D r? I looked it up on Wikipedia & Google; however, it was null & void on any info. I didn't find much useful info on 4-D, either :) So, please explain it 2 me (if u can) in scientific, astronomical, &/or phillosophical terms; use as little math apositves (explanations) as possible (I suck @ math & succeed in Language Arts ;)

2007-04-27 21:03:39 · 3 answers · asked by ♠I Did My Time♠ 4

If the second law is only applicable to "macroscopic" systems, what is included in the "microscopic"? Just elementary particles?

If a particle moves back in time, does it's antiparticle move forward? Is that why entropy is always increasing?

2007-04-27 20:55:02 · 2 answers · asked by Bedel 2

Why don't they take the shape of the section of the object that first hits the water? Or do they at first?

2007-04-27 20:49:44 · 4 answers · asked by Roxi 4

2007-04-27 20:44:02 · 7 answers · asked by sagar s 1

My understading of it is the gravitational pull of the Black Hole would accelarate you beyond light speed as it sucked you in.
Is this correct and does it mean you would be traveling at light speed or above?

2007-04-27 20:26:56 · 10 answers · asked by Judas. S. Burroughs. 3

2007-04-27 20:09:10 · 3 answers · asked by pradeep v 1

thanks alot!

2007-04-27 20:07:39 · 3 answers · asked by Aaron A 3

2007-04-27 19:57:34 · 7 answers · asked by leonoveree1994 2

drawing a graph of Phase difference of (Pi/4). can I just add to any point on the wave 45 degrees. or do I have to do like whats on this page http://answers.yahoo.com/question/index;_ylt=AjjrXNDCJZMNvDwDqRTh7zvsy6IX?qid=20070425082943AAgqb6z

2007-04-27 19:37:05 · 3 answers · asked by Anonymous

humanity have acknowledge all inventions from lighter to x-rays and to infrared, and to ultraviolet rays,electromagnetic propulsions and space travel -seems to provide great assistance to humanity-yet, cancer, AIDS, parkinsons,alzhimers have no cure at all??,global warming,wars etc.. so is science missing A LOT from REALITY??

2007-04-27 19:29:32 · 5 answers · asked by tony d 1

In order to climb a 20 step flight of stairs quickly and efficiently is it better to do it one step at a time which means legs climbing 20 times quite fast
or
Climbing the stairs 2 at a time which means its harder work on the legs as you have a higher ascent but you only do this 10 times?

2007-04-27 19:28:58 · 7 answers · asked by RowanH 1

2007-04-27 18:01:23 · 12 answers · asked by Anonymous

3 True and False Questions.

Please explain! Thank You!

[1] Both transverse and longitudinal waves can exhibit diffraction phenomena.

[2] LASER beam travels through a vaccum space faster than microwaves.

[3] Two beams of light, one is yellow and the other blue, go through a glass block. If the refractive index of glass for the yellow light is smaller than that for the blue light, the yellow light should travel faster (than the blue light) through the glass.

2007-04-27 16:39:53 · 7 answers · asked by Nickname 1

Which of the following best describes how stars are form?
A)The two sleds and the dogs will accelerate until the forces in the system balance.
B)The two sleds and the dogs will amntain travel at the same speed.
C)The two sleds and the dogs will decelerate until the forces in the system balance.
D) The two sleds and the dogs will never achieve balanced forces.

2007-04-27 16:33:27 · 3 answers · asked by Anonymous

2007-04-27 16:20:57 · 6 answers · asked by mark l 1