Physics - August 2007

It is so depressing when it starts going dark at 4pm. How about we stick a large mirror in space to reflect some light down?

2007-08-14 05:23:09 · 21 answers · asked by Anonymous

2007-08-14 04:56:09 · 9 answers · asked by Anonymous

2007-08-14 04:40:27 · 9 answers · asked by keira s 1

The reason given for sky's bluish color is that it has very less wavelength.But Violet has very less wavelength compared to blue .Then why does the sky does not appear in a violet color but in a blue color?

2007-08-14 04:39:25 · 9 answers · asked by Anonymous

Weight is the gravitational force acting on an object. So if two people are in space experiencing Weightlessness could one of the guys push the other gently with one finger and he would move?

If this is wrong can you explain why.

2007-08-14 03:41:38 · 12 answers · asked by beatme 3

the compass method, the iron filings method, or is there any other method?

2007-08-14 03:41:03 · 5 answers · asked by live.likenotomorrow 2

A 350-kg sailboat has an acceleration of 0.62 miles per second squared at an angle of 64 degrees north of east. Find the magnitude and direction of the net force that acts on the sailboat.

2007-08-14 03:40:34 · 2 answers · asked by Anonymous

A. blue
B. violet
C. orange
D. red

2007-08-14 03:35:09 · 8 answers · asked by Anonymous

If yes, why if the other has much more mass

2007-08-14 03:30:05 · 8 answers · asked by beatme 3

A. angular
B. plane
C. concave
D. convex

2007-08-14 03:25:29 · 5 answers · asked by Anonymous

2007-08-14 02:45:50 · 6 answers · asked by Jstevens 2

2007-08-14 02:33:27 · 15 answers · asked by aiNe_77 1

give proper readings to find the focal length of concave lens using a convex lens

2007-08-14 02:04:23 · 2 answers · asked by arpit v 1

help!

2007-08-14 01:37:32 · 7 answers · asked by Anonymous

Why is it colder on top of a mountain than it is at a beach?

A. The air on the mountaintop is at lower pressure.
B. The mountaintop is closer to the sun.
C. The gas molecules collide less at the beach.
D. The air on the mountaintop is at higher pressure.
E. The gas molecules collide more on top of the mountain.

2007-08-14 01:28:45 · 9 answers · asked by ♥Anonymous♥ 2

A Styrofoam slab has thickness h and density ρs. When a swimmer of mass m is resting on
it, the slab floats in fresh water with its top at the same level as the water surface. Find the area
of the slab.

2007-08-14 01:19:32 · 1 answers · asked by radwan M 1

What surface requires the least amount of energy to travel over.. land or water? Same weight.. flat land versus plat water..

It seems like it would be water.. like it's a no-brainer.. but I have seen some things* that make me wonder.. it seems like there might be more drag from the water surface contacting the boat hull. does anyone have any definitive proof?

* I saw an episode of Mythbusters where they tried to make a boat powered by compressed air.. it was a huge failure.

2007-08-14 01:12:02 · 5 answers · asked by charlie1138 2

can you explain this to me pls.
Velocity = 2450 MHz X 0.122 m

Velocity = 2.99 X 10^8 m/s

(is there any convesion done to get 2.99X10^8???)

2007-08-14 01:01:58 · 5 answers · asked by jayson s 2

A mass M is split into two parts, m and M - m, which are then separated by a certain distance. What raio m/M maximizes the magnitude of the gravitational force between the parts?
Ans: 1/2

2007-08-14 00:03:59 · 3 answers · asked by Allan C 1

I do as science has proved it only time travel backwards is a little tricky.

2007-08-13 23:19:41 · 20 answers · asked by Lily R 6

2007-08-13 23:18:28 · 3 answers · asked by abanti 1

2007-08-13 16:56:19 · 2 answers · asked by SUJAY 1

2007-08-13 16:09:03 · 2 answers · asked by Anonymous

I am heavily into quantum theory and quantum mechanics. Has anyone been able to "control" it? In theory i will be creating the answers you give me therefore this would be a psudo sociological experiment. Also, what are your thoughts on experiments regarding the matter i.e. sensory deprivation etc. Thanks and your welcome...a little joke for myself.

2007-08-13 15:32:40 · 5 answers · asked by Stinknugget 3

2007-08-13 15:17:13 · 14 answers · asked by fxbeto 4

Is it:
red we're dead, blue we're through, yellow we're mellow? or is it :

blue we're goo, and yellow we're jello?

because if i ever need to diffuse a bomb, i would need to know! does anybody know what colour to cut?

2007-08-13 15:12:13 · 8 answers · asked by Constantine 2

If the wind were to stand still then there would be a constant wind outside. Why does the atmosphere spin with the earth? Is this the same concept that the tesla turbine is based off of?

2007-08-13 15:09:04 · 5 answers · asked by techtonick.com 2

if every reaction has an opposite reaction does a train stop if a fly hits it where is de opposite reaction?????????????

2007-08-13 15:08:25 · 10 answers · asked by Micheal N 1

2007-08-13 14:40:32 · 7 answers · asked by ladysosureone 6

I am about to buy a house that has a huge tension cable as a neighbor. I cannot find any serious information about the possible effects.

2007-08-13 14:35:01 · 5 answers · asked by jackie 1