Physics - July 2007

say if we invented a machine that could make a gust of wind as fast as the speed of light could you blow the light away, examples a laser beam could you make it turn or something?

2007-07-08 03:34:38 · 4 answers · asked by Anonymous

What has 24 got to do with anything? I understand 365 and Sirus, but time is the one constant. The only sure thing in life is the passing of time. Shouldn't it be scientifically measured?

2007-07-08 03:20:51 · 8 answers · asked by Anonymous

In 5 seconds, a dog accelerates to its max speed, then maintains that speed for 10 seconds to reach his trainer, who was 50 meters away from the starting point of the dog. What was it acceleration for the first 5 second? For the whole 15 seconds?

2007-07-08 03:05:34 · 4 answers · asked by lune_ellise 3

2007-07-08 03:03:23 · 2 answers · asked by venkata veena 1

i want to put my powerfull branes to some good use.

2007-07-08 02:14:24 · 7 answers · asked by Anonymous

Thx for you response.

2007-07-08 02:12:56 · 5 answers · asked by Anonymous

A motorboat begins on a course heading toward an island that is 1km east and 3km north from the boat's initial position. After traveling 45 mins, the driver discovers that the boat is due east of the island. He reverses his course, and 45 mins later the boat is 6km east of its starting point.
a.)What is velocity of the water current?
b. What is the velocity of the boat relative to the water for the first 45 min?
c) What is the velocity of the boat relative to the island for the first 45 min?

2007-07-08 02:02:37 · 2 answers · asked by physics maniac 2

4. ) Ball A is dropped from the top of a building at the same instant ball B is thrown vertically upward from the ground. When the balls collide, they are moving in opposite directions, and the speed of A is twice the speed of B. At what fraction of the height of the building does collision occur?

2007-07-08 01:50:04 · 3 answers · asked by physics maniac 2

2007-07-08 00:58:33 · 6 answers · asked by Louise Smith 7

When you mix Red, Green and Blue Light, you get White Light.
When you mix Yellow and Cyan light, you get Green.
So what about Cyan and Blue. I really need the answer. It's pretty important.

2007-07-08 00:49:40 · 3 answers · asked by Karlo C 5

Drawings, images

2007-07-07 21:53:35 · 3 answers · asked by mnd_wee 1

i heard this idea that when God created the world and spoke "let there be light" (or when he spoke anything else into being) that there is this partical or something like an atom that responds to voice commands or voice vibrations and this is how god just spoke stuff into being. Anyone heard of this?

2007-07-07 21:25:00 · 6 answers · asked by spikes g 3

2007-07-07 20:49:26 · 3 answers · asked by Vienna 3

a man (lying down) wachtes the sun set. he starts a stop watch as soon as the sun disapperas. he then stands (height of his eyes from ground is 1.70m) and stops the watch when the sun disapperas again. the time elapsed on the watch is 11.1s. what is the radius of earth?

2007-07-07 20:12:35 · 7 answers · asked by Secret L 1

When water flows from your bath, the direction it twirls is different in the Southern hemisphere to that in the northern hemisphere, why is that?

2007-07-07 19:32:08 · 9 answers · asked by Peter V 5

Add three vectors a,b,c each having magnitude of 100 unit and inclined to the x-axis at angles 45 degree,135 degree, 315 degree

2007-07-07 19:15:36 · 6 answers · asked by john 1

I'm thinking weapon-wise. So if a missile had a 10kg of explosive, you would approximate blast radius as what? just a rought conversion is fine.

2007-07-07 18:56:02 · 1 answers · asked by CGAR 2

2007-07-07 18:03:47 · 15 answers · asked by alam 1

when do we change our clocks one hour back?

2007-07-07 17:44:34 · 2 answers · asked by smurfty@sbcglobal.net 1

2007-07-07 15:43:39 · 9 answers · asked by evanescent_eclipse 3

2007-07-07 15:36:06 · 5 answers · asked by evanescent_eclipse 3

:)

2007-07-07 15:16:54 · 14 answers · asked by davidag09 2

1. A ball is shot from the ground into the air. At a height of 9.1 m, the velocity is observed to be v = (6.5 i + 5.8 j) m/s, with i horizontal and j upward.
(a) To what maximum height does the ball rise?
m
(b) What total horizontal distance does the ball travel?
m
(c) What is the magnitude of the ball's velocity just before it hits the gound?
m/s
(d)What is the direction of the ball's velocity just before it hits the ground?
° relative to the horizontal

2.A particle leaves the origin with an initial velocity v = (1.00 i) m/s and a constant acceleration a = (-1.00 i - 0.200 j) m/s2
(a) What is the velocity of the particle when it reaches its maximum x coordinate?
m/s i + m/s j
(b) What is the position vector of the particle at this time?
m i + m j

2007-07-07 14:50:22 · 2 answers · asked by Park S 1

How does a battery work? Please explain it thoroughly. I've looked it up, but none of the explanations make sense to me.

2007-07-07 14:42:21 · 4 answers · asked by nightowl 2

after knowing the importance of need for new ways of electricity generation n harmful affects of nuclear power use in it........should it b emphasized?!

2007-07-07 13:24:34 · 17 answers · asked by friend 2

Energy experts tell us to replace regular incandescent lightbulbs with compact fluorescent bulbs, but it seems hard to justify spending $15 on a lightbulb. A 60 W incandescent bulb costs 50 cents and has a lifetime of 1000 hours. A 15 W compact fluorescent bulb produces the same amount of light as a 60 W incandescent bulb and is intended as a replacement. It costs $15 and has a lifetime of 10,000 hours. Compare the life-cycle costs of 60 W incandescent bulb to 15 W compact fluorescent bulbs. The life-cycle cost of an object is the cost of purchasing it plus the cost of fueling and maintaining it over its useful life. Which is the cheaper source of light and which the more expensive? Assume electricity costs $0.10/kWh. Be sure to compare the two over equal time spans.

2007-07-07 10:53:48 · 8 answers · asked by Anonymous

and collides violently with the Visible Brane, or do you take a more 'hands on' approach to Physics and actually do something that is of use to Mankind. lol

2007-07-07 09:40:26 · 5 answers · asked by Anonymous

and don't give us so some trumped up version of what Newtons laws state. Just what the hell is it?

2007-07-07 08:57:14 · 19 answers · asked by Anonymous

(ie: fusion, solar, nuclear, etc.)

2007-07-07 08:29:59 · 12 answers · asked by toxicdrop2406 1

2007-07-07 08:22:50 · 3 answers · asked by albert01a 1