Physics - January 2007

2007-01-18 13:02:37 · 3 answers · asked by coqueta4real 1

2007-01-18 13:02:11 · 3 answers · asked by sullyims 1

2007-01-18 12:57:02 · 5 answers · asked by sullyims 1

Of course, I am talking about weightlessness in a gravitational well, such as Earth's. When astronauts are in orbit, they are essentially high above the earth. Without propulsion, they'd ultimately fall back through the atmosphere. With propulsion, they are able to keep their altitude. Does this continous free fall create the illusion of weightlessness?

I know this might be a stupid question. This is just out of curiosity.

2007-01-18 12:17:02 · 10 answers · asked by Oklahoman 6

Please help...Thank you!

2007-01-18 12:14:00 · 3 answers · asked by Anonymous

2007-01-18 12:09:34 · 2 answers · asked by drake e 1

Here's the question: An 18 y/o runner can complete a 10.0km course with an avg speed of 4.39 m/s. A 50 y/o runner can cover the same course with an avg speed of 4.27 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner?

2007-01-18 11:50:57 · 12 answers · asked by Anonymous

2007-01-18 11:38:54 · 5 answers · asked by howlme 2

states of matter of oxygen

2007-01-18 11:35:45 · 4 answers · asked by bingotheclown2000 1

The outside wheels of a car, running on a circular track, are going twice as fast as the inside ones. What is the length of the circumference described by the outer wheels? The wheels are five feet apart on the two axles.

2007-01-18 11:32:48 · 2 answers · asked by Anonymous

I recall at school learning about when two things are oscillating at the same frequency - it has a name. It's what causes glass to shatter when opera singers hit the top note! Anyone can fill me in?

2007-01-18 11:26:31 · 11 answers · asked by Ferdy 2

2007-01-18 11:26:03 · 8 answers · asked by KIM R 1

The magnitude of each of the charges in the figure is 9.00x 10^-12 C. The lengths of the sides of the rectangle are 3.00 cm and 6.00 cm. Find the magnitude of the electric field at the center of the rectangle in figures a and b.
figure a= 143.84 N/C
figure b = ___________N/C

http://www.webassign.net/CJ/18-21fig.gif

I have solved part A and I'm sure that it factors into part B somehow, but I have no idea how to proceed with solving part B. I am in desperate need of some guidance here!

My line of thinking is that I need to find the angle of the electric field, which I believe to be 26.6 degrees. Not sure if that is correct. There is no x-component to the electric field, but there is a y component which I think is obtained by 143.84sin(26.6)= 64.405. Problem is that I'm still getting a wrong answer, so I must be doing something wrong. Can anyone point me in the right direction?

2007-01-18 11:22:59 · 2 answers · asked by larkinfan11 3

speaking in physics terms.

2007-01-18 11:17:11 · 4 answers · asked by Jack 2

Did Galileo believe that the natural state of an object was to be at rest?

2007-01-18 10:48:41 · 4 answers · asked by Cero Strife 4

just a yes or no is all i need. no explanations needed either. I think it canbe reduced but not elimated but im not sure

2007-01-18 10:29:44 · 5 answers · asked by Cero Strife 4

2007-01-18 10:15:53 · 4 answers · asked by veronica9004@sbcglobal.net 2

A car starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.0m/s^2. The magnitude of the car's velocity at the end of stage 2 is 2.5 times greater than it is at the end of stage 1. Find the magnitude of the acceleration in stage 2.

2007-01-18 10:15:32 · 4 answers · asked by Anonymous

Vector A and B are not along the same line

2007-01-18 10:06:21 · 3 answers · asked by argentina 1

Practicaly playing with bar magnets I noticed that each pole had in itself a north and south pole, in asmuch for want of a better description if it were stood on end the force would be cascading down on all sides, so by looking at the right of the magnet, the force would be clockwise but to the left anticlockwise, is it anyway possible to direct all the force: say to the right or to the left

2007-01-18 09:52:58 · 4 answers · asked by Anonymous

A heavy object and a light object are dropped from the same height at the same time. Which object will reach the ground first?

2007-01-18 09:41:39 · 8 answers · asked by Anonymous

2007-01-18 09:40:55 · 2 answers · asked by Anonymous

My TV makes an annoying high pitch humming sound whenever it is on, even if I mute the sound. I am pretty sure it is a result of a buildup of static electricity. Is there any way I can dissipate this static electricity or do anything else to make my TV stop making the high pitch noise?

2007-01-18 09:38:03 · 3 answers · asked by mcc11783 2

2007-01-18 09:17:46 · 9 answers · asked by 1978nevaeh 3

In other words is the TRUE color really red? I have heard that color is the light not absorbed by the object, therefore the color we see is the refracted/reflected light waves..and so on... so I guess the question is: What color is a RED APPLE?

2007-01-18 09:06:46 · 4 answers · asked by RUNINTLKT 5

2007-01-18 09:00:25 · 6 answers · asked by Anonymous

If I were to tell you that you would be making a trip, on this trip you will be crossing a certain number of checkpoints. Then I was to tell you that this number of checkpoints is infinity, it would be safe to assume that the total trip would be of a infinite distance, and it would take you a infinite amount of time. But, the trip is only 100 feet long. What I did was drew a starting line and finishing line exactly 100 feet apart. Then I put the first check point halfway, at 50 feet, then the next checkpoint between the halfway mark and the end at 25 feet. Then the next at 13 1/2 feet, then the next at 6 3/4 feet... etc, each exactly half way between the last checkpoint and the finishing line. Since a number can be divided in half a infinite amount of times, then there could be a infinite amount of checkpoints along a 100 foot stretch. I know this logic is wrong, but I've yet to find a web site explaining why or how it's wrong.

2007-01-18 08:53:58 · 9 answers · asked by jedi1josh 5

2007-01-18 08:52:02 · 6 answers · asked by Nigel 1

if you do the same on moving esculator you will end up on the next step down. And that moves slower?

2007-01-18 08:51:47 · 22 answers · asked by carl t 1

I heard an interesting theory about having negatively charge Dark matter or something else surround something and thus it can move faster than light. If anyone knows the name of this theory or where i can find more about it.

2007-01-18 08:43:50 · 5 answers · asked by Anonymous