Physics - September 2006

2006-09-18 08:30:26 · 2 answers · asked by goring 6

Is the speed of light a convenient theoretical barrier, just as the sound barrier was thought to be impossible to break at one time..are we not just setting limits that do not exist

2006-09-18 08:19:59 · 17 answers · asked by Anonymous

then why when I bring a glass of water from a tap outside in a crystal cup, does it retain a transparent color, and not become bluish?

if it deals with the volume of water, why just because there is more volume in one sample should it be blue, and stay transparent in the other sample?

2006-09-18 08:08:30 · 5 answers · asked by wjs111 2

2006-09-18 08:07:24 · 3 answers · asked by FauxPas 2

A large ball attracts us by pulling us down. Inside the ball is a smaller ball that attracts the outer shell,thatn inside that ball is stil a smaller ball that does the same as the previous one till we reach a limit the ball is now the size of a golf ball and it behave as a black hole which will attract to it the larger outer shell. and what 's inside that golf ball volume that gives it the property to pull and suck mass toward it requires black hole tecknology?Such a mass would have a fantastic curvature.?

2006-09-18 08:06:53 · 4 answers · asked by goring 6

2006-09-18 08:04:44 · 21 answers · asked by Lindsey D 1

Da and Da (average) and Dt for the data?

2006-09-18 08:03:25 · 1 answers · asked by dreamz 4

2006-09-18 08:00:48 · 3 answers · asked by Anonymous

A spring has been attached to a pole. At the other end of it is a mass. If the pole were to start rotating, how should I go about trying to find a mathematical relation between the extension of the spring and the angular acceleration of the system?

I know that angular acceleration increases centrepetal acceleration, causing the mass to exert a force on the spring, resulting in an extension in the spring, proportional to the spring constant. Um...I don't exactly know how to make the mathematical connections. I suppose it might involve a differential equation. Can you please help me?

2006-09-18 07:50:19 · 2 answers · asked by Anonymous

Can we define our voice as a form of energy? This can be transmitted electronically through phone wires and satellite and recontructed so we can hear people as if they were right next to us. Why can we not do this with the bodies of living things, ie somehow electronically send people over distances?

--I never had a physics class so please bear with me on this.

2006-09-18 07:49:33 · 5 answers · asked by Anonymous

If a tank of water has a 300 cm^3 area (it is 20.0 cm long and 15.0 cm wide), if it has a volume of 1.20 x 10^4 cm^3, what is its height in meters? Also, what is the capacity in liters of the tank? Also, how many kilograms of water at 4 degrees C will the tank hold?

2006-09-18 07:44:00 · 2 answers · asked by dreamz 4

2006-09-18 07:43:52 · 4 answers · asked by eina 2

2006-09-18 07:36:46 · 4 answers · asked by tezzwilcox 2

2006-09-18 07:36:28 · 7 answers · asked by chitchat 1

2006-09-18 07:31:39 · 4 answers · asked by goring 6

2006-09-18 07:23:54 · 11 answers · asked by Anonymous

Would the planet develop a speed wobble like an unbalanced wheel? Could this alter our orbit?

2006-09-18 07:16:33 · 18 answers · asked by Ripped007 1

in constructive interference of sound waves of two sources .. compressions from the first source meets compressions from the second source .. and amplitude increases and sound is louder.. and the path difference equals m x wave length .
what does (the path difference) means ?

2006-09-18 06:45:45 · 3 answers · asked by Anonymous

coordinate system?

2006-09-18 06:44:10 · 3 answers · asked by chica1012 2

I was a greade 10 student last year.And I am waiting my ESLCE resalt naw.I think all subjects quastions were nice ecept physics. Befor 2 years my resat was good (greade 7&8) but when I start greade 9 my physics resal was very very poor.Greade 10 too. I think this problem is will prevent me from science dipartment. Inorder to solve my problem what can I do. If you know any means which is easy to solve physics problems starting from elementary and key words please and please help me.
From highschool student.

2006-09-18 06:39:08 · 3 answers · asked by aselef 1

2006-09-18 06:31:45 · 4 answers · asked by goring 6

If Newton was not exact and needed refinement in the gravity equation how did he fit in the Einstein Field Equation?

2006-09-18 06:22:52 · 1 answers · asked by goring 6

vector v1 is 6.6 units long and points along the negative x axis. vector v2 is 8.5 units long and points at +45degrees to the positive x axis. a) what are the x and y components of each vector? b) determine the sum v1 and v2 (magnitude and angle)/

2006-09-18 06:14:10 · 4 answers · asked by Anonymous

the components of a vector can be written (Vx,Vy,Vz). what are the components and length of a vector which is the sum of the two vectors v1 and v2 whose components are (8.0,-3,7,0.0) and (3.9,-8.1,-4.4)????

2006-09-18 06:11:54 · 5 answers · asked by Anonymous

2006-09-18 06:11:47 · 8 answers · asked by goring 6

2006-09-18 05:47:04 · 3 answers · asked by goring 6

2006-09-18 05:44:50 · 9 answers · asked by goring 6

Why does our visual range stop outside the 400-700nm (approx) wavelength range of light? Are there people or animals who have a greater range than this? I have heard that some insects (bees to be precise) can see in the ultra violet and infa-red range.

Is it biologically impossible to see beyond this or is it just the result of evolution cutting out any wavelengths that would not be of any use to us? Can we see the full spectrum of light but our brains filter out anything that isn't in this range? Any web references would be very useful.

2006-09-18 05:22:08 · 12 answers · asked by John D 3

The objective of this question is to generate insights of how this problem could be solved using collective mankind´s knowledge.
The greatest cientist of our history didn´t solve this question yet, but now the Internet provide us a platform where colaborative knowledge share between schoolars and common people can give us a better chance to actieve this goal.

2006-09-18 05:21:20 · 44 answers · asked by Edgard F 1

The objective of this question is to generate insights of how this problem could be solved using collective mankind´s knowledge.
The greatest cientist of our history didn´t solve this question yet, but now the Internet provide us a platform where colaborative knowledge share between schoolars and common people can give us a better chance to actieve this goal.

2006-09-18 05:19:58 · 18 answers · asked by Edgard F 1