Physics - December 2006

2006-12-23 09:45:17 · 2 answers · asked by mrg5834 1

2006-12-23 07:37:46 · 13 answers · asked by OK 3

As far as my limited knowledge is aware, I know that Pion's mediate the interactions between quarks and gluons, and help bring them together, while Gluons are what hold such particles together (as in a "glue"). So what, besides mathematical descriptions, seperates a pion from a gluon? And if very little does, why is their a need for the two instead of just one?

2006-12-23 07:07:39 · 1 answers · asked by michaelazerrad 1

2006-12-23 07:01:08 · 10 answers · asked by Einstein 7

2006-12-23 06:34:10 · 1 answers · asked by akshay p 1

Which one of the followign statements is true concerning the strength of the electric field between two oppositely charged parallel plates?
A) It is zero midway between the plates.
B) It is a maximum midway between the plates.
C) It is a maximum near the positvely charged plate.
D) It is a maximum near the negatively charged plate.
E) It is constant between the plates except near the edges.

2006-12-23 06:31:27 · 3 answers · asked by Anonymous

What changes in the light structure that makes different colors? How are the photons different in blue light than green?

2006-12-23 05:51:47 · 14 answers · asked by bohdan 2

If so how dangerous are they?

2006-12-23 05:47:15 · 7 answers · asked by Anton90125 1

The instruments attached to a weather balloon have a mass of 4.6 kg. The balloon is released and exerts an upward force of 100 N on the instruments.
(a) What is the acceleration of the balloon and instruments?
Magnitude
____ m/s2

(b) After the balloon has accelerated for 10 s, the instruments are released. What is the velocity of the instruments at the moment of their release?
Magnitude
_____ m/s

(c) What net force acts on the instruments after their release?
Magnitude
______ N

(d) When does the direction of their velocity first become downward?
_____ s (after release)

2006-12-23 05:43:58 · 3 answers · asked by Mrs. Jenny 2

1. the kinetic friction of one metal object sliding along another metal surface depends least upon?
a. the coefficient of kinetic friction
b. the noraml force
c. the nature of matierals in contact
d. the area of contact

I think it's C but i could be wrong, explain to me if i am...

2006-12-23 05:42:48 · 8 answers · asked by Mrs. Jenny 2

2006-12-23 04:30:13 · 4 answers · asked by Anonymous

2006-12-23 02:56:09 · 10 answers · asked by Jagjit Singh 1

I know so far that wavelength is the distance between two sucessive crests or troughs

2006-12-23 02:39:42 · 5 answers · asked by professor Emmanuel 1

2006-12-23 02:36:59 · 6 answers · asked by Anonymous

2006-12-23 02:20:59 · 3 answers · asked by Anonymous

The photo is also on the Snopes.com website. The link is http://www.snopes.com/photos/animals/camelshadows.asp
I think it is a hoax because the shadows are 20 times the camel height. That happens at sunset, However the height will be 20 times and the bredth normal. In this case the ration of height to bredth has been preserved. Do you think it is a hoax ?

2006-12-23 02:08:33 · 11 answers · asked by Dr.Dividend 1

2006-12-23 01:41:33 · 3 answers · asked by Anonymous

Doesn't the theory of Matter Spread contradict with the fact that all things attract and gravity? PLEASE no "I don't know" answers.

2006-12-23 01:11:15 · 3 answers · asked by T-wad 2

Suppose you have 2 engines, both 4 cilinders. One has a capacity of 2000cc, the other 1600cc.
I am wondering which engine would consume more gasoline if you would drive (with the same car and in the same wheather conditions ofcourse) at 100mph (= about 160 km/h).
Can a 2.0L engine burn the gasoline more efficiently at such a high speed?

I'm curious about the outcome :)

2006-12-23 00:59:32 · 2 answers · asked by JohnyD 3

what are the different types of charcoal and they're densities?

2006-12-23 00:57:28 · 2 answers · asked by Anonymous

2006-12-23 00:23:09 · 10 answers · asked by Anonymous

is there a limit to the extent whereby 2 atoms can be compressed? i mean regardless of the energy it takes. or is there some limit whereby at some level of energy, some changes happen between 2 atoms? e.g. nuclear fusion?

at a certain separation Do, the force of attraction = force of repulsion between 2 atoms. forcing them tgt will increase the potential energy of the atoms as follows in Hooke's Law. I just want to know whether is it infinity or there is a limit.

2006-12-23 00:13:11 · 3 answers · asked by luv_phy 3

2006-12-22 23:28:58 · 14 answers · asked by falcidia 4

I study in10th class.and i want this answer

2006-12-22 23:26:55 · 6 answers · asked by rahul 1

There is a floating cubic-formed matter in water. Half of it inside
and the other half outside of water.
1) If we translate it to the moon, haw amount of it will be
inside water?
2) What about, when the same matter is on a planet with gravity
twofold of earth.
3) What is the situation to water at zero gravity?
(Suppose all other conditions as it in the earth.)

http://www.geocities.com/ramin1102000/15.html

2006-12-22 22:44:38 · 3 answers · asked by ramin mardfar 1

question 1 :
- A 29.0 kg block at rest on a horizontal frictionless air track is connected to the wall via a spring. The equilibrium position of the mass is defined to be at x=0. Somebody pushes the mass to the position x= 0.350 m, then lets go. The mass undergoes simple harmonic motion with a period of 4.50 s. What is the position of the mass 3.600 s after the mass is released?

- Consider the same mass and spring discussed in the previous problem. What is the magnitude of the maximum acceleration the mass undergoes during its motion?
the figure : http://www3.0zz0.com/2006/12/22/10/61592534.jpg
*****
question 2 :
A 8.40 kg mass suspended from a spring with spring constant, k = 800.0 N/m, extends it to a total length of 0.270 m. Find the total length of the spring when a 13.40 kg mass is suspended from it.

I begin to solve it's problem but i don't know how to find the total length of the spring !!
F=mg=13.40*9.81=131.454 N
x=F/k=131.454/800=0.1643m

2006-12-22 21:46:33 · 4 answers · asked by Anonymous

Instead its made up of a different shape and most likely a shape that is not exactly the same as other things that exist? Like snowflakes no two are ever the same would the "smallest" unit of mass also have the no two are ever the same rule apply to it?

2006-12-22 20:23:49 · 8 answers · asked by magpiesmn 6

2006-12-22 19:49:59 · 2 answers · asked by Sajad 1

2006-12-22 19:40:55 · 6 answers · asked by Anonymous

2006-12-22 19:37:56 · 6 answers · asked by Anonymous