Physics - June 2007

I know it means the multiplaction of the factor by itself but am interested to know why the function crops up so often in famous expressions and what physical phenomena it represents.

2007-06-04 06:20:14 · 8 answers · asked by Andrew H 2

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I would like to know your thoughts on this article and what you think might be the full range and scope of this technology.

2007-06-04 05:48:55 · 12 answers · asked by Bob D1 7

2007-06-04 05:45:21 · 5 answers · asked by conorcool90 2

2007-06-04 05:36:57 · 5 answers · asked by Matt 1

Just trying to figure out if sound travels better before or during a rain storm.

2007-06-04 05:08:23 · 12 answers · asked by Chris F 2

2007-06-04 04:50:08 · 6 answers · asked by jasminebracey 1

Is there like some force or something? could you build a machine to stop it happening? then you could float and stuff, like the aliens :-)

2007-06-04 04:41:05 · 9 answers · asked by 2kool4u 5

This is if I drop a variety of objects.
Also, why are they not all the same?

2007-06-04 04:33:08 · 4 answers · asked by Anonymous

What is the ideal efficiency of an automobile engine where fuel is heated to 2700 K and the outdoor air is at 270 K?

how do i do this..i dont need the answer just the way to do it

2007-06-04 04:13:30 · 4 answers · asked by Lou 1

the lower end of the string is made to describe a circular path while the string makes an angle θ with the vertical. The body undergoes uniform circular motion. At any point of time, the tension(T) is opposite to the cos component of mg, such that we can write--- T=mg cosθ
But it is seen that the cos component of T is opposite to mg, such that--- T cosθ = mg
But how is that possible??? The use of these two equations in a related problem yields two different answers.
Which one is correct and why????

2007-06-04 04:01:08 · 7 answers · asked by AD 1

a. milk becomes sour
b. an iron nail rusts
c. all the water in a solution of salt water evaporates leaving a lot of crystals of salt in the bottom of the dish
d. A wooden log is burned leaving ash in the fireplace

2007-06-04 03:48:35 · 13 answers · asked by Anonymous

can u give me link to a site?
or even name a site.

2007-06-04 02:31:14 · 4 answers · asked by virat 2

why physics is considered a basic science

2007-06-04 02:18:44 · 8 answers · asked by sweet_candy 2

2007-06-04 02:14:59 · 4 answers · asked by Anonymous

Newton's second law :

m*a = P*s*e^(-bt) - C*v(t)

a = d^2x / dt

v = dx / dt

m*d^2x / dt = P*s*e^(-bt) - C*dx / dt

m*d^2x / dt + C*dx / dt = P*s*e^(-bt) >>> Differential equation

^how can i solve that differential equation?

2007-06-04 01:57:24 · 4 answers · asked by Candy Cane 1

An airplane with a speed of 33 m/s is climbing upward at an angle of 44° counterclockwise from the positive x axis. When the plane's altitude is 740 m the pilot releases a package.
(a) Calculate the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
m

(b) Determine the angle of the velocity vector of the package just before impact.
° clockwise from the positive x axis

How do I solve for the horizontal distance when there is only x-for distance in the kinematics equations........I have 740m and x for distances!! Please show your work so that I can figure out how to do these problems....thanks!

2007-06-04 01:40:00 · 3 answers · asked by wildcherrychica1 2

What happens to the atom after its outermost electron is ionised?

If it becomes an ion, what will happen?

Will the energy levels change since it has become more positive and electrons are attracted more now than before?

2007-06-04 01:38:54 · 3 answers · asked by Anonymous

Explain how the existence of electron energy levels in atoms give rise to line spectra, which may be emission or absorption spectra?

Why is there dark lines in the spectrum?

Please explain the difference between absorption, emission and continuous spectrum.

What leads to continuous and line spectra?

2007-06-04 01:38:09 · 2 answers · asked by Anonymous

2007-06-04 00:56:00 · 12 answers · asked by RUSTY 1

Explain in detail, please...

2007-06-04 00:00:15 · 14 answers · asked by LUCKY3 6

2007-06-03 22:48:01 · 3 answers · asked by Lisa 1

Please provide rules if needed

2007-06-03 22:43:38 · 5 answers · asked by Anonymous

type,pixel and brand...cost.

2007-06-03 22:37:34 · 1 answers · asked by ata_shinobi 1

dis is not an I.Q question...based on the concept of physic

2007-06-03 22:21:00 · 14 answers · asked by Anonymous

If a ray of light enters from a material of low optical density to a material of igh optical density which directions is the light bent relative to the normal?

2007-06-03 20:02:03 · 4 answers · asked by billf39 2

Tell me what happens to electrons as we study them up close. Whats this I hear about them fading in and out of our dimension?

2007-06-03 19:52:38 · 1 answers · asked by Mercury 2010 7

is it possible for all or part of an object in free fall to accelerate at a rate greater than g? why or why not?

2007-06-03 19:51:22 · 10 answers · asked by inspectorlocohombre 2

2007-06-03 19:49:47 · 4 answers · asked by inspectorlocohombre 2

, the dipole will hace a rotaional or translatory or both type of motion?

How will the answer change if same dipole kept in unifrom field.

2007-06-03 19:43:52 · 1 answers · asked by emmy 2

2007-06-03 19:43:23 · 7 answers · asked by lykh55 1