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Physics - March 2007

[Selected]: All categories Science & Mathematics Physics

i'll be graduating in 4 years with a degree on applied physics and some say job's scarce for graduates of the course. so does anyone where i could find a job after i graduate or are there other options?

2007-03-19 03:30:04 · 3 answers · asked by neon 2

what is structure and characteristic of submarine?

2007-03-19 03:21:37 · 2 answers · asked by uniQue 1

20 cubic inches of a gas with an absoulte pressure of 5 psi is compressed until its pressure reaches 10 psi. What is the new volume of gas?(Assume that there's no change in temperature.)

2007-03-19 03:08:14 · 4 answers · asked by lydia c 1

2007-03-19 03:05:28 · 6 answers · asked by Anonymous

A uranium nucleus (mass 238 u), initially at rest, undergoes radioactive decay. After an alpha particle (mass 4.0 u) is emitted, the remaining nucleus is thorium (mass 234 u). If the alpha particle is moving at 0.0350 times the speed of light, what is the recoil speed of the thorium nucleus? (Note: "u" is a unit of mass; it is not necessary to convert it to kg.)

2007-03-19 02:27:34 · 3 answers · asked by bud 1

In theory of course, also any examples of experiments which could support this would be great! Best answer will be the one explained in the simplest terms!

2007-03-19 02:13:00 · 4 answers · asked by Nexus 1

e=mc2 means that a very small amout of mass can be converted intoo a very large amount of energy and vice versa.. but when energy is converting intoo mass and who this is done..
when speed of light reach double of his speed?

2007-03-19 02:00:31 · 6 answers · asked by brlmnd 1

2007-03-19 01:52:53 · 5 answers · asked by samy 1

2007-03-19 01:49:50 · 5 answers · asked by Anonymous

A tourist walking at a speed of 1.3 m/s along a 7.5 km path that follows an old canal. If the speed of light in a vacuum were 3.0 m/s, how long would the path be, according to the tourist?

2007-03-19 01:01:17 · 3 answers · asked by christian m 2

For a wavelength of 420 nm, a diffraction grating produces a bright fringe at an angle of 26°. For an unknown wavelength, the same grating produces a bright fringe at an angle of 28°. In both cases the bright fringes are of the same order m. What is the unknown wavelength?

2007-03-19 01:00:13 · 2 answers · asked by christian m 2

Ok, i was told that if i was to spin a rope attached with a ball at the end around myself, the Centripetal Force is the resultant vector of Tension and Fg.
Is that true?
And if so, is the Centripetal Force always parallel to the horizontal ground?

2007-03-19 00:57:29 · 8 answers · asked by PonkieD 1

I have a problem in physics. We are doing heat and temperature. We put water in a conical flask and put a capillary tube and there are no space for air to travel. We record the volume of the water which is in the capillary tube. Then it is heated. How does the water falls and then rises. Please answer me it is base on 40 percent of my marks.

2007-03-19 00:55:26 · 7 answers · asked by Anonymous

my meaning is how spherical shape of balls are given

2007-03-19 00:15:47 · 2 answers · asked by mukesh j 1

http://img244.imageshack.us/img244/1603/untitled1pn0.jpg

2007-03-19 00:12:14 · 2 answers · asked by fye 1

2007-03-19 00:06:57 · 11 answers · asked by Anonymous

What are some atmospheric phenomena that can be related to optical principles in physics?

I've done
refraction
rainbows
mirages
scattering

anything else?

2007-03-19 00:05:05 · 2 answers · asked by Anonymous

Situation: A 4000 kg satellite orbits around mars

a) what is it's height?
b) what is the force of gravity?
c) what is the speed of the satellite?

2007-03-19 00:04:35 · 2 answers · asked by fye 1

2007-03-18 23:51:08 · 1 answers · asked by SAM 1

right been reading stuff on fusors and wondered if there is an easy way of converting high energy neutrons directly into electrical charge and what would be the side effects if any. I must admit i`m a complete amature so please make it simple. these guys recon they can do hot fusion in a vacum tube using duetrium as a fuel. worth a look as the original invetor(of the fusor) built the first crt television that we use today.

cheers guys look forward to your suggestions

2007-03-18 22:05:14 · 3 answers · asked by strange_bike 2

they include the Context Camera, MCS (Mars Climate Sounder), Optical Navigation Camera, Electra UHF Communications and Navigation Package & MARSIS sounding radar..

2007-03-18 20:55:10 · 1 answers · asked by ALi 1

I'm wondering if the kinetic energy that in Classical Mechanics is (1/2)mv^2 really exists. If we change the frame of reference the velocity v changes, so do the KE. So should we have for instance zero KE in case of a frame of reference that the body has zero velocity. Is this right?

2007-03-18 20:54:28 · 6 answers · asked by Stergios N 1

2007-03-18 19:58:55 · 7 answers · asked by Anonymous

a charge of 6 nanocoulombs and another charge of 3nC are 60cm apart. Where can a 12nC charge be placed where net electrostatic force will cancel out (equal zero)

2007-03-18 19:29:21 · 1 answers · asked by 2

This question is a bit hard and I can't figure out how to get to the answer.

What minimum horizontal force F is needed to pull a wheel of radius R and mass M over a step of height h (R>h)?
a)Assuming the force is applied at the top edge of the wheel.
b) Assuming the force is applied at the wheel's center instead.

The ANSWER is
a) Mg [h/(2R-h)]^1/2
b) Mg [h/(2R-h)]^1/2 / (R-h)

I have tried to get to these answers but it has not worked. I don't know how to do it.

2007-03-18 19:04:35 · 1 answers · asked by Anonymous

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