Physics - May 2007

thanks for answering !!!!!!!!!!!!!

2007-05-02 05:59:03 · 2 answers · asked by edbiology 1

I have resently been itrested in particals. I was just wondering if any one knew a easy way to exspaline how antimatter is made artificaly.

2007-05-02 05:31:38 · 5 answers · asked by awesomemanforthelord 2

If the conserved constants of the physical universe sum to precisely zero, does this means that everything that seems to exist is a symmetrical deviation from nothingness, and therefore nothing exists?

2007-05-02 04:56:23 · 4 answers · asked by ThinkaboutThis 6

2007-05-02 04:44:50 · 27 answers · asked by =P te-he 3

was albert einstien studying defying gravity before his death?

2007-05-02 04:36:03 · 3 answers · asked by emsicle homeslice :) 2

those little drain tornados why do they happen

2007-05-02 04:29:26 · 10 answers · asked by Anonymous

2007-05-02 04:00:07 · 7 answers · asked by Christine 1

im doing another school project

2007-05-02 03:52:03 · 3 answers · asked by slipknot freak 1

why is newtons laws of motion are totally depended on when it comes to matters concerning motion?

2007-05-02 03:43:23 · 3 answers · asked by Anonymous

Recently I heard a statement at my workplace about the chernoble accident. "If Chernoble had exploaded like an atomic bomb most of europe would have been blown on the face of the planet" The largest bomb ever detonated by any government was the Tsara Bomba (a 50mt ) airburst test and by any stretch of the imagination the damage was way more than I would have guessed. (http://nuclearweaponarchive.org/Russia/TsarBomba.html)

My question is how big of a blast would it have been.

note: I know that it wouldnt have exploaded under any conditions like an atomic bomb.

2007-05-02 03:31:44 · 3 answers · asked by zippo 3

2007-05-02 03:12:16 · 1 answers · asked by Anonymous

2007-05-02 03:08:12 · 3 answers · asked by Andrew H 2

after T seconds in motion, modeled by the quadratic funtion h(t)=-16t^2+Vot+Ho, where V initial is the original velocity of the object, in ft per sec, and h initial is the original height in feet above the ground. Height of a rock a projected. A rock is projected upward from ground level with an inital velocity of 90ft per sec. Let t represent the amount of time elapsed after it is thrown. A. Give function h that it describes the height of the rock as a function of t. B. If the heighth of the rock is at 30ft what is the time? C.If the height of the rock is at 60ft, what's the time? D. If the height of the rock is at 120ft whats the time?E.How high will the rock be 1.5sec after thrown? F.What is the max height attained by the rock? After how many secs?G. After how many sec will it hit the ground? PLEASE PLEASE HELP ME HERE IM STUCK AND MY CURRENT ANSWERS ARE ALL WRONG!

2007-05-02 03:00:56 · 2 answers · asked by Kathleen 1

Also why is it that the direction of current is taken opposite to that of the direction of electrons.

2007-05-02 02:32:39 · 6 answers · asked by s.s 2

Why is it better or not than other energy types? [wind, solar, fossil fuel etc.]

2007-05-02 00:27:35 · 8 answers · asked by Anonymous

some places you can walk through a xay screen and can see any type of metal or weapon on a person or in their purse. the idea is like to have some sort of transmitter that will transmit an signal like how the xray does and small porable screen or vehicle mount display that would be able to see or display the reflection of an "signal" off of an weapon on a person that will be transmitter. given from a distance of 5 to 15 feet

2007-05-01 20:18:17 · 2 answers · asked by Anonymous

I already did some question of a physics packet that i have for HW but I need help with some questions. Here they are.

1) Is the coefficient of friction lower when you walk on the slippery floor of the bumper cars or when you are walking on the pavement outside of the ride? How do you know?

2) Specifically, why does the person sitting on the outside of a high speed spinning ride, like Music Express , get crushed by the other people sitting with them?

3) It takes 20 seconds for the car to reach the top of freefall. If the tower is 30 meters tall , and we assume the car maintains a constant upward velocity, what is your velocity (speed) on Free Fall as it brings you to the top of the tower?

4) The sound of Batman can be heard throughout almost the entire theme park. Explain what causes the sound and how the sound travels to your ears.

2007-05-01 20:17:20 · 3 answers · asked by Sofi 1

The electric field near the surface of the earth points downward and has a magnitude of 150 N/C.

(a) Compare the upward electric force on an electron with the downward gravitational force.

(b) What charge should be placed on a penny of mass 3 g so that the electric force balances the weight of the penny near the earth's surface?

2007-05-01 20:05:10 · 2 answers · asked by hpage 3

i want the answer asap

2007-05-01 19:40:18 · 6 answers · asked by Anonymous

A 55.0- resistor is connected in parallel with a 115.0- resistor. This parallel group is connected in series with a 24.0- resistor. The total combination is connected across a 15.0-V battery. Find:
(a) the current in the 115.0- resistor
(b) the power dissipated in the 115.0- resistor.

2007-05-01 19:28:48 · 2 answers · asked by Anonymous

Ok so the faster you go the more mass you will have bla bla. We have infaniti space to work with and bla bla bla the faster you move the faster you move in time but light still takes time to get from point A to point B,, Any way do you think that we could move faster than light if we can find some thing that moves faster than light that we could use as a propulsion.

2007-05-01 19:16:59 · 7 answers · asked by scott p 5

2007-05-01 19:08:07 · 6 answers · asked by Lim S 3

why would it take 2 hours for a plane traveling east to west in a straight line at 500 miles an hour to go 1000 miles if the earth is spinning west to east at 1000 miles per hour....

2007-05-01 18:54:21 · 5 answers · asked by Anonymous

I have a project to do, and i need to understand why different guns, of the same barrel length, using the same type of ammunition, could have varying muzzle velocities.

If you would like to know, im comparing the M1903 Springfield and the M1 Garand which both have 24 inch barrels (as far as i know), and both fire .30-06 ammunition. To me, the only obvoius difference between the two firearms is that the M1903 is bolt action and the M1 is semi-automatic.

Any helpful answers would be appreciated.

2007-05-01 18:20:21 · 3 answers · asked by soup 1

A proton with an initial velocity of magnitude v in the +x direction enters a uniform magnetic field. For which direction or directions of the magnetic field, if any, will there be zero magnetic force on the proton?

+ x
- x
+ y
- y
+ z
- z
Check here if none of the above apply.


I don't know where to start...

2007-05-01 17:49:34 · 1 answers · asked by bippidibopiddi 2

2007-05-01 17:43:38 · 1 answers · asked by Cri 1

a 7.2 diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of .63 pointing up
during .15 sec the field is changed to one of .25 T pointing down
Find the average induced emf?
I would really appreciate your help on this one.... its got me all confused.

2007-05-01 17:23:26 · 2 answers · asked by Anonymous

...with your bare hands?
is it even possible?

2007-05-01 17:09:54 · 10 answers · asked by supersa3 2

I mean, other than coils and electromagnets...do we have other magnetic field sources,,,any other method of generating controlled magnetic fields...

2007-05-01 16:52:03 · 1 answers · asked by pitgigi 2

how do you show answers for:
A farmer uses a 2.0m long pry bar to dig a 435 N rock out of his field. The pry bar is jammed under the rock at an angle of 65 dgrees above horiz. how much force does he need to generate to start moving the rock if the fulcrum is .25 m from the end nearest the rock? (ignore weight of the bar, and assume the applied force is perpindicular to the bar)

2007-05-01 16:47:34 · 1 answers · asked by Anonymous