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Site Title: Physics Help and Math Help - Physics Forums
Site Description: "Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives"
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Physicsforums RSS Details

 
Bits, Bytes, Transmission Rates
Problem : a) A good sized English book has about 100000 words. If an average English word is six characters long and each character needs 1 byte, show that the book can be stored in 600 kbyte of......

Alpha Lipoic Acid Polymerization Question
I am taking R-Alpha Lipoic Acid (RALA) as a supplement, however apparently it's very unstable and polymerizes at about 40-50 degrees C and becomes unabsorbable. Apparently it also polymerizes when it......

Optimization Of Kite
My job is to maximize the area of the kite so that it will fly better, faster, higher. A kite frame is to be made from six pieces of wood. The four pieces that form its border have been cut the......

From CS Major In Europe To Math PhD In USA/Canada?
This will be a long post but I will be thankful if you read it. I,m a CS major, senior year from Bulgaria. Wanted to go to Mathematics but in my city (actually in the city i bought an apartment)......

Projects In Particle Physics
Hi all.. I am going to pursue my study for MSc in Physics next year most probably in UK. As a completion of the course, we need to do an in-depth research project. With Particle physics in mind, I am......

Prove The Trigonometric
*1. The problem statement, all variables and given/known data* prove : 1-cos x / sin x = sin x / 1+cosx 1-cosx / 1+cos x = tan^2 (x/2) *2. Relevant equations*...

Is Matter And Energy Always The Same Entity?
I often think about how we perceive the world around us. When I take 2 permanent magnets and put them with the same poles repelling each other, I think about what is happening when I touch a "solid"......

Age And Structure Of The Universe...
A recommended lecture on the age and detailed structure of the Universe, listed in reference 1. George Smoot is a Nobel Prize in Physics laureate for his work on COBE. Reference: TED -......

Inelastic Collision 1d
*1. The problem statement, all variables and given/known data* A 2kg object moving 5m/s in the positive x direction has a one dimensional elastic collision with a 4kg object moving at 1m/s in the......

Bound Charge Inside And Outside A Dielectric
*1. The problem statement, all variables and given/known data* A conducting wire of length a and charge density lambda is embedded inside a dielectric cylinder of radius b. To Show: a) Bound charge......

Determination Of The Enthalpy Of Combustion Of Magnesium Using Hess's Law
*1. The problem statement, all variables and given/known data* ok so i'm trying to find the change in enthalpy for this reaction: Mg(s) + (1/2)O2--> MgO(s) I've done the lab to find the......

Logarithm
*1. The problem statement, all variables and given/known data* Express 2log...

The Propagator
This might turn out to be a stupid question but ...i couldnt understand The propagater is defined as exp[-iHt/(h/2pi)]...this would be the matrix so U(t)|...

Elastic Collision.
*1. The problem statement, all variables and given/known data* A 70kg man who is ice skating north collides with a 30kg boy who is ice skating west. Immediately after the collision, the man......

How Do You See The Sun After It Has Set??
*1. The problem statement, all variables and given/known data* The density of the atmosphere decreases with height, as does the index of refraction. Explain how one can see the sun after it has......

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