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Site Links:
· Physics, Main Page
· Physics, Mathematics
· Mathematics, Main Page
· Physics, Detailed Homework Scope
· Physics Problems, Example
· Energy, Work and Power
· Kinetic Energy
· Potential Energy
· Power
· Physics Homework - Mechanical Energy Conservation Problems
· Physics Homework - Examples of Mechanical Energy Problems
· Coulomb's Law
· Exercises Using Coulomb's Law
· Electric Field Charges
· Electric Field Exercises
· Electric Potential Energy
· Exercises, Electric Potential Energy
· Ohm's Law, Principle
· Ohm's Law Exercises
· Gauss' Law
· Gauss' Law Exercises
· Probability Definitions
· Probability Sets · Second Newton's Law
· Second Newton's Law Examples, Part One
· Second Newton's Law Examples, Part Two
· Sound Waves
· Sound Waves: Standing, Interference, Doppler Effect - Examples
· Sound Waves, Doppler Effect - Examples
· Vectors, Scalars
· Vectors, Scalars - Analytic Method
· Addition Vector Tools, Problems
· Free Fall Theory
· Free Fall Exercises, Part One
· Free Fall Exercises, Part Two
· Free Fall Exercises, Part Three


                 HOW TO PAY


The math and physics problems you send us will have a cost 
estimate that will be sent to you by email as soon as possible. 
You can negotiate with us upon that cost at your request.

You can pay with credit card or check via Internet or by 
Western Union if you prefer to pay without using the Internet.

The quickest and most economical way to pay is by Credit 
card via Internet (PayPal) or as a PayPal member.

       
Pay:  Credit Card, Check or as a Paypal Member - Click here!  
  

To pay by Western Union: http://www.westernunion.com
use the above link to locate the Western Union location 
closest to you. The way to send the payment with them is to 
the name and address below, without using any bank service 
(otherwise there would be a number of days of delay). 
Western Union will give you a control number and you send 
that number to  the email that is at the end of this site 
mentioning the name below (Sergio Fernandez Aedo).  With 
that number the funds will be collected by him.

Western Union requires this information:

    Name: Sergio Fernandez Aedo
Address: Nueve y Medio Norte 932
        City: Vina del Mar
   Region: Quinta Region
 Country: Chile
         
                 
You can ask for personalized help to send your payment. 
Email: sfernand@terra.cl