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James J. Kovalcin

U.S.
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I am teaching or have taught AP physics B and C [calculus based mechanics & electricity and magnetism] as well as Lab Physics for college bound students. I have a BS in Physics from the University of Pittsburgh and a Master of Arts in Teaching from same. I have been teaching physics for 34 years. I am constantly updating my skills and have a particular interest in modern physics topics.

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Joan04/01/14101010Thank you very much. I think my .....
Kai03/29/14101010Thank you so much! You are way .....
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Amjad 03/19/14101010I'm studying in 9th and I didnt .....
yank03/15/14101010thaanks sir

Recent Answers from James J. Kovalcin

2014-03-29 Linear momentum VS angular momentum:

Actually, both exist and either could be asked for!  The linear momentum p would be determined from:  p=m*v  And then the angular momentum L would be determined from:  L = r x p  where L is the cross product

2014-03-28 radiation:

ALL light is caused by the acceleration of charged particles and any charged particle that is accelerating can cause light. Most light we encounter every day is the result of electrons accelerating from

2014-03-27 What would happen in this scenario?:

Nothing happens to the water. The rod sits on top of the water with 25 meters of the rod sticking out of the hole. Water is for all intensive purposes incompressible and so it's volume essentially remains

2014-03-27 Electric dipole in an external field:

It is not "dipole movement" it is "dipole moment". What this tells you is how much torque the dipole will feel when placed in a known electric field E. Since the dipole is oriented anti parallel to the

2014-03-22 physics:

As in the previous question, work done is equal to the product of the charge and the change in electric potential:  W=dV*q  In this case the change in electric potential dV is -46V - 90V = -135V  Therefore

 

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