Physics/Expert Profile
Expertise
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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Recent Answers from James J. Kovalcin
2012-02-06 hockey player questions:
The hockey puck with the greater mass will undergo the smaller acceleration and will, therefore, achieve a lower initial velocity. But even so, the issue is NOT which one will go further, but which will
2012-02-06 expansion of liquids:
Sure you could! But if the thermal expansion of the glass was greater than the thermal expansion of the mercury then as the temperature rises, the level of the mercury within the thermometer would go DOWN!
2012-02-03 physics:
To convert the mass in kilograms to force in Newtons multiply by 9.8 N/kg. Multiply by 8000 to find the weight of a stack of such cubes. The pressure can be found by dividing the applied force, the weight
2012-02-03 Mass energy:
That is not what Einstein's equation says! E=m*c^2 says that when you convert mass into energy (as is done in a nuclear reactor) the amount of energy derived is directly proportional to the square of the
2012-02-01 reflected light:
I do not know the actual brightness of the reflected light from the sun but I do know that it is exceptionally bright. If you try to take a photograph of the moon with a regular camera you will find the
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