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I would be delighted to help with questions up through the first year of college Physics. Particularly Electricity, Electronics and Newtonian Mechanics (motion, acceleration etc.). I decline questions on relativity and Atomic Physics. I also could discuss the Space Shuttle and space flight in general.

Experience in the area

I have a BS in Physics and an MS in Electrical Engineering. I am retired now. My professional career was in Electrical Engineering with considerable time spent working with accelerometers, gyroscopes and flight dynamics (Physics related topics) while working on the Space Shuttle. I gave formal classroom lessons to technical co-workers periodically over a several year period.


BS Physics, North Dakota State University
MS Electrical Engineering, North Dakota State University

What do you like about this subject?

I went into Physics because it was the first material I both liked and understood in high school. I did well in my first year of college Physics, but the later years required higher math than my comfort level so after earning my BS degree in Physics, I switched into Engineering for my MS degree.

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
Birol04/20/17101010Thank you very much Steve, I will .....
Prashant S Akerkar 04/19/17101010Dear Prof Steve Thanks. Prashant
Prashant S Akerkar 04/15/17101010 
Prashant S Akerkar 03/22/17101010Dear Prof Steve Thanks. Prashant
Prashant S Akerkar03/19/17101010Dear Prof Steve Thanks. Prashant

Recent Answers from Steve Johnson

2017-04-18 atoms, touch, and hitting baseballs...:

Hello Jack,    Yes. Our ordinary, everyday definition of touch is looking at it from the macroscopic scale.     Using our everyday, macroscopic, definition of touch, the bat and ball touch. And, let me

2017-04-17 Thermos flask construction.:

Hello Prashant,    1. All other things that would affect the efficiency of an insulated vessel being equal, a spherical shape would be most efficient due to a smaller surface area/volume ratio.     2.

2017-04-16 atoms, touch, and hitting baseballs...:

Hi jack,    Well, it's complicated. Our interpretation of the word "touch" has to have (or should have) a definition different from the everyday definition when thinking about individual atoms. Same with

2017-03-21 Luminous intensity of Chandelier.:

Hello Prashant,    Yes, we can. I do not know if it is typically done. It would be (or perhaps is) difficult. The Chandelier would have to be surrounded with instrumentation. Enough sample measurements

2017-03-18 Equilibrium.:

Hello Prashant,    1. Equilibrium is a state, or condition. Therefore it would not have units. It is defined as a state in which the net force is zero and the net torque is zero.    2. Since it is not


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