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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
Prashant S Akerkar02/21/17101010Dear Prof Steve Thanks. Prashant
Prashant S Akerkar02/13/17101010Dear Prof Steve Thanks. Prashant
Prashant S Akerkar 02/12/17101010Dear Prof Steve Thanks. Prashant
Prashant S Akerkar 02/06/17101010Dear Prof Steve Thanks. Prashant
Prashant S Akerkar 02/02/17101010Dear Prof Steve Thanks. Prashant

Recent Answers from Steve Johnson

2017-02-17 Satellites running out of fuel.:

Hello Prashant,    The type of indicators depends on the type of fuel. It could be a pressure measurement. This site  reports that "Pressure

2017-02-15 physics:

Hello Hezekiah,    I am not sure if I am interpreting your question correctly. I will assume you are concerned that in the case of a slow reaction, that heat escaping from the calorimeter during the total

2017-02-14 Physics:

Hello Jeremy,    1. Your question asks for an expression describing y-displacement of a particle of this rope as a function of time. Since this is a moving wave, it needs to be a function of x,t. This

2017-02-12 Mathematical constants with units.:

Hello Prashant,    I think no. Your example of pi is a ratio of circumference and diameter, both lengths. So when the ratio is calculated, the unit of those lengths cancel out, leaving a real number with

2017-01-31 Seats location in Commercial airlines.:

Hello Prashant,    Bidirectional seating would be very uncomfortable for those facing the rear during the acceleration of takeoff. Those facing forward have the seat-back to accelerate them forward. Those


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