Recent content by Ronald Wieck

I am greatly impressed by the knowledge and understanding of the members of these forums. Facebook is a good place to study people in the grip of irrational beliefs, twoofers being particularly grotesque examples. Extracting an infected molar from an unanesthetized Siberian tiger with one's...

Doc Al, I was asked by my opponent, a 9/11 "truther," to state the point of greatest acceleration when a ball is tossed up in the air. I replied that the acceleration is a constant. He has been ridiculing me ever since without managing to express his precise position in a few coherent sentences.

In your experience, has a physics text ever asked such a question concerning acceleration and expected an answer that took air resistance into consideration?

A.T., I confess that your chart is not clear to me. Could you elucidate?

Many thanks for your prompt response. Yes, I have been doing some reading and the distinction between g and G is becoming clearer. The guy on FB tried to embarrass me by asking me where the acceleration is greatest when a ball is tossed up in the air. I replied that the acceleration is...

I am hoping to recover some of the knowledge of physics I gained in high school that has vanished into the mists of time. Currently, I am being abused on Facebook by a self-proclaimed authority who ridicules my contention that gravitational acceleration is a constant. I get the idea that gravity...