Do they form an action-reaction pair of forces?
I don't know if you get this question alot, but a man standing on the ground is subjected to 2 forces. Or, think of the old expression "�as slow as molasses in January�".) Get an intuitive feeling for how viscosity would affect the frictionalįorce. (Think of a very heavy oil and a very light oil to If the water is heatedĭecreases from about 890 to 547 μPa�s which will result in a Water depends quite sensitively on its temperature. Here is what I think: The bottle probably had condensation (water) which wasįairly cool and the hood of your car was warm or even hot. How can this happen? I did it a second time and the empty bottle did it again. I was trying to tell my girlfriend that it was from heat convection, but she disagreed. Within seconds the empty bottle started to vibrate slightly and then"walked" down the hood of my car. I recently drank a glass bottle of rootbeer and then set the empty bottle on the hood of my car that was slanted slightly (1980's model). I have something I have been wondering about.maybe you can answer. I guess you have not been following news articles over the past dozen years!Įxoplanets (planets revolving around stars other than the sun) have been There are stars which are bigger than the sun, and apply more gravitational force, but other planets do not attracts towards the stars. Why do the planets revolve only around the sun? I was surprised to learn that the sun is almost a If you like my answer, please consider making a Is a history of older questions and answers processed by "Ask the Physicist!". Images below for information on the content of the books and for Now three Ask the Physicist books! Click on the book With the recent publication of PHYSICS IS.
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