Recent content by 333cory333

  1. 3

    Drag coefficient of a sphere ()

    After discussion with an intimate physics professor, we reached contradicting results: like in the case of golf balls, the rough surface can make air pockets, or when the air meets a certain condition (some sort of Reynolds number boundaries) the drag coefficient is bigger for rougher spheres...
  2. 3

    Are ping-pong balls hydrophobic?

    I still haven't found out a certain answer, but I'm surely progressing! Thanks for your consideration :)
  3. 3

    Are ping-pong balls hydrophobic?

    Hello, everyone! I'm conducting an experiment in a lab and while setting parameters, this question came to my mind. Are ping-pong balls hydrophobic? (They are made out of cellulose) And if sesame oil or grease is coated on the surface, do they become hydrophobic? Thanks, as always :approve:
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