Recent content by Kittel Knight

  1. K

    High School Velocity (Where did I go wrong?)

    Of course, 400m + 300m = 700m So, if you run 700m in 200s (total time), your average velocity is what?
  2. K

    Undergrad Moment of inertia for rectangular plate

    Consider the plate as made of several parallel slices.
  3. K

    High School Is Betelgeuse Really Over 100,000 Times Brighter Than the Sun?

    Hi ! If side by side, how much would Betelgeuse be brighter than Sun? I mean visible light. Thanks!
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    Graduate String Theory & ZPE: Is There a Connection?

    Is there any relationship between String Theory and ZPE? I mean, does ST offer anything new, any new reason to ZPE? Thanks!
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    Bayesian Inference: Prob of Dry Pavement Outside House

    Let's consider the chance of rain and no rain: --- 20% chance of rain --- 20% chance of pavement wet (it doesn't matter if the sprinkler is on or off) --- 80% chance of no rain --- 80% * 40% chance of pavement wet due the sprinkler 80% * 60% chance of pavement dry (cause there is...
  6. K

    High School Questions about forces Newton's Laws (first law)

    Acceleration due to what? Why should this object be accelerating?
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    Learn C Programming: Tips for Engineering Student

    The best book I know is the first one: "The C programing Language", by Kernighan & Ritchie (the fathers of the C language). No several equivalents examples, not twice the same thing. It is a concise book, and each line is valuable.
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    Graduate Proving (a^n -b^n) Does Not Divide (a^n + b ^n): Divisibility Question

    That is easy. a=3,b=2,n=2 implies a^n+b^n=13 which is not divisible by a^n-b^n=5. So, if it is not valid for 3,2,and 2, then it is not valid for all integers.
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    Undergrad Tennis Probabilities: Player A vs. Player B

    It seems the OP, the way it is, leads to a strange conclusion! Who is wrong: me, or the assumptions in the OP? :confused:
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    Undergrad Tennis Probabilities: Player A vs. Player B

    Then, considering long time of observation (or "after a large amount of points played" ), for each 10 points played, Player A wins 5 points, and Player B wins 6 points...
  11. K

    High School Geometry (circle inscribed into triangle)

    The smallest segment equals the half of the triangle's base.
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    Graduate Solve the "Hardest Logical Puzzle Ever

    Hi Dave, I want to solve it by myself, and I won't take a look there. Of course, someone could ask me so why did I read all these posts. Well, maybe the first post was not ok, and Russell Berty could fix something in the latter posts. So, I read them all. But I was not expecting any...