Recent content by jj975

  1. J

    Asteroid on course with planet problem

    Homework Statement A asteroid of mass m=5*10^20 kg , speed u=10km/s is on a direct course to hit earth. If nuclear weapons are used to split it into two equal pieces at a distance away of the moon's orbit, d, what is the minimum energy required for each half to miss Earth by s=600km...
  2. J

    Is My Card Game Probability Calculation Correct?

    A card game involves dealing 3 types of cards to players. There are 6 type A cards, 9 type B cards and 6 type C cards. Each type A card has one matching counter. In a game with 5 players, one card of each type is selected at random and hidden without knowledge. Each player then chooses a...
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