Recent content by KKW

  1. K

    2 5cm radius circles inscribed inside a 15cm circle

    Homework Statement 2 identical circles of radius 5cm touching each other externally and both are touching an arc length of a larger 15cm circle. Find the 1. perimeter and 2. area of the region between the 2 smaller circles and the arc length of the larger circle Homework Equations s=r...
  2. K

    Radius of Smallest Circle in 6 Circles Problem (10cm)

    If you inscribe 4 circles inside a bigger circle and then add another smaller circle, touching the other 4 circles, what is the radius of the smallest circle (in the centre) if the radius of the biggest circle is 10cm?
  3. K

    Free Chess Program: Find Best Program for You

    ludochess.com/jester_eng/jester_eng.html is free and at the highest level has a rating of about 2000+. It has other 'versions' like Fischerandom too.
  4. K

    Can You Set Up a Chess Board Where White Is in Check and Missing Several Pieces?

    Playchess.com is an excellent site for 1-3 min games.
  5. K

    Can You Set Up a Chess Board Where White Is in Check and Missing Several Pieces?

    Adolf Anderssen- nearly became the first World Champion if not for Steintz...
  6. K

    Hyperboreans: What Are They? | Wiki Info

    To quote Bulfinch: The northern portion of the Earth was supposed to be inhabited by a happy race named the Hyperboreans, dwelling in everlasting bliss and spring beyond the lofty mountains whose caverns were supposed to send forth the piercing blasts of the north wind, which chilled the...
  7. K

    Gravitational attraction and acceleration over time.

    The force at which the bodies attract each other is F= GM1M2/d^2, where G is a constant. So when they approach each other the d, distance btwn them, decreases, causing the attraction to increase and the bodies would accelerate towards wach other. Think of g=9.81m/s^2. That is an accelation...
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