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PerplexingProblemsBRINGING MATHS & PHYSICS TO LIFE
  • About
  • Video
  • Radio
  • The Book
  • Puzzle forum
    • **PROPOSE A PUZZLE**
    • Geometry
    • Mathematics
    • Statics
    • Dynamics & Collisions
    • Circular motion
    • Simple harmonic motion
    • Mad inventions & perpetual motion
    • Kinematics
    • Electricity
    • Gravity
    • Optics
    • Heat
    • Buoyancy & hydrostatics
    • Estimation
  • Bonus Material
    • Bonus Pulley Questions
    • Bonus Statics Questions
    • Bonus Scaling Questions
    • Bonus Probability Questions
  • Hall of fame
  • ERRATA
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@sportszon

active 3 years, 8 months ago
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