Physics Cup – TalTech 2020 Problem 0 – Sheet resistance Hint 1 Problem 1 – Small oscillations of a system in an electric field Hint 1 Hint 2 Hint 3 Hint 4 Hint 5 Results Best solutions Problem 2 – Staircase-like surface of a crystal Hint 1 Hint 2 Hint 3 Hint 4 Hint 5 Problem 3 – Thread breaking point Hint 1 Hint 2 Hint 3 Hint 4 Hint 5 Problem 4 – Heat flux between plates Hint 1 Hint 2 Hint 3 Hint 4 Problem 5 – Lens position reconstruction Hint 1 Hint 2 Hint 3 Hint 4 Hint 5