answers

Problem 1. w < 2*Pi*sqrt(2k/m)

Problem 2. T = (L/V)/(1-(v/V)²)

Problem 3. N = exp(C+ L/l) (Where C is the Euler-Mascheroni constant = 0.5772156649)

Problem 4. T = (L/V)*(exp(V/v)-1)

Problem 5. The German has a fish, lives in 4-th green house, smoke a «Rothmans», and drink a coffee.

Problem 6. 1, 5, 8 years.

Problem 7. L = a*(1+sqrt(3))

Problem 8. 1/r₁ = 1/r₂ = 1/(R-R₁)+ 1/(R-R₂)