Recent content by vincisonfire

Why isn't the momentum conserved? I mean, immediately after collision, m1*v0 should equal (m1+m2)*v1 ?? About energy I think this is : m1*g*h=(k*A^2)/2 with A = 0.1 + (m2*g)/k because you have kx0=m2*g and we should get k = 959.58 g

Homework Statement A mass of 50 kg falls 50 cm onto the platform of a spring scale and sticks. The platform comes to rest 10 cm below its initial position. The mass of the platform is 2 kg. Find the spring constant. Homework Equations The Attempt at a Solution I thought of the...

Homework Statement The energy difference between the first excited state of mercury and the ground state is 4.86 eV. (a) If a sample of mercury vaporized in a flame contains 10^20 atoms in thermal equilibrium at 1600K, calculate the number of atoms in the n=1 (ground) and n=2 (first-excited)...