Week 13 Homework Assignment
- Bullets of mass 3.0g are fired in parallel paths with speeds of 200m.s
through a hole 3.0mm in diameter. How far from the hole must you be to
detect a 1.0-cm diameter spread in the beam?
- A free neutron (m = 1.67 x 10-27kg) has a mean life of
900s. What is the uncertainty in its mass (in kg)?
- What is the full electron configuration in the ground state for element with
Z equal to (a) 27, (b) 36?
- Estimate the binding energy of the third electron in lithium using the Bohr
theory.
- Estimate the wavelength for an n =2 to n =1 transition in
chromium.