X-rays strike a stationary target and undergo Compton scattering. If the energies of the incident and scattered X-ray are 485 keV and 300 keV respectively, determine the scattering angle (in degrees). 0 2. [-/1 Points] DETAILS OSCOLPHYS2016 29.4.WA.024.TUTORIAL. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A photon moving in the +x-direction, scatters off a free stationary electron. The wavelength of the incident photon is 0.0310 nm. After the collision, the electron moves at an angle a below the +x-axis, while the photon moves at an angle 0 = 77.3 above the +x-axis. (For the purpose of this exercise, assume that the electron is traveling slow enough that the non-relativistic relationship between momentum and velocity can be used.) (a) What is the angle a (in degrees)? counterclockwise from the +x-axis (b) Determine the speed of the electron (in m/s). Tutorial m/s Additional Materials Reading 3. [-/1 Points] DETAILS OSCOLPHYS2016 29.4.WA.028. (a) Find the momentum (in kg m/s) of a 72.1 keV x-ray photon. kg. m/s (b) Find the equivalent velocity (in m/s) of a neutron with the same momentum. m/s (c) What is the neutron's kinetic energy (in eV)? eV Additional Materials Reading MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 4. [-/1 Points) DETAILS OSCOLPHYS2016 29.6.WA.030. What is the wavelength (in nm) of an electron moving at 4.74% of the speed of light? MY NOTES nm Additional Materials Reading ASK YOUR TEACHER PRACTICE ANOTHER 5. [-/1 Points] DETAILS OSCOLPHYS2016 29.7.WA.036. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 1521 kg satellite travels through space at a constant velocity. If you know the uncertainty of the satellite's position to be 12 m, what is the uncertainty in the satellite's velocity? m/s Additional Materials Reading 6. [-/1 Points] DETAILS OSCOLPHYS2016 29.7.WA.039. (a) The lifetime of a highly unstable nucleus is 10-15 s. What is the smallest uncertainty (in eV) in its decay energy? eV (b) What is the ratio of this energy, AE, to the rest energy of an electron, Erest? E rest Additional Materials Reading MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER