Solve the all parts of given question:
Question: After a 0.825 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.45E+6 m/s.
Part A: What was the Compton shift in the photon's wavelength?
Part B: What angle was the photon scattered?
I need help to find the Compton shift in the photon's wavelength and what angle was the photon scattered.