can someone help please

Part 1) A photon scatters off a free stationary electron and is measured by a detector at an angle 34.6D from the initial direction. its initial wavelength is 71.0 pm. Determine the wavelength of the photon measured by the detector. Determine the energy of the photon after scattering. Part 2) Assume that you have measured the wavelength and thus the momentum of the photon with 0.604% precision Calculate the minimum uncertainty AI in the POSltiOtI Of the PhOtOD- Part 3) You direct an Xeray source with a wavelength 710 pm towards the target The detector is at an angle of 90. You observe two peaks at wavelengths 74.6 pm and 824 pm Determine the masses of the particles in the target. we: we