1. The problem statement, all variables and given/known data A photon, a packet of electromagnetic radiation, carries both energy and momentum. Consider a photon with a wavelength of 428 nm in vacuum. A) What is the frequency of the photon? 7.01×1014 Hz CORRECT B) What is the energy of the photon? 4.64×10-19 J C) What is the momentum of the photon? 2. Relevant equations P=m*V Plancks Constant: (6.6262E-34 J/s) 3. The attempt at a solution A) (3E8 m/s) / (4.28E-7 m) = 7.009E14 Hz CORRECT B) (7.009E14 Hz) * (6.6262E-34 J/s) = 4.644E-19 J CORRECT This is where I need Help C) What is the momentum of the photon? [(7.009E14 Hz)*(6.6262E-34 J/s)] / (3E8 m/s) = 1.546E-27 I think I have the number but I can't submit it to check it, until I have the right unit of measurement. I tried (Hz*m/s), (m/s), (nm*m/s). If I don't have the number right would you let me know as well.