Some satellites use nuclear power. a. If such a satellite emits a 2 W flux of y rays having an average energy of 0.492 MeV, how many are emitted per second? y rays /s b. These y rays affect other satellites. How far away must another satellite be to only receive one gamma ray per second per square meter? km How many x-ray photons per second are created by an x-ray tube that produces a flux of x-rays having a power of 1.02 W? Assume the average energy per photon is 71 keV.

Some satellites use nuclear power. a. If such a satellite emits a 2 W flux of y rays having an average energy of 0.492 MeV, how many are emitted per second? y rays /s b. These y rays affect other satellites. How far away must another satellite be to only receive one gamma ray per second per square meter? km How many x-ray photons per second are created by an x-ray tube that produces a flux of x-rays having a power of 1.02 W? Assume the average energy per photon is 71 keV.