Each beta particle has an energy of 2.51 10-14 J, and 7.5% of the radiation is absorbed by the person. Assuming that the absorbed radiation is spread over the person's entire body, calculate the absorbed dose in rads and in grays

Question

Each beta particle has an energy of 2.51  10-14 J, and 7.5% of the radiation is absorbed by the person. Assuming that the absorbed radiation is spread over the person's entire body, calculate the absorbed dose in rads and in grays

i got 3.27e-5 for grays but its wrong

hannah · Answer

i am also having trouble iwth this one

The atomic masses of barium-137, nitrogen-14, and titanium-48 are 136.905821 amu, 14.003074 amu, and 47.947947 amu, respectively. For each isotope, calculate the nuclear mass, the nuclear binding energy, and the nuclear binding energy per nucleon.