Given that the mass of a helium nucleus  42He is 4.001506 u. Find the binding energy of  42He (Given: Mass of proton, mp = 1.007277 u; Mass of neutron, mn = 1.008665 u; 1 u = 931.5 MeV)

Show full work in Handwritten format ,The answer must be accurate.

An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 146 g (HINT: Assume all the carbon is 12C and determine the number of atoms, 12C has a molar mass of 12 g/mol) and careful measurements show that the remaining 14C has a current decay rate of 26 decays/s. Determine the age of the bone (and presumably the jewelry). The ratio of 14C to 12C when the animal died was 1.25×10-12 & the half-life of 14C is 5730 y. Additionally, 1 mol = 6.022×1023 particles, 1 y = 365.25 days, & 1 day = 24 h.age of bone =

Taking into account the recoil (kinetic energy) of the daughter nucleus, calculate the kinetic energy Ka of the alpha particle in 238- the following decay of a 238 U Ka = 234 4.270 Incorrect Th + a U nucleus at rest. MeV