What is the age in years of a bone in which the ratio is measured to be ?
The age of bone is 17,058.783 years.
Ratio of to in living organisms is,
Ratio of to in bone is,
Decay equation in terms of half-life is,
Here, is the present number of atoms, represent the initial number of atoms atoms and represents the half-life of .
Substitute 5730 years for and 0.127 for ,
Take natural log on both sides,
Hence, the age of bone is 17,058.783 years.
Particle accelerators fire protons at target nuclei so that investigators can study the nuclear reactions that occur. In one experiment, the proton needs to have 20 MeV of kinetic energy as it impacts a 207 Pb nucleus. With what initial kinetic energy (in MeV) must the proton be fired toward the lead target? Assume the nucleus stays at rest
94% of StudySmarter users get better grades.Sign up for free