35. Special Relativity
Inertial Reference Frames
35. Special Relativity Inertial Reference Frames
140PRACTICE PROBLEM
Radioactive sources have a half-life of 120 minutes. If the source initially contained 1.3 × 1010 atoms and decayed by beta emission, how many beta particles are emitted between 60 and 240 minutes?
Radioactive sources have a half-life of 120 minutes. If the source initially contained 1.3 × 1010 atoms and decayed by beta emission, how many beta particles are emitted between 60 and 240 minutes?