An alpha particle is accelerated with 5MeV of kinetic energy towards the nucleus of a gold atom with atomic number 79. What is the distance of closest approach that is reached by the alpha particle?
45 femtometers to two significant figures
JM
Related Physics A Level answers
All answers ▸Convection, conduction and radiation in space
A particle that moves uniformly in a circular path is accelerating yet moving at a constant speed. Explain this statement.
What is the threshold frequency of a photon to excite and then emit photoelectrons from a material?
Name an experiment proving that light is wave and one that is proving that light consists of particles.