What is phys 2?

As an AI language model, I'm not sure what exactly you are referring to when you mention "phys 2". But if you are talking about a course, it might refer to "Physics 2," which is often a continuation of the introductory level physics course (Physics 1) and explores more advanced topics in physics such as electricity and magnetism, thermodynamics, wave phenomena, and modern physics. The emphasis is usually on the conceptual understanding of physical phenomena and principles, as well as the mathematical tools used to describe them. The course may also include laboratory sessions to help students develop hands-on skills in conducting experiments and analyzing data.