Physics 90 is a course offered at some universities and colleges. Unfortunately, I don’t have any information about a specific Physics 90 course. However, I can tell you about the general topics that are usually covered in a Physics 90 course.

Physics 90 is an advanced course that builds on the concepts learned in introductory physics courses. It covers a wide range of topics, including classical mechanics, electromagnetism, quantum mechanics, and thermodynamics. The course is designed to provide students with a deeper understanding of the fundamental principles of physics and their applications in the real world.

In classical mechanics, students learn about the motion of objects and the forces that cause them to move. Topics covered include kinematics, dynamics, work and energy, and momentum. Students also learn about oscillations and waves.

In electromagnetism, students learn about the behavior of electric and magnetic fields. Topics covered include Coulomb’s law, Gauss’s law, Faraday’s law, and Maxwell’s equations. Students also learn about electromagnetic waves and electromagnetic radiation.

In quantum mechanics, students learn about the behavior of matter and energy at the atomic and subatomic level. Topics covered include wave-particle duality, quantum states, quantum operators, and quantum mechanics of simple systems.

In thermodynamics, students learn about the relationship between heat, energy, and work. Topics covered include the laws of thermodynamics, entropy, and heat engines.

Physics 90 is a challenging course that requires a strong foundation in mathematics and physics. Students are expected to have a good understanding of calculus, differential equations, and linear algebra. They should also be familiar with the concepts covered in introductory physics courses.