Survival in Apocalyptic Physics

One day, physical constants fluctuated around the world - electromagnetic induction anomalies, gravitational periodic disturbances, and thermal conduction efficiency plummeted. There is a total collapse of modern technological infrastructure. The protagonist is a high school physics teacher (or a science student who has just finished the college entrance examination). He has no superpowers in his hand, only a head full of physics formulas. Each chapter is equivalent to a major physical survival problem.