In mathematics, you can learn basic geometry, and algebra, and progress to the level of applied mathematics, including calculus, differential equations, and more. Similarly, in physics, you can expect to cover topics ranging from the fundamentals to advanced levels. As I hold a degree in Mechanical Engineering, I can provide assistance in engineering subjects such as heat transfer, thermodynamics, and more. Furthermore, I have a master's degree in Photovoltaic Systems (solar energy), so I can offer guidance and help in this field as well.