Final answer:
The rules of magnetic course and cruising altitude are associated with the Earth's magnetism and its influence on aircraft navigation instruments, such as a compass or the effect of static charges when flying over magnetic poles.
Step-by-step explanation:
The rules related to cruising altitudes for aircraft, including supersonic jets, involve understanding the concepts of magnetic direction and altitude based on airspeed and the Earth's magnetic field. When traversing a magnetic course with a westerly direction, aircraft must adopt an altitude corresponding to specific degrees set by aviation regulations. The concept of the Earth's magnetic poles and their effect on a compass needle's orientation is also crucial in understanding the orientation changes in navigation instruments while flying.
Considering a supersonic jet with a given charge, the magnetic force experienced by the plane flying over a pole can be calculated using the cross-product of the velocity vector and the magnetic field, which gives us the magnitude and direction dictated by the right-hand rule. The significance of this magnetic force effect depends on the practical elements of the aircraft's operation, such as the interference of navigational instruments or communication systems.