Final answer:
The question seems to ask about the properties of lines and angles, but without additional context or diagrams it is impossible to provide specific answers about line JK, line n, or triangle JKL.
Step-by-step explanation:
The given information contains various mathematical and physics-related concepts, but it does not provide enough specific context to accurately answer the question about line JK, line n, the angle measures, or the properties of triangle JKL. Given the lack of figures or additional context, it is impossible to verify the statements about whether JK intersects line n, whether triangle JKL is equilateral, or what the measures of the angles in questions might be. Furthermore, there is a mix of unrelated data that seems to pertain to physics problems, such as magnetic fields, force vectors, and electric circuits which do not pertain directly to the geometrical question about lines and angles.