A particle with charge q and speed v enters a magnetic field of strength B, moving in a plane perpendicular to the field. A second particle with 7 times the charge and 4.1 times the speed, traveling in the same plane, enters the same field, but in the meantime the field has changed in magnitude by a factor of 0.9. Find the magnitude of the magnetic force F2 exerted on the second particle in terms of the magnitude force F₁ exerted on the first particle and supply the missing numerical factor below. F₂=L _)F₁

A particle with charge q and speed v enters a magnetic field of strength B, moving in a plane perpendicular to the field. A second particle with 7 times the charge and 4.1 times the speed, traveling in the same plane, enters the same field, but in the meantime the field has changed in magnitude by a factor of 0.9. Find the magnitude of the magnetic force F2 exerted on the second particle in terms of the magnitude force F₁ exerted on the first particle and supply the missing numerical factor below. F₂=L _)F₁