Problem: A charge of -7.07 µC is traveling at a speed of 5.94 × 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 59.5o. A force of magnitude5.12 × 10-3 N acts on the charge,
A- What is the magnitude of the magnetic field?
I need help to solve the above problem and thanks in advance.