Positive point charges q = 7.00 µС and q' = 4.00 μС are moving relative to an observer at point P, as shown in the figure (Figure 1). The distance d is 0.110 m, v = 4.50×106 m/s, and v' = 9.00×106 m/s.

when the two charges are at the locations in the figure, what is the net magnetic field they produce at point p?​