David is driving a steady 29. 0 m/s when he passes tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2. 90 m/s2 at the instant when david passes.

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.