the pitcher on a softball team starts a windup to throw a pitch, as shown.



he wants to throw the pitch level with the ground and in the direction he is facing. at which point should he release the pitch?

w

x

y

z

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.