The work-energy theorem states that the work done on an object is equal to a change in which quantity?

The material that keeps its new shape after it is stretched is called?

Which situation will produce the greatest change of momentum

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.