How can i remember the phases of the moon in order?

What object a collides with object b and bounces back its final momentum is?

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.

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created