A 2D plane is divided into two haves. In one half, a constant magnetic field of 3 T points out of the page. In the other the magnetic field is zero. A square wire of side 4 m is half-way into the magnetic field region. It is being pulled out with a speed of 5 m/s. What is the emf enduced in the wire?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.