A0.45-m metal rod moves 0.11 m in a direction that is perpendicular to a 0.80-t magnetic field in an elapsed time of 0.036 s. assuming that the acceleration of the rod is zero m/s2, determine the emf that exists between the ends of the rod.

(B) This cannot be determined without knowing the orientation of the rod relative to the magnetic field.

Because, Since acceleration of the rod is Zero. So, net force acting on the rod will be zero. But, its not specified that whether the rod is moving along varying magnetic field direction or a constant magnetic field direction.

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.