A rod 38 cm long moves in a plane perpendicular to a magnetic field of 0.049 T. The velocity of the rod is perpendicular to its length. Find the speed of the rod if the potential difference between the ends is 9.7 V.

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?