Expresar el vector A = ( -18; 25 ) mB = ( 50 km ; SO ) C = ( 23 m/s ; 1520 ) D = ( 12 i +20j ) km E = 65 km/h ( 0,376 I + mj) en los diferentes sistemas de coordenadas: a. Coordenadas polares b. En función de sus vectores base c. Coordenadas geográficas d. En función de su módulo y unitario

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.