While on the way to work, juan calls his friend. during their conversation, juan mentions that he had a weird dream. he dreamt about this far away war land where the aliens were orange and walked around with swords. his friend laughed! according to freud, the content of the dream are the orange aliens with swords and the content is the hidden, unconscious meaning of the dream.

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm